Patriot Scientific Names Richard J. Corrigan Vice President of Product Management

SAN DIEGO--(BUSINESS WIRE)--May 13, 2005--Patriot Scientific Corporation (OTC Bulletin Board: PTSC - News) announced today that it has named Richard J. Corrigan as vice president of product management.

Corrigan is a specialist in data communications and telecommunications, over wireline, wireless and HFC media. His technical skills include expertise in voice signaling, data protocols, distributed network architectures and embedded systems. He has prolific design and development experience using various programming languages and embedded assemblers for a wide range of operating systems. He is also the author of a number of patented technologies.

Jeff Wallin, president and CEO of Patriot Scientific, said, "Rich is a multi-faceted leader whose technical, marketing and management skills have resulted in large account deployments, unique solutions and pioneering ideas. He has a proven track record of significant accomplishments in leading edge technologies. We are delighted to welcome him to Patriot."

Before coming to Patriot, Corrigan was global account manager for REMEC, a OEM supplier of RF equipment, responsible for growing the business six fold in key accounts from 2002 to 2004. Before that, he started and directed systems engineering teams for Copper Mountain Networks, Ensemble Communications and IP Unity. He spent over 15 years with Motorola and also worked for Rockwell International as a member of their technical staffs responsible for system architectures and emerging technologies.

Corrigan has M.S. in computer science from De Paul University in Chicago, B.S. in computer science and B.S. in marketing from Northern Illinois University in De Kalb, Ill.

About Patriot Scientific

Patriot Scientific is an intellectual property company, developing and marketing innovative and proprietary semiconductor technologies into the fast-growing handheld 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.

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 websites www.hawkassociates.com and www.hawkmicrocaps.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.