EXHIBIT 5.1

                      THE LAW OFFICES OF MICHAEL L. CORRIGAN
                               MICHAEL L. CORRIGAN
                                 ATTORNEY AT LAW
                           CITY NATIONAL BANK BUILDING
                              4275 EXECUTIVE SQUARE
                             SECOND FLOOR, SUITE 210
                           LA JOLLA, CALIFORNIA 92037
                   OFFICE: (858) 731-0044 FAX: (858) 731-0045



OCTOBER 29, 2002

PATRIOT SCIENTIFIC CORPORATION

RE: OPINION OF COUNSEL - REGISTRATION STATEMENT ON FORM S-8

GENTLEMAN:

I HAVE ACTED AS COUNSEL FOR PATRIOT SCIENTIFIC CORPORATION (THE "COMPANY"), IN
CONNECTION WITH THE PREPARATION AND FILING OF THE COMPANY'S REGISTRATION
STATEMENT ON FORM S-8 UNDER THE SECURITIES ACT OF 1933, AS AMENDED, (THE
"REGISTRATION STATEMENT"), RELATING TO 2,000,000 SHARES OF THE COMPANY'S COMMON
STOCK, .00001 PAR VALUE, (THE "COMMON STOCK"), ISSUABLE PURSUANT TO THE
COMPANY'S ADVISORY AND CONSULTANTS AGREEMENT, (THE "PLAN").

I HAVE EXAMINED THE CERTIFICATE OF INCORPORATION, AS AMENDED, AND THE BY-LAWS OF
THE COMPANY AND ALL AMENDMENTS THERETO, THE REGISTRATION STATEMENT AND
ORIGINALS, OR COPIES CERTIFIED TO MY SATISFACTION, OF SUCH RECORDS AND MEETINGS,
WRITTEN ACTIONS IN LIEU OF MEETINGS, OR RESOLUTIONS ADOPTED AT MEETINGS, OF THE
DIRECTORS OF THE COMPANY, AND SUCH OTHER DOCUMENTS AND INSTRUMENTS AS IN MY
JUDGMENT ARE NECESSARY OR APPROPRIATE TO ENABLE ME TO RENDER THE OPINIONS
EXPRESSED BELOW.

BASED ON THE FOREGOING EXAMINATION, I AM OF THE OPINION THAT THE SHARES OF
COMMON STOCK ISSUABLE WITH THE PLAN ARE DULY AUTHORIZED AND, WHEN ISSUED IN
ACCORDANCE WITH THE PLAN, WILL BE VALIDLY ISSUED, FULLY PAID AND NON-ASSESSABLE.

FURTHER, I CONSENT TO THE FILING OF THIS OPINION AS AN EXHIBIT TO THE
REGISTRATION STATEMENT.


VERY TRULY YOURS,


/S/ MICHAEL L. CORRIGAN
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MICHAEL L CORRIGAN