Patriot Scientific (PTSC) Files Additional Patent Infringement Lawsuits

-- 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 and architecture.

For more information please visit Patriot Scientific online at www.ptsc.com
For investor relations information contact Frank Hawkins or Julie Marshall, Hawk Associates, at (305) 852-2383. Email: info@hawkassociates.com For Patriot Scientific information contact Lowell Giffhorn at (858) 674-5018. Detailed information about Patriot Scientific can be found on the website www.ptsc.com. Copies of Patriot Scientific press releases, current price quotes, stock charts and other valuable information for investors may be found on the website www.hawkassociates.com.

Safe Harbor statement under the Private Securities Litigation Reform Act of 1995: Statements in this news release looking forward in time involve risks and uncertainties, including the risks associated with the effect of changing economic conditions, trends in the products markets, variations in the company's cash flow, market acceptance risks, technical development risks, seasonality and other risk factors detailed in the company's Securities and Exchange Commission filings.