CORTECH INC
PRRN14A, 1998-05-18
PHARMACEUTICAL PREPARATIONS
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                            SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934
                                (Amendment No. )

Filed by the Registrant |_|
Filed by a Party other than the Registrant |X|

Check the appropriate box:

|X| Preliminary Proxy Statement
|_| Definitive Proxy Statement
|_| Definitive Additional Materials
|_| Soliciting Material Pursuant to Rule 14a-11(c) or Rule 14a-12


                                 Cortech, Inc.
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified In Its Charter)

                      Asset Value Fund Limited Partnership
- --------------------------------------------------------------------------------
                   (Name of Person(s) Filing Proxy Statement)

Payment of Filing Fee (Check the appropriate box):

|_| $125 per Exchange Act Rule 0-11(c)(1)(ii), 14a-6(i)(1) or 14a-6(j)(2).
|_| $500 per each party to the controversy pursuant to
    Exchange Act Rule 14a-6(i)(3).
|_| Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.
|X| No fee required

1) Title of each class of securities to which transaction applies:

   Common Stock
   -----------------------------------------------------------------------------

2) Aggregate number of securities to which transaction applies:

   -----------------------------------------------------------------------------

3) Per unit price or other underlying value of transaction computed
   pursuant to Exchange Act Rule 0-11:*

   -----------------------------------------------------------------------------

4) Proposed maximum aggregate value of transaction:

   -----------------------------------------------------------------------------

|_| Check box if any part of the fee is offset as provided by
    Exchange Act Rule 0-11(a)(2) and identify the filing for which
    the offsetting fee was paid previously.  Identify the previous
    filing by registration statement number, or the form or schedule
    and the date of its filing.

    1) Amount previously paid:
                               -------------------------------------------------
    2) Form, Schedule or Registration No.
                                         ---------------------------------------

    3) Filing party:
                    ------------------------------------------------------------

    4) Date filed:
                    ------------------------------------------------------------

___________
*Set forth the amount on which the filing fee is calculated and state how it was
 determined.

(032796DTI)

<PAGE>


   
REVISED PRELIMINARY OPPOSITION PROXY STATEMENT                      May __, 1998
    

                         ANNUAL MEETING OF STOCKHOLDERS
                  OF CORTECH, INC. ("Cortech" or "the Company")

             ASSET VALUE FUND LIMITED PARTNERSHIP ("Asset Value 1")
                        (a Delaware limited partnership)

     This Proxy  Statement  and the enclosed  white proxy card are being sent by
Asset Value on or about __________,  1998 in connection with its solicitation of
proxies at the Annual Meeting of Stockholders being held by Cortech at [time and
place] ( the "Meeting").  At the Meeting,  Cortech management  proposes to elect
its two nominees to the Board of Directors and to ratify the selection of Arthur
Andersen LLP as Cortech's independent auditors. Asset Value favors the selection
of Arthur Andersen LLP but opposes the election of management's  nominees to the
Board.

     Under the Certificate of Incorporation and Bylaws currently in effect,  the
Cortech  board has five members  whose terms are  staggered so that no more than
two terms  expire in any one year.  A staggered  board is an obstacle to gaining
control of the Board in any one year.  Asset Value Fund seeks to gain control of
Cortech at the Meeting by  proposing  to amend the Bylaws to increase the number
of  directors  from five to seven (the  "Board  Amendment")  and  subject to the
approval of the Board  Amendment,  to elect its four nominees as directors  (the
two vacancies  available under the current Bylaws plus the two vacancies created
by the Board  Amendment).  If the Board  Amendment  is approved and all of Asset
Value's nominees are elected,  Asset Value's nominees will constitute a majority
of the Board and therefore control of Cortech will transfer to Asset Value.

     If the Board  Amendment is not approved,  Asset Value will seek to have two
of its nominees elected as directors in opposition to Management's  nominees for
the two vacancies  available under the Bylaws  currently in effect.  Asset Value
will  vote  for  the  ratification  of  Arthur  Andersen  LLP as  the  Company's
independent auditors, for the Board Amendment and for its nominees.

   
     The close of business on _______, 1998 has been fixed by the Company as the
record date in determining the number of shares eligible to vote at the Meeting.
A  copy  of  this  Proxy  Statement  and  white Proxy Card will be mailed to all
stockholders entitled to vote at the Annual Meeting.
    

     In reliance upon Rule 14a-5(c) of the  Securities  and Exchange Act of 1934
2, reference is made to management's  proxy statement which is being sent to you
by the Company for a full  description  of  management's  proposals,  as well as
information with respect to the number of shares
- --------
     1    Asset Value is a Delaware limited partnership which is wholly-owned by
Kent Financial  Services,  Inc., a Delaware  corporation  ("Kent") the shares of
which are  publicly  traded on NASDAQ  under the symbol  KENT.  Asset  Value was
organized  in  September,  1990 for the  purpose  of  investing  in  securities,
principally marketable securities.  Additional information about Asset Value and
its  management  and about  Kent and the names of its  officers,  directors  and
controlling  stockholders and their ownership interests is presented on Schedule
1 of this Proxy Statement.

     2     Rule 14a-5(c)  provides that "any information  contained in any other
proxy  soliciting  material which has been furnished to each person solicited in
connection with the same meeting or subject matter may be omitted from the proxy
statement,  if a clear reference is made to the particular  document  containing
such information."


<PAGE>



eligible to vote at the Meeting,  the quorum,  the record date,  the  securities
ownership  of  the  Company,   information  about  the  Company's  officers  and
directors,  including  compensation,  information  about the ratification of the
appointment of Arthur Andersen LLP as independent auditors and the date by which
stockholders must submit proposals for inclusion in the next annual meeting.

PLEASE READ THE FOLLOWING  MATERIAL WITH CARE BECAUSE WE BELIEVE THAT  CORTECH'S
FUTURE DEPENDS ON YOUR VOTE.

                              WE URGE YOU TO VOTE:
          FOR THE BOARD AMENDMENT (which will add two vacancies on the
                                     Board.)

                   FOR ALL OF ASSET VALUE'S NOMINEES (which in
               combination with the Board Amendment would effect a
                        change of control to Asset Value)
   

     Asset  Value  seeks to gain  control of Cortech  because it  believes  that
Cortech's Board has repeatedly exercised poor judgment.

*        The Board  failed,  in our view,  to sharply  and  quickly  downsize in
         fiscal  1996,  when,  in our view,  it was  reasonable  to foresee that
         Cortech's technology was a losing cause.

*        The Board rewarded  management with ever increasing  compensation  even
         while stockholder values plummeted.

*        The Board refused Asset Value's request to cancel the poison pill.

