Patriot Scientific Momentum Continues as SanDisk Purchases Moore Microprocessor Patent(TM) Portfolio License

CARLSBAD, Calif., March 9, 2007 -- Patriot Scientific Corporation (OTC Bulletin Board: PTSC) confirmed today that SanDisk, the world's largest supplier of flash storage card products, has purchased a Moore Microprocessor Patent(TM) (MMP) Portfolio license. Patriot Scientific and The TPL Group are co-owners of the MMP Portfolio, which Alliacense, a TPL Group enterprise, exclusively manages.

SanDisk is the 15th company to join the distinguished roster of global manufacturers that have captured early-mover MMP licensing berths in specific industry segments since January 2006. Alliacense again confirmed that subsequent licensees in segments where early tiers have been secured are subject to progressively higher royalty rates on relevant products.

The intellectual property assets protected by the MMP Portfolio encompass fundamental design techniques that enable higher performance and lower cost digital electronic systems ranging from cell phones and portable music players to communications infrastructure and medical equipment as well as automobiles, which today utilize dozens of microprocessors.

"As a co-owner of the MMP Portfolio we are pleased to welcome SanDisk to the growing family of companies participating in the MMP Portfolio Licensing Program," said David Pohl, chairman and CEO of Patriot Scientific Corporation. He noted that HP, Casio, Fujitsu, Sony, Nikon, Seiko Epson, Pentax, Olympus, Kenwood, Agilent, Lexmark, Schneider Electric, NEC Corporation and Funai Electric have purchased MMP Portfolio licenses in the past 13 months. Intel and AMD are also licensees.

Pohl noted that the strong momentum of the licensing program validates the decision by Patriot's board of directors in June 2005 to shift the company's primary business model from manufacturing and marketing products to a model currently focused on licensing their joint venture MMP patent portfolio. He emphasized that Patriot Scientific invested millions of dollars and hundreds of thousands of man-hours over 12 years or more developing and bringing to market products based upon the company's intellectual property, including IP contained in the MMP Portfolio.

About SanDisk

SanDisk is the original inventor of flash storage cards and is the world's largest supplier of flash data storage card products using its patented, high- density flash memory and controller technology. SanDisk is headquartered in Milpitas, Calif., and has operations worldwide with more than half its sales outside the U.S. For additional information, visit http://www.sandisk.com.

About Patriot Scientific

Patriot Scientific is a leading intellectual property licensing company that develops, markets and enables innovative technologies to address the demands in fast-growing markets such as wireless devices, smart cards, home appliances and gateways, set-top boxes, entertainment technology, automotive telematics, biomedical devices and industrial controllers. Headquartered in Carlsbad, Calif., information about the company can be found at http://www.ptsc.com

About the Patent Portfolio

The patent portfolio, marketed as the Moore Microprocessor Patent(TM) Portfolio, is jointly owned by the 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 fundamental to the design of modern microprocessors, microcontrollers, Digital Signal Processors (DSPs), embedded processors and System-on-Chip (SoC) implementations.

About Alliacense

Alliacense is a TPL Group Enterprise executing best-in-class design and implementation of Intellectual Property (IP) licensing programs. As a cadre of IP licensing strategists, technology experts, and experienced business development /management executives, Alliacense focuses on expanding the awareness and value of TPL's IP portfolios. Founded in 1988, The TPL Group has emerged as a global coalition of high technology enterprises involved in the development, management and commercialization of IP assets as well as the design, manufacture and sales of proprietary products based on these same IP assets. For more information, visit http://www.alliacense.com.