U S VENTURE PARTNERS III
SC 13G, 1997-02-11
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  Schedule 13G
                                 (Rule 13d-102)

             INFORMATION STATEMENT PURSUANT TO RULES 13d-1 AND 13d-2
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                       (Amendment No. 2 and Restatement)*



                                 Maritech, Inc.
- --------------------------------------------------------------------------------
                                (Name of Issuer)


                                  Common Stock
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                    576818108
- --------------------------------------------------------------------------------
                                 (CUSIP Number)




*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).

                         (Continued on following pages)






                               Page 1 of 12 Pages
                       Exhibit Index Contained on Page 10

<PAGE>
<TABLE>
<CAPTION>

- --------------------------------------------------------                     ---------------------------------------
CUSIP NO. 576818108                                             13 G                   Page 2 of 12 Pages
- --------------------------------------------------------                     ---------------------------------------

- ----------- --------------------------------------------------------------------------------------------------------
<S>         <C>                      <C>                                           <C>              <C>

1           NAME OF REPORTING PERSONS
            SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
                     U.S. Venture Partners III, A California Limited partnership ("USVP III")
                     ID Number:        94-3038926
- ----------- --------------------------------------------------------------------------------------------------------

2           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                                   (a)  [ ]         (b)  [X]
- ----------- --------------------------------------------------------------------------------------------------------

3           SEC USE ONLY
- ----------- --------------------------------------------------------------------------------------------------------

4           CITIZENSHIP OR PLACE OF ORGANIZATION
                     California
- ----------- --------------------------------------------------------------------------------------------------------

                                    5        SOLE VOTING POWER
            NUMBER OF                        0 Shares
              SHARES
           BENEFICIALLY
     OWNED BY EACH REPORTING
              PERSON
               WITH
                                    -------- -----------------------------------------------------------------------

                                    6        SHARED VOTING POWER
                                             See response to Row 5.
                                    -------- -----------------------------------------------------------------------

                                    7        SOLE DISPOSITIVE POWER
                                             0 Shares
                                    -------- -----------------------------------------------------------------------

                                    8        SHARED DISPOSITIVE POWER
                                             See response to Row 7.
- ----------------------------------- -------- -----------------------------------------------------------------------

9           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
            REPORTING PERSON                      0 Shares
- ----------- --------------------------------------------------------------------------------------------------------

10          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
            EXCLUDES CERTAIN SHARES*                                                                [ ]
- ----------- --------------------------------------------------------------------------------------------------------

11          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
            0.0%
- ----------- --------------------------------------------------------------------------------------------------------

12          TYPE OF REPORTING PERSON*
            PN
- ----------- --------------------------------------------------------------------------------------------------------

                           *   SEE INSTRUCTIONS BEFORE FILLING OUT!
</TABLE>

<PAGE>
<TABLE>
<CAPTION>

- --------------------------------------------------------                     ---------------------------------------
CUSIP NO. 576818108                                             13 G                   Page 3 of 12 Pages
- --------------------------------------------------------                     ---------------------------------------

- ----------- --------------------------------------------------------------------------------------------------------
<S>         <C>                      <C>                                           <C>              <C>

1           NAME OF REPORTING PERSONS
            SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
                     U.S.V. Entrepreneur Partners, A California Limited partnership ("USVEP")
                     ID Number:        94-3050240
- ----------- --------------------------------------------------------------------------------------------------------

2           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                                   (a)  [ ]         (b)  [X]
- ----------- --------------------------------------------------------------------------------------------------------

3           SEC USE ONLY
- ----------- --------------------------------------------------------------------------------------------------------

4           CITIZENSHIP OR PLACE OF ORGANIZATION
                     California
- ----------- --------------------------------------------------------------------------------------------------------

                                    5        SOLE VOTING POWER
            NUMBER OF                        0 Shares
              SHARES
           BENEFICIALLY
     OWNED BY EACH REPORTING
              PERSON
               WITH
                                    -------- -----------------------------------------------------------------------

                                    6        SHARED VOTING POWER
                                             See response to Row 5.
                                    -------- -----------------------------------------------------------------------

                                    7        SOLE DISPOSITIVE POWER
                                             0 Shares
                                    -------- -----------------------------------------------------------------------

