SAN DIEGO, Calif., Dec. 24 /PRNewswire-FirstCall/ -- Patriot Scientific Corporation (OTC Bulletin

Board: PTSC - News) announced today that the company has filed additional lawsuits against

Fujitsu (U.S. District Court for the Northern District of California - Case number C 03 5787 WDB),

Toshiba (U.S. District Court for the Southern District of New York - Case number 03 CV 10180

(DAB) and NEC (U.S. District Court for the Eastern District of New York, Central Islip Branch -

Case number 03 CV 6432 (JS)) in an effort to protect its patent rights relating to Patent No.

5,809,336 - "High Performance Microprocessor Having Variable Speed System Clock".

"These actions coupled with the filing of a lawsuit against Sony on December 22, 2003 represent

the beginning of a significantly expanding effort to protect the rights of the PTSC microprocessor

patent portfolio," stated Jeff Wallin, president and CEO of PTSC.

The initial filings are seeking damages in excess of several hundred million dollars.

An investment profile on Patriot Scientific may be found at

www.hawkassociates.com/patriot/profile.htm.

About Patriot Scientific

Patriot Scientific is an intellectual property company developing and marketing innovative and

proprietary semiconductor technologies into the fast- growing hand held wireless and smart card

markets. The company's portfolio of patents encompasses what is believed to be fundamental

microprocessor technology and includes additional patents pending to protect its technology.

http://www.patriotscientific.com/news/press_releases/pr20031224.pdf