CARLSBAD, Calif.--(BUSINESS WIRE)--March 17, 2006--

Northern California court grants TPL`s motion to stay proceedings pending outcome of infringement proceedings against major Japanese manufacturers in Eastern District of Texas

Patriot Scientific Corporation (OTC Bulletin Board: PTSC), an intellectual property licensing company, today announced that the U.S. District Court of Northern California has stayed the declaratory judgment actions recently filed in that court against the TPL Group, a global intellectual property management company, and Patriot Scientific, et al, by major Japanese manufacturers. Further proceedings in the California actions were stayed pending outcome of TPL`s earlier-filed action against those same companies in the U.S. District Court in the Eastern District of Texas. This clears the way for the Texas court -- sometimes referred to as the ``rocket docket`` for its expeditious rulings in patent infringement cases -- to now take the lead in judging TPL`s broad-based intellectual property claims for infringement of three of the 10 patents in the Moore Microprocessor Patent(TM) (MMP) Portfolio that is jointly owned by the TPL Group and Patriot Scientific.

``This ruling puts a halt to procedural maneuvering by the Matsushita, Panasonic, JVC, Toshiba, and NEC entities,`` said Dan Leckrone, chairman of the TPL Group. Leckrone noted that the Fujitsu entities -- who were also defendants in the Texas action -- have recently purchased a license under the MMP Portfolio, and have been dismissed from the Texas and California actions.

The validity of TPL`s views regarding the scope of the MMP Portfolio has gained substantial momentum since marquee chip makers Intel and AMD purchased MMP licenses last year. Since the beginning of 2006, Hewlett-Packard, Casio Computer and Fujitsu have purchased MMP system licenses. TPL believes that the intellectual property protected by the MMP Portfolio is used in a wide variety of end-user products including personal computers, servers, workstations, home theater systems, digital TVs, video games, DVD Recorders/Players, mobile handsets and automotive electronics.

``The TPL Group continues to have our complete confidence as they proceed with their highly effective, exclusive management of our valuable jointly owned patent portfolio,`` stated David Pohl, chairman and CEO of Patriot Scientific.

About the MMP Portfolio

The patent portfolio, marketed as the Moore Microprocessor Patent(TM) Portfolio, contains intellectual property that is jointly owned by publicly held Patriot Scientific Corporation and the privately held TPL Group. The portfolio encompasses seven U.S. patents as well as their European and Japanese counterparts. Both TPL and Patriot assert that their jointly owned patents protect techniques used in designing microprocessors, microcontrollers, Digital Signal Processor (DSPs), embedded processors and System-on-Chip (SoC) implementations. The MMP Portfolio is exclusively managed by Alliacense, a TPL Group enterprise.

About Patriot Scientific

Patriot Scientific (PTSC.OB) has emerged as an effective and dynamic intellectual property licensing Company, developing and marketing innovative and proprietary semiconductor technologies. The company`s portfolio of proprietary designs encompasses fundamental microprocessor technology, as well as pending patents designed to protect Patriot`s proprietary technology. 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 at www.hawkassociates.com and www.americanmicrocaps.com. An investment profile on Patriot Scientific may be found at http://www.hawkassociates.com/patriot/profile.htm.

About The TPL Group

Founded in 1988, Silicon Valley based TPL Group has a solid track record in delivering a complete suite of intellectual property management services. In addition to optimizing IP Portfolio value and protecting assets from infringement, the TPL Group is also well versed in optimally converting portfolio value into cash return for its owner(s). Through Alliacense, a cadre of senior licensing executives, the TPL Group manages IP Licensing Programs across a broad array of industries. For more information, visit www.tplgroup.net.

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.

Alliacense, Moore Microprocessor Patent, and MMP are trademarks of Technology Properties Limited (TPL). All other trademarks belong to their respective owners.