                                    8        SHARED DISPOSITIVE POWER
                                             See response to Row 7.
- ----------------------------------- -------- -----------------------------------------------------------------------

9           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
            REPORTING PERSON                      0 Shares
- ----------- --------------------------------------------------------------------------------------------------------

10          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
            EXCLUDES CERTAIN SHARES*                                                                [ ]
- ----------- --------------------------------------------------------------------------------------------------------

11          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
            0.0%
- ----------- --------------------------------------------------------------------------------------------------------

12          TYPE OF REPORTING PERSON*
            PN
- ----------- --------------------------------------------------------------------------------------------------------

                           *   SEE INSTRUCTIONS BEFORE FILLING OUT!
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
- --------------------------------------------------------                     ---------------------------------------
CUSIP NO. 576818108                                             13 G                   Page 4 of 12 Pages
- --------------------------------------------------------                     ---------------------------------------

- ----------- --------------------------------------------------------------------------------------------------------
<S>         <C>                      <C>                                           <C>              <C>

1           NAME OF REPORTING PERSONS
            SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
                     Second Ventures Limited Partnership ("SVLP")
                     ID Number:        94-3060758
- ----------- --------------------------------------------------------------------------------------------------------

2           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                                   (a)  [ ]         (b)  [X]
- ----------- --------------------------------------------------------------------------------------------------------

3           SEC USE ONLY
- ----------- --------------------------------------------------------------------------------------------------------

4           CITIZENSHIP OR PLACE OF ORGANIZATION
                     Panama
- ----------- --------------------------------------------------------------------------------------------------------

                                    5        SOLE VOTING POWER
            NUMBER OF                        0 Shares
              SHARES
           BENEFICIALLY
     OWNED BY EACH REPORTING
              PERSON
               WITH
                                    -------- -----------------------------------------------------------------------
 
                                    6        SHARED VOTING POWER
                                             See response to Row 5.
                                    -------- -----------------------------------------------------------------------

                                    7        SOLE DISPOSITIVE POWER
                                             0 Shares
                                    -------- -----------------------------------------------------------------------

                                    8        SHARED DISPOSITIVE POWER
                                             See response to Row 7.
- ----------------------------------- -------- -----------------------------------------------------------------------

9           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
            REPORTING PERSON                      0 Shares
- ----------- --------------------------------------------------------------------------------------------------------

10          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
            EXCLUDES CERTAIN SHARES*                                                                [ ]
- ----------- --------------------------------------------------------------------------------------------------------

11          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
            0.0%
- ----------- --------------------------------------------------------------------------------------------------------

12          TYPE OF REPORTING PERSON*
            PN
- ----------- --------------------------------------------------------------------------------------------------------

                           *   SEE INSTRUCTIONS BEFORE FILLING OUT!
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

- --------------------------------------------------------                     ---------------------------------------
CUSIP NO. 576818108                                             13 G                   Page 5 of 12 Pages
- --------------------------------------------------------                     ---------------------------------------

- ----------- --------------------------------------------------------------------------------------------------------
<S>         <C>                      <C>                                           <C>              <C>

1           NAME OF REPORTING PERSONS
            SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
                     BHMS Partners III, A California Limited Partnership ("BHMS III")
                     ID Number:        94-3038927
- ----------- --------------------------------------------------------------------------------------------------------

2           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                                   (a)  [ ]         (b)  [X]
- ----------- --------------------------------------------------------------------------------------------------------

3           SEC USE ONLY
- ----------- --------------------------------------------------------------------------------------------------------

4           CITIZENSHIP OR PLACE OF ORGANIZATION
                     California
- ----------- --------------------------------------------------------------------------------------------------------

                                    5        SOLE VOTING POWER
            NUMBER OF                        0 Shares
              SHARES
           BENEFICIALLY
     OWNED BY EACH REPORTING
              PERSON
               WITH
                                    -------- -----------------------------------------------------------------------

                                    6        SHARED VOTING POWER
                                             0 Shares
                                    -------- -----------------------------------------------------------------------

                                    7        SOLE DISPOSITIVE POWER
                                             0 Shares
                                    -------- -----------------------------------------------------------------------

                                    8        SHARED DISPOSITIVE POWER
                                             0 Shares
- ----------------------------------- -------- -----------------------------------------------------------------------

9           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
            REPORTING PERSON                      0 Shares
- ----------- --------------------------------------------------------------------------------------------------------