*        Even after the Board announced that it would seek to redeploy Cortech's
         assets,  it did not, in Asset Value's opinion,  conduct an open bidding
         process.

*        Instead it expended  over  $673,000   pursuing a merger (the  "Merger")
         with  BioStar,  Inc.  ("BioStar"),  a company  which was  losing  money
         (almost $2  million  in 1997),  had an  accumulated  deficit  (over $25
         million at December 31, 1997), had a negative net worth (more than $5.6
         million),  had long and short term debt of $9.4 million and in our view
         had  no  immediate  prospects  for  earnings.  BioStar's  revenues  had
         increased from $1,272,000 in 1993 to $15,858,000 in 1997 and losses did
         improve from ($18.13) per share in 1993 to ($1.00) per share in 1997.

*        The Board proceeded to expend  Cortech's  limited  resources  promoting
         this  Merger even  though  Asset Value  warned the Board from the start
         that the Merger was not in the  interests of  stockholders  who,  Asset
         Value said, would never approve such a transaction.
     
We ask you.  What  will this  Board do next?  Don't  take a  chance.  Vote for a
change. Vote for Asset Value's nominees!


<PAGE>
     Shortly  before the Merger  termination,  Cortech  announced that Cortech's
Common Stock ("Shares")  would be  delisted  from NASDAQ.3  Management  concedes
that "the absence of the NASDAQ National Market listing for the Company's Common
Stock  [will] have an adverse  effect on the market  for,  and  potentially  the
market price of, the Company's Common Stock."


                                NOW YOU TELL US!

     Asset Value  believes that the Board should have known that Cortech  Common
Stock would be delisted irrespective of the Merger and this fact alone, in Asset
Value's view, should have caused the Board to reject the Merger with BioStar. We
believe that Cortech has wasted almost seven months and over $673,000 pursuing a
transaction  which,  Asset Value asserted was doomed from the start.  Instead we
think that once the Cortech Board  determined to change  control of Cortech,  it
should  have  sought  competitive   transactions  more   aggressively,   by  (i)
advertising in the financial media,  (ii) engaging an investment banker from the
outset to solicit merger partners in the investment community and (iii) publicly
stating that the Board was  conducting  an open  bidding  process for control of
Cortech.4   Above all,  the Board  should  have  sought the support of its major
stockholders.

              THIS BOARD ACTS LIKE THEIR VOICE IS THE ONLY CHOICE.

           "WHO CARES WHAT OWNERS THINK? Who owns American companies?
  The management, of course. Shareholders are tolerated, but managers rule.5"

     Not once  before  the Merger was  terminated  did a director  or officer of
Cortech  seek  the  advice  or  opinion  of  Asset  Value,   Cortech's   largest
stockholder.  Not once did a Cortech director or officer seek the cooperation of
Asset Value to avoid, what in our view, was the senseless costs of the ill-fated
merger  proposal even after Asset Value  expressed its opposition in a letter to
Mr. Lynn.

     We believe that Asset Value's  executives have had considerable  success in
restructuring  failed  businesses,  either by direct oversight or by influencing
the course of management.  Prior to the announcement of the Merger,  Asset Value
sought to have its  principal  officer,  Paul O.  Koether,  elected as a Cortech
director to assist in the redirection of Cortech's assets.  Although the Cortech
Board did not reject our request,  it did not acquiesce  either. In our view, it
dithered, deferred and delayed and finally, without any further personal contact
with its largest stockholder,  Cortech announced the BioStar  transaction.  Only
after the Merger failed did Cortech's president,  Kenneth Lynn finally telephone
Paul O. Koether in an attempt,  Asset Value thinks,  to deflect Asset Value from
seeking  control of the Board.  Mr.  Lynn was told that Asset  Value  wished the
Board to cancel the poison  pill and to  declassify  the Board  which,  in Asset
Value's opinion, would restore corporate

- --------
     3    Cortech is currently appealing the NASDAQ ruling.

     4    The Cortech  Board's own independent  financial  adviser in the Merger
stated  that it was not asked by the Board to  solicit  competitive  offers  for
Cortech.

     5    Market Watch, New York Times,  3/8/98,  Floyd Norris.   This quote has
been made without the permission of the New York Times or Mr. Norris.

<PAGE>
                                                         
democracy and  potentially  entice  prospective  acquirers.  As yet, the Cortech
Board has not  responded  but even if the Board took these  steps we now believe
they would be too little, too late.


                                  MORE RED INK!

     After  the  telephone   conversation  between  Messrs.  Lynn  and  Koether,
Cortech's  Form 10-Q  reported  that  Cortech's  losses not only  continued  but
increased  compared to last year. In a quarter with No research and  development
activities  and No  revenues,  Cortech  still had  approximately  15  full-time6
employees  and general and  administrative  expenses  of  $1,522,000,  of which,
according to Cortech,  merger expense only accounted for approximately $673,000.
In the face of these unabated losses,  Asset Value believes that the Board still
appears  bent on  maintaining  the  status  quo.  In our view,  it was this same
vacillating decision making that failed to staunch the hemorrhaging of Cortech's
stockholders  equity in the past and we  believe  that we should  not allow this
past to become the future.

      WARNING: "Those who cannot remember the past are condemned to repeat
                                      it."7

     In our  opinion,  several  individuals  and  entities,  other then  Cortech
stockholders  would have  reaped the  benefits of the Merger  with  BioStar.  We
believe  that Mr.  Lynn stood to benefit  from the Merger  because it would have
triggered his golden  parachute  ($1,300,000  for him and others with  severance
agreements) and enabled him (and other Board members and executive  officers) to
exercise 623,535 options.  BioStar's  management would have received  additional
compensation  and options in  connection  with the Merger.  In fact, it seems to
Asset Value,  that every  participant  was to profit from the Merger  except the
public stockholders of Cortech, who would have suffered a dilution in book value
per  Cortech  share of 64% (from an  historical  $.83 to a pro forma $.30) while
BioStar  stockholders  would have enjoyed an  improvement  in book value from an
historical negative ($2.86) to a positive $.17 per share.



PLEASE  ASK  YOURSELF:

     DO YOU WANT THE BOARD MEMBERS WHO APPROVED THE BIOSTAR MERGER TO SELECT THE
NEXT MERGER CANDIDATE FOR CORTECH?

     IF THE ANSWER IS NO THEN  PLEASE  SEND THE WHITE  PROXY CARD TO ASSET VALUE
AND VOTE TO INCREASE THE BOARD AND TO ELECT ALL OF ASSET VALUE'S NOMINEES.
- --------
     6    Cortech  does not  disclose  whether  there are  additional  part-time
employees and consultants still hanging on.

