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                                 UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                  SCHEDULE 13G

                   Under the Securities Exchange Act of 1934

                              (Amendment No. ___)*



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



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



                                   09061H 30 7
--------------------------------------------------------------------------------
                                 (CUSIP Number)



                                February 28, 2003
--------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of This Statement)


         Check the appropriate box to designate the rule pursuant to which this
schedule is filed:

                   [ ]   Rule 13d-1(b)

                   [ ]   Rule 13d-1(c)

                   [X]   Rule 13d-1(d)

* 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 the
disclosures provided in a prior cover page.

The information required in 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.


                                  Page 1 of 5


CUSIP No. 09061H 30 7                  13G                     Page 2 of 5 Pages

--------------------------------------------------------------------------------
1.   Name of Reporting Persons
         Joseph L. Rink
     S.S. or I.R.S. Identification Nos. of Above Persons     570-86-48__
--------------------------------------------------------------------------------
2.   Check the Appropriate Box If a Member of a Group (See Instructions)
     (a)  [_]
     (b)  [_]
--------------------------------------------------------------------------------
3.   SEC Use Only
--------------------------------------------------------------------------------
4.   Citizenship or Place of Organization
         USA
--------------------------------------------------------------------------------
               5.   Sole Voting Power
  NUMBER OF         332,956
   SHARES      -----------------------------------------------------------------
BENEFICIALLY   6.   Shared Voting Power
  OWNED BY          
    EACH       -----------------------------------------------------------------
  REPORTING    7.   Sole Dispositive Power
   PERSON           
    WITH:      -----------------------------------------------------------------
               8.   Shared Dispositive Power
                    
--------------------------------------------------------------------------------
9.   Aggregate Amount Beneficially Owned by Each Reporting Person
         332,956
--------------------------------------------------------------------------------
10.  Check Box If the Aggregate Amount in Row (9) Excludes Certain Shares
     (See Instructions)                                                 [_]
--------------------------------------------------------------------------------
11.  Percent of Class Represented by Amount in Row (9)
         5.7%
--------------------------------------------------------------------------------
12.  Type of Reporting Person (See Instructions)
         IN
--------------------------------------------------------------------------------



CUSIP No. 09061H 30 7                  13G                     Page 3 of 5 Pages

--------------------------------------------------------------------------------
Item 1(a).  Name of Issuer:
                  Biomerica, Inc.

--------------------------------------------------------------------------------
Item 1(b).  Address of Issuer's Principal Executive Offices:
                  1533 Monrovia Ave., Newport Beach, CA 92663

--------------------------------------------------------------------------------
Item 2(a).  Name of Person Filing:
                  Joseph L. Rink

--------------------------------------------------------------------------------
Item 2(b).  Address of Principal Business Office, or if None, Residence:
                  1533 Monrovia Ave., Newport Beach, CA 92663

--------------------------------------------------------------------------------
Item 2(c).  Citizenship:
                  USA

--------------------------------------------------------------------------------
Item 2(d).  Title of Class of Securities:
                  Common Stock

--------------------------------------------------------------------------------
Item 2(e).  CUSIP Number:
                  09061H 30 7

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

ITEM 3.  IF THIS STATEMENT IS FILED PURSUANT TO SS.240.13d-1(b) OR 240.13d-2(b)
         OR (c), CHECK WHETHER THE PERSON FILING IS A:

         (a) [ ]   Broker or dealer registered under Section 15 of the Act (15
                   U.S.C. 78o).
                
         (b) [ ]   Bank as defined in Section 3(a)(6) of the Act (15 U.S.C.
                   78c).
                
         (c) [ ]   Insurance company as defined in Section 3(a)(19) of the Act
                   (15 U.S.C. 78c).
                
         (d) [ ]   Investment company registered under Section 8 of the
                   Investment Company Act of 1940 (15 U.S.C. 80a-8).
                
         (e) [ ]   An investment adviser in accordance with
                   ss.240.13d-1(b)(1)(ii)(E);
                
         (f) [ ]   An employee benefit plan or endowment fund in accordance with
                   ss.240.13d-1(b)(1)(ii)(F);
                
         (g) [ ]   A parent holding company or control person in accordance with
                   ss.240.13d-1(b)(1)(ii)(G);
                
         (h) [ ]   A savings associations as defined in Section 3(b) of the
                   Federal Deposit Insurance Act (12 U.S.C. 1813);
                
         (i) [ ]   A church plan that is excluded from the definition of an
                   investment company under section 3(c)(14) of the Investment
                   Company Act of 1940 (15 U.S.C. 80a-3);
                
         (j) [ ]   Group, in accordance with ss.240.13d-1(b)(1)(ii)(J).
             



CUSIP No. 09061H 30 7                  13G                     Page 4 of 5 Pages

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

ITEM 4. OWNERSHIP.

Provide the following information regarding the aggregate number and percentage
of the class of securities of the issuer identified in Item 1.

         (a)      Amount beneficially owned: 332,956

         (b)      Percent of class: 5.7%

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

                  (i)      Sole power to vote or to direct the vote 332,956

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

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

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

INSTRUCTION. For computations regarding securities which represent a right to
acquire an underlying security SEE ss.240.13d3(d)(1).

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


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


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


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


--------------------------------------------------------------------------------
ITEM 9.  NOTICE OF DISSOLUTION OF GROUP.


--------------------------------------------------------------------------------
ITEM 10. CERTIFICATIONS.

     (a)  The following certification shall be included if the statement is
          filed pursuant to Rule 13d-1(b):

          "By signing below I certify that, to the best of my knowledge and
          belief, the securities referred to above were acquired and are held in
          the ordinary course of business and were not acquired and not held for
          the purpose of or with the effect of changing or influencing the
          control of the issuer of the securities and were not acquired and are
          not held in connection with or as a participant in any transaction
          having such purpose or effect."


     (b)  The following certification shall be included if the statement is
          filed pursuant to Rule 13d-1(c):

          "By signing below I certify that, to the best of my knowledge and
          belief, the securities referred to above were not acquired and are not
          held for the purpose of or with the effect of changing or influencing
          the control of the issuer of the securities and were not acquired and
          are not held in connection with or as a participant in any transaction
          having such purpose or effect."




CUSIP No. 09061H 30 7                  13G                     Page 5 of 5 Pages

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

                                    SIGNATURE

         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.


                                                           February 10, 2005   
                                                      -------------------------
                                                               (Date)          
                                                                               
                                                                               
                                                         /S/ JOSEPH L. RINK
                                                      -------------------------
                                                             (Signature)       
                                                                               
                                                                               
                                                           JOSEPH L. RINK
                                                      -------------------------
                                                            (Name/Title)       


Note. Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7(b) for other
parties for whom copies are to be sent.

Attention. Intentional misstatements or omissions of fact constitute federal
criminal violations (see 18 U.S.C. 1001).