10          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
            EXCLUDES CERTAIN SHARES*                                                                [ ]
- ----------- --------------------------------------------------------------------------------------------------------

11          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
            0.0%
- ----------- --------------------------------------------------------------------------------------------------------

12          TYPE OF REPORTING PERSON*
            PN
- ----------- --------------------------------------------------------------------------------------------------------

                           *   SEE INSTRUCTIONS BEFORE FILLING OUT!
</TABLE>
<PAGE>

                                                                    Page 6 of 12

         This  statement is an amendment  and  restatement  of the  Statement on
Schedule 13(G) (the "Original  Statement") filed by U.S. Venture Partners III, A
California  Limited  Partnership,  Second Ventures Limited  Partnership,  U.S.V.
Entrepreneur Partners, A California Limited Partnership,  and BHMS Partners III,
A California Limited Partnership (the "Reporting Persons").

ITEM 1(a).        NAME OF ISSUER:

                  Maritech, Inc.

ITEM 1(b).        ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:

                  763 Concord Avenue
                  Cambridge, MA  02138

ITEM 2(a).        NAME OF PERSONS FILING:

                  This  Statement  is  filed by U.S.  Venture  Partners  III,  A
California Limited Partnership ("USVP III"),  U.S.V.  Entrepreneur  Partners,  A
California Limited Partnership ("USVEP"), Second Ventures Limited Partnership, a
Panama Limited Partnership  ("SVLP") and BHMS Partners III, A California Limited
Partnership ("BHMS III"). The foregoing entities are collectively referred to as
the "Reporting Persons.

                  BHMS III is the general  partner of USVP III,  USVEP and SVLP,
and may be deemed to have  shared  power to vote and shared  power to dispose of
shares of the issuer directly owned by USVP III, USVEP and SVLP.

ITEM 2(b).        ADDRESS OF PRINCIPAL BUSINESS OFFICE, OR, IF NONE, RESIDENCE:

                  The address for each of the Reporting Persons is:

                  2180 Sand Hill Road, Suite 300
                  Menlo Park, CA  94025

ITEM 2(c)         CITIZENSHIP:

                  USVP  III,   USVEP  and  BHMS  III  are   California   Limited
                  Partnerships and SVLP is a Panama Limited Partnership.

ITEM 2(d).        TITLE OF CLASS OF SECURITIES:

                  Common Stock
<PAGE>
                                                                    Page 7 of 12

ITEM 2(e).        CUSIP NUMBER:

                  CUSIP # 576818108

ITEM 3.           Not Applicable

ITEM 4.           OWNERSHIP:

                  The following information with respect to the ownership of the
                  Common  Stock  of  the  issuer  by  the  persons  filing  this
                  Statement is provided as of December 31, 1996:

                           (a)     Amount beneficially owned:

                                   See Row 9 of cover  pages for each  Reporting
                                   Person.

                           (b)     Percent of Class:

                                   See Row 11 of cover pages for each  Reporting
                                   Person.

                           (c)     Number of shares as to which such person has:

                                             (i)     Sole  power  to  vote or to
                                                     direct the vote:

                                                     See  Row 5 of  cover  pages
                                                     for each Reporting Person.

                                             (ii)    Shared  power to vote or to
                                                     direct the vote:

                                                     See  Row 6 of  cover  pages
                                                     for each Reporting Person.

                                             (iii)   Sole power to dispose or to
                                                     direct the disposition of:

                                                     See  Row 7 of  cover  pages
                                                     for each Reporting Person.

                                             (iv)    Shared  power to dispose or
                                                     to direct  the  disposition
                                                     of:

                                                     See  Row 8 of  cover  pages
                                                     for each Reporting Person.


<PAGE>

                                                                    Page 8 of 12

ITEM 5.         OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS:

                If this  statement  is being filed to report the fact that as of
                the date  hereof  the  reporting  person  has  ceased  to be the
                beneficial  owner of more  than  five  percent  of the  class of
                securities, check the following: [X] Yes

ITEM 6.         OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON:

                Not applicable.


ITEM 7.         IDENTIFICATION  AND  CLASSIFICATION  OF  THE  SUBSIDIARY   WHICH
                ACQUIRED THE SECURITY  BEING  REPORTED ON BY THE PARENT  HOLDING
                COMPANY:

                Not applicable.