     7    The Life of Reason, (1905) George Santayana

                                                         

<PAGE>


               WOULD THE GODS GIVE US THE GIFT TO SEE OURSELVES AS
                                 OTHERS SEE US 8

     In connection with his support of the BioStar  transaction,  Lynn described
himself as a "fiduciary". Far from it in our view. Prior to the Merger proposal,
Lynn owned Cortech Shares worth less than $2,000 in the marketplace. As a result
of the Merger,  Lynn and others with severance  agreements  would have received:
(1)  payments of  $1,300,000;  (2) payment of premiums  for health  benefits for
eighteen months; and (3) the immediate vesting of 623,535 options.  Mr. Lynn was
also to continue as a director of the successor corporation after the Merger.

     Even before  approving the ill-fated  Merger with BioStar,  we believe that
the Cortech  Board and Mr. Lynn  ignored  the  growing  disparity  over the past
several  years  between the  interests  of Cortech's  management  and the public
stockholders'  interests.  The chart below reflects the  difference  between Mr.
Lynn's increasing compensation between 1993 and 1997 and the concomitant decline
of the market value of Cortech Shares.


<TABLE>

                       GRAPH OF CORTECH'S HIGH STOCK PRICE AND LYNN'S
                                        COMPENSATION.

                                       1993        1994       1995       1996        1997
                                      ------      ------     ------     ------      ------
<S>                                   <C>         <C>        <C>         <C>        <C>
Cortech's High Stock Price            $18.25      $14.25     $3.65625    $3.8125    $2.03125
Lynn's Compensation                   $140,000    $181,744   $305,499    $330,006   $330,513


                                               NOT A PRETTY PICTURE!
</TABLE>

     Asset  Value has stated and  restates  here that it will not merge  Cortech
with  an  Asset  Value  affiliate  or  a  company  in  which  Asset  Value  is a
stockholder.  Asset Value believes it should gain from any future acquisition or
Merger  involving  Cortech only to the extent all  stockholders  benefit.  Asset
Value's nominees have pledged not to accept any fees for serving as directors.
- --------
     8    An  anglicized  version of a  quotation  from the poem "To a Louse" by
Scottish poet Robert Burns.

                                                        

<PAGE>



     
                         THE SHAPE OF THINGS TO COME 9

     Asset Value has only  considered  possible  alternatives  for the future of
Cortech in a preliminary  way and therefore it does not know with certainty that
there are  potential  acquisitions  or  Mergers  that  would be  attractive  for
Cortech.

     Asset Value has stated and  restates  here that it has no  specific  Merger
partner  in mind.  So,  what will Asset  Value do if it  obtains  control of the
Cortech Board? As we stated,  we believe that once the Cortech Board  determined
to change  control of Cortech,  it should have sought  competitive  transactions
more  aggressively,  by  advertising  in the  financial  media,  by  engaging an
investment  banker from the outset to solicit Merger  partners in the investment
community and by publicly  stating that the Board was conducting an open bidding
process for control of Cortech.  If elected  Asset  Value's  nominees  will take
these steps.  But as stated above,  there can be no assurance  that taking these
steps will  produce a  transaction  that will be  favorable  for Cortech and its
stockholders.


                                STOP THE RED INK!

     Paul  Koether of Asset  Value has  suggested  publicly  that a shutdown  of
Cortech is an  appropriate  alternative  which would leave Cortech with cash and
future tax  benefits  from past losses plus the  enticement  of publicly  traded
shares  that  could be a vehicle  for a private  company  to become  public.  He
recognizes   that  there  would  be  risks   associated  with  such  an  action,
particularly  that  Cortech  would no longer be an  "ongoing"  business  and the
possible  reduction  in the  value  of the  technology  because  of the  loss of
experienced  personnel.  In any event,  Asset  Value would  evaluate  the matter
further with  current  employees if it gained  control,  therefore,  there is no
assurance that Cortech would be shut down.

     Asset Value can only give stockholders the assurance that its nominees will
try to further reduce Cortech's expenses and will move as quickly as possible to
secure a Merger  partner,  which  they  believe  maximizes  stockholder  values.
Remember  Asset  Value  has  promised  not to seek to  merge  Cortech  with  any
affiliate or entity in which Asset Value is an investor.  Asset Value intends to
benefit from its Cortech  investment only to the same extent other  stockholders
benefit.

                             IT'S TIME FOR A CHANGE.
                                VOTE FOR CHANGE.
                              VOTE FOR ASSET VALUE.

- --------
     9   H.G. Wells                                                        
    

<PAGE>



                                   PROPOSAL 1

                                INCREASE IN BOARD

     Asset  Value is asking for your  support  to  approve a  proposal  to amend
Article 3 Section 3.1 of the Bylaws of Cortech to set the number of directors to
serve on the Board of Directors at seven. The affirmative vote of a plurality of
the votes present in person or  represented by proxy and entitled to vote at the
meeting are required to approve this proposal.

     Asset  Value urges you to vote FOR the  approval  of the  proposal to amend
Article 3 Section 3.1 of the Bylaws of Cortech to set the number of directors to
serve on the Board of Directors at seven.

                                   PROPOSAL 2

                              ELECTION OF DIRECTORS

     Asset Value is asking for your support to elect its nominees. Under Article
II, Section 2.2 of the Company's  Bylaws,  to bring  business  before the annual
meeting,  a stockholder  must provide  timely,  written  notice to the secretary
describing  the  business  and  providing  information  about  the  stockholder,
including name and address and beneficial  ownership.  The affirmative vote of a
plurality of the votes present in person or represented by proxy and entitled to
vote at the  meeting are  required  to elect each of the Asset  Value  nominees.
Information  about  management's  nominees,  including  beneficial  ownership of
Cortech Shares and  compensation  can be found in management's  proxy statement.
The biographical data,  including age, principal  occupation or employment,  and
other  affiliations  and business  experience of each Asset Value nominee during
the last five years follows:

     Paul  O.  Koether,   age  61,  is  principally  engaged  in  the  following
businesses:  (i) as Chairman  and  director  of Kent  Financial  Services,  Inc.
("Kent")  since  July 1987 and  President  since  October  1990 and the  general
partner since 1990 of Shamrock  Associates,  an investment  partnership which is
the principal  stockholder of Kent and (ii) various positions with affiliates of
Kent,  including Chairman since 1990 and a registered  representative since 1989
of T. R. Winston & Company,  Inc. ("Winston") and since July 1992, a director of
American Metals  Service,  Inc.,  ("AMS") which was an indirect,  majority-owned
subsidiary of Kent before its shares were  distributed  to Kent's  stockholders.
Mr. Koether also has been Chairman  since April 1988,  President from April 1989
to February  1997 and director  since March 1988 of Pure World,  Inc.,  formerly
American  Holdings,  Inc.,  ("Pure  World") and since  December  1994 has been a
director and since January 1995 has been Chairman of Pure World's majority-owned
subsidiary,  Madis Botanicals, Inc., ("Madis") a manufacturer and distributor of
natural  products.  He is also Chairman and a director of Pure World's principal
stockholder,  Sun Equities  Corporation,  ("Sun") a private company. Mr. Koether
served as Chairman and a director of NorthCorp Realty  Advisors,  Inc., an asset
management  company,  ("NorthCorp")  from June 1992 when it was acquired by Pure
World until August, 1994 when it was merged and renamed Crown NorthCorp, Inc.




