Appellate Court Affirms PTSC's Technology Litigation Suit

SAN DIEGO--(BUSINESS WIRE)--June 12, 2003--PTSC (Patriot Scientific Corporation) (OTCBB:PTSC - News) today announced the Fourth Appellate Court, Division One, of the State of California has affirmed the judgment issued by the trial court in 2000 which ruled in favor of PTSC on all counts in the case of Fish vs. nanoTronics, Patriot and Gloria Felcyn, Trustee. The lawsuit, which was brought by one of the co-inventors of the ShBoom technology, the predecessor technology to the IGNITE, sought a judgment for damages and a restoration of the technology to the co-inventor.

Jeff Wallin, PTSC's president and CEO, stated, "The appellate court's opinion brings to a satisfactory conclusion seven years of litigation and removes any cloud of ownership that may have hung over our technology. We can now aggressively pursue our objective of enforcing our rights against potential infringers of this unique and far reaching technology."

About PTSC
Founded in 1987, PTSC is an Intellectual Property (IP); Integrated Circuit (IC) and systems level embedded engineering company. The company sells the IGNITE(TM) processor in silicon both in the United States and abroad. Customers also come to PTSC for product integration and development using the IGNITE technology. For further information on PTSC, visit http://www.ptsc.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.