ITEM 8.         IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP:

                Not applicable

ITEM 9.         NOTICE OF DISSOLUTION OF GROUP:

                Not applicable

ITEM 10.        CERTIFICATION:

                Not applicable



<PAGE>

                                                                    Page 9 of 12

                                   SIGNATURES



                  After  reasonable  inquiry and to the best of my knowledge and
belief,  I certify  that the  information  set forth in this  statement is true,
complete and correct.

Date:  January 29, 1997

U.S. Venture Partners III              /s/ Michael P. Maher
A California Limited Partnership       --------------------------------------- 
By BHMS Partners III                   Signature                               
A California Limited Partnership                                               
Its General Partner                    Michael P. Maher                        
                                       Chief Financial Officer/Attorney-In-Fact
                                                                               
                                       

Second Ventures Limited Partnership    /s/ Michael P. Maher
By BHMS Partners III                   ---------------------------------------
A California Limited Partnership       Signature                               
Its General Partner                                                            
                                       Michael P. Maher                        
                                       Chief Financial Officer/Attorney-In-Fact
                                                                               
                                       
BHMS Partners III,                     /s/ Michael P. Maher
A California Limited Partnership       ---------------------------------------
                                       Signature                               
                                                                               
                                       Michael P. Maher                        
                                       Chief Financial Officer/Attorney-In-Fact
                                                                               
U.S.V. Entrepreneur Partners           /s/ Michael P. Maher
A California Limited Partnership       ---------------------------------------
By BHMS Partners III,                  Signature           
A California Limited Partnership
Its General Partner                    Michael P. Maher    
                                       Chief Financial Officer/Attorney-In-Fact



<PAGE>

                                                                   Page 10 of 12


                                  EXHIBIT INDEX


                                                                     Found on
                                                                   Sequentially
Exhibit                                                            Numbered Page
- -------                                                            -------------
Exhibit A:  Agreement of Joint Filing                                   11

Exhibit B:  Reference to Michael P. Maher as Attorney-in-Fact           12





<PAGE>

                                                                   Page 11 of 12


                                    EXHIBIT A



                            Agreement of Joint Filing

                  The  undersigned  hereby agree that a single  Schedule 13G (or
any amendment  thereto) relating to the Common Stock of Maritech,  Inc. shall be
filed on behalf of each of the  undersigned  and that  this  Agreement  shall be
filed as an Exhibit to such Schedule 13G.

                  This Agreement and the filing of the Schedule 13G shall not be
construed  to be an  admission  that any of the  undersigned  are  members  of a
"group"  consisting of one or more of such persons  pursuant to Section 13(g) of
the Securities Exchange Act of 1934, as amended, and the rules thereunder.


Date:  February 10, 1995

U.S. Venture Partners III              /s/ Michael P. Maher
A California Limited Partnership       --------------------------------------- 
By BHMS Partners III                   Signature                               
A California Limited Partnership                                               
Its General Partner                    Michael P. Maher                        
                                       Chief Financial Officer/Attorney-In-Fact
                                       


Second Ventures Limited Partnership    /s/ Michael P. Maher
By BHMS Partners III                   ---------------------------------------
A California Limited Partnership       Signature                               
Its General Partner                                                            
                                       Michael P. Maher                        
                                       Chief Financial Officer/Attorney-In-Fact
                                       
U.S.V. Entrepreneur Partners           /s/ Michael P. Maher
A California Limited Partnership       ---------------------------------------
By BHMS Partners III,                  Signature                               
A California Limited Partnership       
Its General Partner                    Michael P. Maher                        
                                       Chief Financial Officer/Attorney-In-Fact

                                       /s/ Michael P. Maher
                                       ---------------------------------------
                                       Signature                               
                                               
                                       Michael P. Maher                        
BHMS Partners III,                     Chief Financial Officer/Attorney-In-Fact
A California Limited Partnership                                       


<PAGE>

                                                                   Page 12 of 12


                                    EXHIBIT B

                 REFERENCE TO MICHAEL MAHER AS ATTORNEY-IN-FACT



                  Michael  P.  Maher  has  signed  the  enclosed   documents  as
Attorney-In-Fact.  Note that copies of the  applicable  Power of  Attorneys  are
already on file with the appropriate agencies.





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