<PAGE>



     Mark W. Jaindl, age 37, is the President and Chief Executive Officer of the
American Bank of the Lehigh Valley,  a commercial  bank. He has served as Senior
Vice  President  of Pure  World  from June 1992 until May 1995 and as a director
since  October  1994.  He was Senior Vice  President of Madis from December 1994
until May 1995 and a director of Madis since  December 1994 and he has served as
a director of AMS since July 1992.  Mr. Jaindl was a director of NorthCorp  from
June 1992 until  September  1994 and was Interim  President  of  NorthCorp  from
February  1994 until August 1994.  From May 1982 to October 1991 and again since
May 1995 he has  served as Chief  Financial  Officer of Jaindl  Farms,  which is
engaged in  diversified  businesses,  including  the  operation of a 12,000-acre
turkey farm, a mobile home park, a John Deere  dealership and a grain operation.
Mr. Jaindl also served as the Chief Financial Officer of Jaindl Land Company,  a
developer  of  residential,  commercial  and  industrial  properties  in eastern
Pennsylvania.

     John  W.  Galuchie,  Jr.,  age  45,  a  certified  public  accountant,   is
principally engaged in the following businesses: (i) Winston, as President since
January 1990 and director since September 1989; (ii) Kent, in various  executive
positions since 1986 and a director from June 1989 until August 1993; (iii) Pure
World, as Executive Vice President since April 1988,  director from January 1990
until  October 1994 and for more than five years as Vice  President and director
of Sun; (iv) AMS as Vice  President,  Treasurer and a director  since July 1992.
Mr.  Galuchie  served as a director  of Crown  NorthCorp,  Inc.,  the  successor
corporation to NorthCorp from June 1992 to August 1996.

     James L.  Bicksler,  age 60,  is a  Professor  of  Economics  and  Finance,
Graduate School of Management,  Rutgers University, a position he has held since
1969.

     Asset Value urges you to vote FOR the nominees  described above.  They will
seek to maximize  stockholder  values and pledge to cooperate  with and consider
the proposals of other stockholders.

     If more than a  majority  of Cortech  Shares  present by proxy or in person
vote in favor of amending the Bylaws to increase the number of directors,  there
will be four vacancies on the Board and the four nominees  receiving the highest
vote (whether Asset Value's  nominees or management's  nominees) will be elected
to the Board.  If all of Asset  Value's  nominees  are  elected,  Asset  Value's
nominees  will  constitute  a majority of the Board and control of Cortech  will
transfer to Asset Value.

     If the Board  Amendment is not approved,  the two nominees  (whether  Asset
Value's nominees or Management's nominees) receiving the highest number of votes
cast at the meeting will be elected.  Asset Value makes no provision  for voting
for management's  nominees,  therefore if you vote for only one of Asset Value's
nominees,  you will not have an  opportunity to vote for a candidate to fill the
other vacancy to the Board.

     Even if you have voted against  increasing  the Board please vote for Asset
Value's  nominees.  The nominees  receiving the highest  number of votes will be
elected.  If the Board  Amendment is not approved two of Asset Value's  nominees
can still be elected if their votes exceed the votes for Management's  nominees.
If the Bylaw Amendment is approved,  management's  nominees can still be elected
to two  vacancies if their votes exceed the votes of any of the four Asset Value
nominees.

     Therefore if you agree that it is time for a change, VOTE

                                                        

<PAGE>



                           YES to the Board Amendment
                                       and
                           FOR Asset Value's nominees

                                   PROPOSAL 3

                       RATIFICATION OF INDEPENDENT AUDITOR

     Information  about the  ratification of Arthur Andersen LLP can be found in
management's  proxy  statement.  Asset Value favors the  ratification  of Arthur
Andersen LLP as Cortech's independent auditor.


                       REQUIRED VOTE AND MANNER OF VOTING

     If more than a  majority  of Cortech  Shares  present by proxy or in person
vote in favor of the Board Amendment,  there will be four vacancies on the Board
and the four nominees receiving the highest vote (whether Asset Value's nominees
or management's nominees) will be elected to the Board. If the increase in Board
members is not approved  the two nominees  (whether  Asset  Value's  nominees or
Management's nominees) receiving the highest number of votes cast at the meeting
will be elected.  If more than a majority of shares of Cortech  Shares voting at
the  Meeting  vote for the  ratification  of Arthur  Andersen  LLP as  Cortech's
independent  auditor,  this  proposal  will be approved.  Information  about the
quorum and voting for management's  proposals can be found in management's proxy
statement.

     Valid proxies will be voted as instructed therein,  but absent instructions
on the white proxy card,  will be voted FOR the Bylaw  amendment  to enlarge the
Board, FOR Asset Value's  nominees,  and FOR the ratification of Arthur Anderson
LLP and in the  discretion  of the proxies on any other matter that comes before
the  Meeting  except  that  proxies  will not be voted on another  matter  which
becomes  known a  reasonable  time before the  Meeting.  Abstentions  and broker
non-votes  (where a  nominee  holding  shares  for a  beneficial  owner  has not
received voting  instructions  from the beneficial owner on a particular  matter
and the nominee does not vote the shares)  will be counted in the  determination
of a quorum but will not be counted for or against any proposal.  We urge you to
sign, date and return the white proxy card in the enclosed envelope.  No postage
is required if mailed in the United States.



                              SHARES IN STREET NAME

     If you hold your  Cortech  Shares in the name of a brokerage  firm or bank,
your broker or banker cannot vote the Shares until the broker or banker receives
specific  instructions  from you. Please contact the party at the brokerage firm
or bank  responsible  for your account to make sure that a proxy is executed for
your Cortech Shares on the white proxy card.


                                                      

<PAGE>


                              REVOCATION OF PROXIES

     If you have executed  management's  **** proxy card before  receiving  this
Proxy Statement, you have every right to change your vote by signing, dating and
returning the enclosed white proxy card in the postage-paid  envelope  provided.
Only your latest dated proxy will count at the Meeting. Any proxy, including the
proxy  solicited  hereby,  may be revoked at any time  before it is voted by (i)
submitting a duly  executed  proxy  bearing a later date to the Secretary of the
Company or to Asset  Value,  (ii)  filing  with the  Secretary  of the Company a
written revocation or (iii) attending and voting at the Meeting in person.


                              SOLICITATION EXPENSE

     Asset Value,  Mark W. Jaindl and  Frederick J. Jaindl (see Schedule 1) will
bear the cost of preparing,  assembling  and mailing the enclosed form of proxy,
this proxy  statement and other  material which may be sent to  stockholders  in
connection with this solicitation. Officers and regular employees of Asset Value
or its affiliates may solicit proxies by mail, telephone,  telegraph,  facsimile
and personal  interview,  for which no additional  compensation will be paid. In
addition, Asset Value has retained Beacon Hill Partners, Inc. ("Beacon Hill") to
solicit proxies on its behalf. In connection with the solicitation in opposition
to  Cortech,  Asset  Value has  agreed to pay  Beacon  Hill up to  $15,000  plus
expenses,  part of which is a success  fee.  Asset  Value  advanced  Beacon Hill
$3,000 to cover  expenses.  It is  anticipated  that the cost to Asset  Value in
connection with this solicitation will be approximately $50,000.

                                            Very truly yours,


                                            Paul O. Koether
                                            Asset Value Fund Limited Partnership



                                    IMPORTANT

     If your shares are held in "Street  Name" only your bank or broker can vote
your shares, and only upon receipt of your specific instructions. Please contact
the person  responsible  for your account and  instruct  them to execute a white
proxy card as soon as possible.

     If you have any questions or need further assistance in voting, please call
John W. Galuchie,  Jr., of Asset Value Fund Limited Partnership collect at (908)
234-1881, or our proxy solicitor:

                           BEACON HILL PARTNERS, INC.
                                 90 BROAD STREET
                            NEW YORK, NEW YORK 10004
                                 (800) 253-3814


<PAGE>


                                                                      SCHEDULE 1



              ADDITIONAL INFORMATION ABOUT ASSET VALUE FUND LIMITED
               PARTNERSHIP, MARK W. JAINDL AND FREDERICK J. JAINDL


     Asset  Value  Fund  Limited  Partnership  ("Asset  Value")  is  engaged  in
investing in securities.  The sole general partner of Asset Value is Asset Value
Management,  Inc.  ("Asset  Value  Management").  Asset  Value  Management  is a
wholly-owned  subsidiary  of  Kent  Financial  Services,  Inc.  ("Kent"),  whose
principal  business is the operation of T. R. Winston & Company,  Inc.  ("TRW"),
its wholly-owned  subsidiary.  TRW is a securities broker-dealer registered with
the National  Association of Securities  Dealers,  Inc. Asset Value, Asset Value
Management,  Kent and TRW maintain offices at 376 Main Street,  Bedminster,  New
Jersey 07921.

     Mark W. Jaindl ("Mark Jaindl") is the President and Chief Executive Officer
of the American Bank of the Lehigh  Valley,  a commercial  bank whose  principal
business  address is 4029 West Tilghman Street,  Allentown,  PA 18104 ("American
Bank"). (For additional  information on Mark Jaindl, see PROPOSAL 1, ELECTION OF
DIRECTORS.) Frederick J. Jaindl ("Fred Jaindl") is the sole proprietor of Jaindl
Farms (turkey  farming),  whose  principal  business  address is 3150 Coffeetown
Road,  Orefield,  PA 18069.  Fred Jaindl is Chairman of American Bank.  Mark and
Fred Jaindl are the principal  stockholders of American Bank. Mark Jaindl is the
son of Fred Jaindl.

     As of March  23,  1998,  Asset  Value  holds  2,000,000  Cortech  Shares or
approximately 10.80% of the total Cortech Shares outstanding.  Mark Jaindl holds
250,000 Cortech  Shares,  or  approximately  1.35% and Fred Jaindl holds 520,000
Cortech Shares or approximately  2.80%. Asset Value, Mark Jaindl and Fred Jaindl
disclaim the beneficial ownership of each other's Cortech Shares.  Purchases and
sales of Cortech  Shares by Asset Value,  Mark Jaindl and Fred Jaindl are listed
on Schedule 2.

     During the past ten years, none of Asset Value,  Mark Jaindl,  Fred Jaindl,
Asset Value  Management,  Kent, TRW, or the Directors and Executive  Officers of
Kent has been convicted in a criminal proceeding.



<PAGE>


<TABLE>

<CAPTION>
                            DIRECTORS AND EXECUTIVE OFFICERS
                            OF KENT FINANCIAL SERVICES, INC.

                                                                 Percent of Direct or
                                                                  Indirect Ownership
 Name and Address                 Position and Office          of Voting Securities of
of Beneficial Owner               Currently Held            Kent Financial Services, Inc.
- -------------------               -------------------       -----------------------------
<S>                               <C>                                <C>
Paul O. Koether                   Chairman, Director                 44.90%
 211 Pennbrook Road                and President
 Far Hills, NJ 07931

John W. Galuchie, Jr.             Vice President and
  376 Main Street                  Treasurer                          2.32%
 Bedminster, NJ 07921

Mark Koscinski                    Vice President                         *
  376 Main Street
  Bedminster, NJ 07921

M. Michael Witte                  Director                            1.15%
 1120 Granville Avenue
 Suite 102
 Los Angeles, CA 90049

Casey K. Tjang                    Director                               *
 56 Hall Drive
 Clark, NJ 07066

Mathew E. Hoffman                 Director                               *
 62 Rosehill Avenue
 New Rochelle, NY 10804
_________________________________________
*Less than 1 percent
 

</TABLE>

<PAGE>



                                                                      SCHEDULE 2

<TABLE>


                      PURCHASES AND SALES OF CORTECH SHARES

ASSET VALUE<F1>

Dates purchased       Number of shares purchased    Price per share<F2>    Total
- ---------------       --------------------------    ---------------      -------------
<S>                    <C>                            <C>                <C>   
07/25/97                  20,000                      $.61375            $   12,275.00
07/31/97                   6,700                       .625                   4,321.50
08/06/97                   9,100                       .6875                  6,256.25
08/07/97                   2,600                       .6875                  1,787.50
08/08/97                   3,100                       .6875                  2,131.25
08/12/97                 458,500                       .6875                315,218.75
08/15/97                   5,100                       .6875                  3,506.25
08/18/97                   5,200                       .6689                  3,478.28
08/19/97                   3,200                       .65625                 2,100.00
08/20/97                   9,000                       .65625                 5,906.25
08/21/97                   8,500                       .6875                  5,843.75
08/27/97                 146,800                       .6875                103,861.00
09/08/97                  22,000                       .6875                 15,125.00
09/11/97                  20,000                       .703125               14,062.50
09/15/97                  26,000                       .703125               18,281.25
09/16/97                   7,700                       .703125                5,414.06
09/17/97                   4,000                       .703125                2,812.50
09/24/97                  31,425                       .703125               22,095.70
09/30/97                  89,600                       .703125               63,000.00
10/01/97                  56,000                       .703125               39,375.00
10/02/97                   1,475                       .703125                1,037.11
10/06/97                  25,000                       .6875                 17,187.50
10/07/97                   2,000                       .6875                  1,375.00
10/07/97                   6,500                       .71875                 4,671.88
10/07/97                 336,000                       .703125              236,250.00
10/08/97               1,556,757                       .65                1,011,892.05
10/08/97                   5,000                       .75                    3,750.00
10/08/97                  20,000                       .71875                14,375.00
10/09/97                   2,000                       .71875                 1,437.50
10/09/97                   5,000                       .765625                3,828.13
10/09/97                  18,500                       .75                   13,875.00
10/10/97                   4,500                       .78125                 3,515.63
10/14/97                   1,000                       .78125                   781.25
10/14/97                   6,000                       .8125                  4,875.00
10/28/97                  15,000                       .6875                 10,312.50
10/30/97                  13,000                       .6875                  8,937.50
10/30/97                  12,000                       .65625                 7,875.00
11/03/97                   3,700                       .6875                  2,543.75
11/04/97                   4,900                       .65625                 3,215.63
11/05/97                  12,000                       .6875                  8,250.00
11/05/97                   2,500                       .65625                 1,640.63
11/07/97                  11,300                       .65625                 7,415.63
11/10/97                  58,343                       .65625                38,287.59
11/11/97                  10,500                       .65625                 6,890.63

                                                         (table continued on next page)

<PAGE>



(table continued from previous page)


Dates purchased       Number of shares purchased    Price per share<F2>    Total
- ---------------       --------------------------    ---------------      -------------
11/14/97                   4,000                       .65625                 2,625.00
11/14/97                   8,500                       .6875                  5,843.75
11/17/97                   9,700                       .65625                 6,365.63
11/18/97                  11,300                       .65625                 7,415.63
11/24/97                   5,000                       .640625                3,203.13
                       ---------                                         -------------
                       3,106,000                                         $2,086,524.84
                       ---------                                         -------------

Dates sold            Number of shares sold         Price per share<F2>    Total
- ----------            -------------------------     ---------------      -------------
08/13/97                   3,000                      $.6875             $    2,062.43
08/29/97                   3,000                       .71875                 2,156.17
09/17/97                   2,000                       .71875                 1,437.45
09/30/97                   3,000                       .71875                 2,156.17
10/07/97                 325,000                       .65                  211,242.95
02/10/98                 770,000                       .6705                516,285.00
                       ---------                                         -------------
                       1,106,000                                            735,340.17<F3>
                       ---------                                         -------------
                       2,000,000                                         $1,319,425.00
                       =========                                         =============


MARK W. JAINDL

Dates purchased       Number of shares purchased    Price per share<F2>    Total
- ---------------       --------------------------    ---------------      -------------
02/10/98                 250,000                       .6705             $  167,625.00
                      ==========                                         =============



FREDERICK J. JAINDL

Dates purchased       Number of shares purchased    Price per share<F2>    Total
- ---------------       --------------------------    ---------------      -------------
02/10/98                 520,000                       .6705             $  348,660.00
                      ==========                                         =============



<FN>
<F1>     Excludes the purchase for an aggregate  amount of $11,251.52 on October
         8, 1997 of warrants to purchase 562,576 shares of Cortech stock,  which
         were contributed back to the capital of Cortech on October 18, 1997.
         No shares were purchased with or are being held with borrowed funds.

<F2>     Price excludes brokerage commissions, if any.

<F3>     Reflects loss on sale of $31,759.67.
</FN>
</TABLE>
                                                            

<PAGE>



PRELIMINARY PROXY CARD

                                  Cortech, Inc.
                    Annual Meeting To Be Held On [date], 1998
       This Proxy Is Being Solicited On Behalf Of Asset Value Fund Limited
                          Partnership ("Asset Value")

     The undersigned hereby appoints Paul O. Koether, Mark W. Jaindl and John W.
Galuchie, Jr. or any of them, the undersigned's proxies, each with full power of
substitution,  to vote  all  Shares  of  Common  Stock  of  Cortech,  Inc.  (the
"Company") which the undersigned would be entitled to vote if personally present
at the Annual Meeting of Stockholders of the Company to be held on [date],  1998
at **A.M. at  **************************************  (the "Meeting") and at any
adjournments or  postponements  thereof and,  without limiting the generality of
the power hereby conferred,  the proxy nominees named above and each of them are
specifically directed to vote as indicated below.

     WHERE A CHOICE IS INDICATED,  THE SHARES  REPRESENTED BY THIS PROXY WILL BE
VOTED AS SPECIFIED.  IF NO CHOICE IS INDICATED,  THE SHARES  REPRESENTED BY THIS
PROXY WILL BE VOTED FOR THE  AMENDMENT  TO THE BYLAWS TO INCREASE  THE NUMBER OF
DIRECTORS TO SEVEN, FOR THE ELECTION OF ASSET VALUE'S NOMINEES AS DIRECTORS, and
FOR THE RATIFICATION OF ARTHUR ANDERSEN LLP.

     If there are  amendments  or  variations  to the  matters  proposed  at the
Meeting  or at any  adjournments  or  postponements  thereof,  or if  any  other
business  properly  comes before the Meeting,  this proxy confers  discretionary
authority  on the proxy  nominees  named herein and each of them to vote on such
amendments, variations or other business.

ASSET VALUE  RECOMMENDS A VOTE FOR  INCREASING THE NUMBER OF DIRECTORS FROM FIVE
TO SEVEN.

1. To amend Article 3 Section 3.1 of the  Company's  Bylaws to set the number of
directors to serve on the Board of Directors at seven.

FOR__________             AGAINST__________            ABSTAIN__________


ASSET VALUE RECOMMENDS A VOTE FOR THE ASSET VALUE NOMINEES.

2. To elect Asset Value's nominees as Directors:

Paul O. Koether          _____FOR             _____AGAINST          _____ABSTAIN

Mark W. Jaindl           _____FOR             _____AGAINST          _____ABSTAIN

John W. Galuchie, Jr.    _____FOR             _____AGAINST          _____ABSTAIN

James L. Bicksler        _____FOR             _____AGAINST          _____ABSTAIN



<PAGE>


ASSET VALUE RECOMMENDS A VOTE FOR THE RATIFICATION OF ARTHUR ANDERSEN LLP.

3. To ratify the appointment of Arthur Andersen LLP as independent  auditors for
the year ended December 31, 1998.

FOR__________             AGAINST__________            ABSTAIN__________

4. In their  discretion,  on such other  matters as may properly come before the
annual meeting or any postponements or adjournments thereof, except that proxies
will not be voted on another matter which becomes known a reasonable time before
the meeting.

     The undersigned  acknowledges  receipt of the accompanying Notice of Annual
Meeting of  Stockholders  and Proxy  Statement for the  _________________,  1998
meeting.

                                      Dated: _____________________________, 1998


                                      ------------------------------------------
                                      Signature of Stockholder


                                      ------------------------------------------
                                      Signature of Stockholder if Shares held in
                                      more than one name (Please sign exactly as
                                      name or names appear hereon. Full title of
                                      one  signing  in  representative  capacity
                                      should   be   clearly   designated   after
                                      signature.  If a corporation,  please sign
                                      in full corporate  name  by  President  or
                                      other   authorized   officer(s).     If  a
                                      partnership,  please  sign  in partnership
                                      name by authorized person.  If stock is in
                                      the name of  two  or  more  persons,  each
                                      should  sign.  Joint  owners  should  each
                                      sign.  Names of all joint holders should
                                      be written even if signed by only one.)



ASSET VALUE RECOMMENDS A VOTE FOR PROPOSALS  1, 2, AND 3.


PLEASE  PROMPTLY  COMPLETE,  DATE,  SIGN AND  MAIL  THIS  PROXY IN THE  ENCLOSED
POSTAGE-PAID ENVELOPE.



   
PRELIMINARY OPPOSITION PROXY MATERIAL

                      ASSET VALUE FUND LIMITED PARTNERSHIP
                          376 MAIN STREET, P.O. BOX 74
                              BEDMINSTER, NJ 07921
                                 (908) 234-1881

                                                                     May__, 1998

Dear Fellow Cortech Stockholder:

     We and two other  investors  ("Asset Value") own  approximately  15% of the
ourstanding shares of Cortech, Inc. ("Cortech"), which makes us by far Cortech's
largest  stockholders.  In connection with the upcoming  Annual  Meeting,  Asset
Value is seeking your vote to elect its four nominees, who would then constitute
a majority of the Cortech  Board.1  Asset Value seeks to gain control of Cortech
because it believes that Cortech's Board has repeatedly exercised poor judgment.

     As you know,  Cortech lost over $77 million  through the end of fiscal 1996
attempting  to  exploit  its  technology.  Finally  in April of 1997,  the Board
announced that Cortech would cease operations and pursue strategic  alternatives
to use its remaining cash which as of December 31, 1997 was $15.4 million.

           Mirror, Mirror on the Wall, Who's the Fairest of Them All?

     Kenneth Lynn, CEO of Cortech, and the Board would have us believe that once
they  determined  that Cortech could not succeed as a stand-alone  entity,  they
scoured  the land for a merger  partner  and the  only  prospective  suitor  was
BioStar. BioStar, a company which lost almost ($2,000,000) in fiscal 1997 and by
the end of 1997 had a  negative  net  worth of  ($5,600,000).  After  the  Board
announced in December of 1997 that Cortech would merge with BioStar, Asset Value
warned the Board that Asset Value  believed the Merger was not in the  interests
of stockholders  who, Asset Value said,  would never approve such a transaction.
Notwithstanding this warning, the Board proceeded,  in Asset Value's opinion, to
waste a  substantial  portion of  Cortech's  remaining  resources on the Merger,
which  just as  Asset  Value  predicted,  failed,  in our  opinion,  for lack of
stockholder support.

                    We ask you. What will this Board do next?
    Don't take a chance. Vote for a change. Vote for Asset Value's nominees!

     Now it is time  for the  Annual  Meeting;  time  for  the  stockholders  to
re-evaluate  the past  leadership  of Cortech and time to consider a change.  We
believe that Asset Value has the same interests as all other  stockholders which
it believes will be a change from this management - a substantial change.

- --------
     1    Cortech  has a staggered  board which means under the current  by-laws
that only two of the five  directors  must seek election this year.  Asset Value
seeks to amend the by-laws to increase  the size of the board from five to seven
and to elect its four  nominees  as  directors  to the four  vacancies  (the two
available  under  the  current  by-laws  and the two  vacancies  created  by the
proposed  amendment).  If successful,  Asset Value's nominees would constitute a
majority of the board.


<PAGE>



                                  MORE RED INK!

     Cortech's  Form 10-Q  filed for the first  quarter  of 1998  reported  that
Cortech's  losses  not  only  continued  but  increased  compared  to last  year
($1,399,000  in 1998;  $897,000  in 1997).  In a quarter  with No  research  and
development  activities  and No revenues,  Cortech  still had  approximately  15
full-time2 employees and general and administrative  expenses of $1,522,000,  of
which,  according to Cortech,  merger expense only  accounted for  approximately
$673,000.  In the  aggregate,  Cortech has lost over $86 million as of March 31,
1998. In the face of these unabated losses,  Asset Value believes that the Board
still appears bent on maintaining  the status quo. In our view, it was this same
vacillating decision making that failed to staunch the hemorrhaging of Cortech's
stockholders  equity in the past and we  believe  that we should  not allow this
past to become the  future.  Vote for  Change:  Send in the White Proxy Card and
Vote for Asset Value's Nominees.

      WARNING: "Those who cannot remember the past are condemned to repeat
                                      it."3

     In our  opinion,  several  individuals  and  entities,  other then  Cortech
stockholders  would have  reaped the  benefits of the Merger  with  BioStar.  We
believe  that Mr.  Lynn stood to benefit  from the Merger  because it would have
triggered his golden  parachute  ($1,300,000  for him and others with  severance
agreements) and enabled him (and other Board members and executive  officers) to
exercise 623,535 options.  BioStar's  management would have received  additional
compensation  and options in  connection  with the Merger.  In fact, it seems to
Asset Value,  that every  participant  was to profit from the Merger  except the
public stockholders of Cortech, who would have suffered a dilution in book value
per  Cortech  share of 64% (from an  historical  $.83 to a pro forma $.30) while
BioStar  stockholders  would have enjoyed an  improvement  in book value from an
historical negative ($2.86) to a positive $.17 per share.

PLEASE  ASK  YOURSELF:

     DO YOU WANT THE BOARD MEMBERS WHO APPROVED THE BIOSTAR MERGER TO SELECT THE
NEXT MERGER CANDIDATE FOR CORTECH?

     IF THE ANSWER IS NO THEN  PLEASE  SEND THE WHITE  PROXY CARD TO ASSET VALUE
AND VOTE TO INCREASE THE BOARD AND TO ELECT ALL OF ASSET VALUE'S NOMINEES.



- --------
     2    Cortech  does not  disclose  whether  there are  additional  part-time
employees and consultants still hanging on.

     3    The Life of Reason, (1905) George Santayana


<PAGE>



               WOULD THE GODS GIVE US THE GIFT TO SEE OURSELVES AS
                                 OTHERS SEE US 4

     In connection with his support of the BioStar  transaction,  Lynn described
himself as a "fiduciary". Far from it in our view. Prior to the Merger proposal,
Lynn owned Cortech Shares worth less than $2,000 in the marketplace. As a result
of the Merger,  Lynn and others with severance  agreements  would have received:
(1)  payments of  $1,300,000;  (2) payment of premiums  for health  benefits for
eighteen months; and (3) the immediate vesting of 623,535 options.  Mr. Lynn was
also to continue as a director of the successor corporation after the Merger.

     Even before  approving the ill-fated  Merger with BioStar,  we believe that
the Cortech  Board and Mr. Lynn  ignored  the  growing  disparity  over the past
several  years  between the  interests  of Cortech's  management  and the public
stockholders'  interests.  The chart below reflects the  difference  between Mr.
Lynn's increasing compensation between 1993 and 1997 and the concomitant decline
of the market value of Cortech Shares.




<TABLE>

                       GRAPH OF CORTECH'S HIGH STOCK PRICE AND LYNN'S
                                        COMPENSATION.

                                       1993        1994       1995       1996        1997
                                      ------      ------     ------     ------      ------
<S>                                   <C>         <C>        <C>         <C>        <C>
Cortech's High Stock Price            $18.25      $14.25     $3.65625    $3.8125    $2.03125
Lynn's Compensation                   $140,000    $181,744   $305,499    $330,006   $330,513


                                               NOT A PRETTY PICTURE!
</TABLE>



     After Asset Value acquired its interest in Cortech in the fall of September
1997,  we asked the Cortech Board to elect a nominee of Asset Value to the Board
(only one on a five member Board). The Cortech Board, in effect,  refused,  then
the Cortech  Directors  approved a transaction  which,  in our view,  would have
negatively  affected all  stockholders.  They did this without  bothering to ask
for, or permit, the participation of Cortech's largest stockholder, Asset Value,
whose  interests,  clearly,  in  our  opinion,  are  more  matched  with  public
stockholders  than a Board which  collectively owns less than 2 1/2 % of Cortech
Common Stock.


- --------
     4    An  anglicized  version of a  quotation  from the poem "To a Louse" by
Scottish poet Robert Burns.


<PAGE>



                          THE SHAPE OF THINGS TO COME5

     Asset Value has only  considered  possible  alternatives  for the future of
Cortech in a preliminary  way and therefore it does not know with certainty that
there are  potential  acquisitions  or  Mergers  that  would be  attractive  for
Cortech.

     Asset Value has stated and  restates  here that it has no  specific  Merger
partner  in mind.  So,  what will Asset  Value do if it  obtains  control of the
Cortech Board? As we stated,  we believe that once the Cortech Board  determined
to change  control of Cortech,  it should have sought  competitive  transactions
more  aggressively,  by  advertising  in the  financial  media,  by  engaging an
investment  banker from the outset to solicit Merger  partners in the investment
community and by publicly  stating that the Board was conducting an open bidding
process for control of Cortech.  If elected  Asset  Value's  nominees  will take
these steps.  But as stated above,  there can be no assurance  that taking these
steps will  produce a  transaction  that will be  favorable  for Cortech and its
stockholders.

                               STOP THE RED INK !

     Paul  Koether of Asset  Value has  suggested  publicly  that a shutdown  of
Cortech is an  appropriate  alternative  which would leave Cortech with cash and
future tax  benefits  from past losses plus the  enticement  of publicly  traded
shares  that  could be a vehicle  for a private  company  to become  public.  He
recognizes   that  there  would  be  risks   associated  with  such  an  action,
particularly  that  Cortech  would no longer be an  "ongoing"  business  and the
possible  reduction  in the  value  of the  technology  because  of the  loss of
experienced  personnel.  In any event,  Asset  Value would  evaluate  the matter
further with  current  employees if it gained  control,  therefore,  there is no
assurance that Cortech would be shut down.

     Asset Value can only give stockholders the assurance that its nominees will
try to further reduce Cortech's expenses and will move as quickly as possible to
secure a Merger  partner,  which  they  believe  maximizes  stockholder  values.
Remember  Asset  Value  has  promised  not to seek to  merge  Cortech  with  any
affiliate or entity in which Asset Value is an investor.  Asset Value intends to
benefit from its Cortech  investment only to the same extent other  stockholders
benefit.  Asset Value's nominees have pledged not to accept any fees for serving
as directors.

                             IT'S TIME FOR A CHANGE.
                                VOTE FOR CHANGE.
                              VOTE FOR ASSET VALUE.

           "WHO CARES WHAT OWNERS THINK? Who owns American companies?
   The management, of course. Shareholders are tolerated, but managers rule.6"

                THE CORTECH BOARD ACTS LIKE ITS VOICE IS THE ONLY
                                     CHOICE.
- --------
     5   H.G. Wells

     6   Market Watch, New York Times 3/8/98, Floyd Norris.  This quote has been
made without the permission of the New York Times or Mr. Norris.


<PAGE>


     But we  stockholders  can  demonstrate  that they are wrong. We urge you to
read our enclosed  Proxy  Statement and vote YES to increasing the Board and FOR
Asset Value's nominees.

                                            Sincerely,
                                            Paul O. Koether
                                            Asset Value Fund Limited Partnership


                          SEND IN THE WHITE PROXY CARD
                         VOTE YES TO INCREASE THE BOARD
                     VOTE FOR ALL OF ASSET VALUE'S NOMINEES


                                    IMPORTANT

     If your shares are held in "Street  Name" only your bank or broker can vote
your shares, and only upon receipt of your specific instructions. Please contact
the person  responsible  for your account and  instruct  them to execute a white
proxy card as soon as possible.

     If you have any questions or need further assistance in voting, please call
John W. Galuchie,  Jr., of Asset Value Fund Limited Partnership collect at (908)
234-1881, or our proxy solicitor:

                           BEACON HILL PARTNERS, INC.
                                 90 BROAD STREET
                            NEW YORK, NEW YORK 10004
                                 (800) 253-3814

    



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