Denso Wave Becomes 23rd Licensee of Patriot Scientific Patents

CARLSBAD, Calif. – Sept. 11, 2007 – Patriot Scientific (OTC Bulletin Board: PTSC) announced today that Denso Wave Incorporated has purchased a license for the company's microprocessor-related patent portfolio. Headquartered in Tokyo, Denso Wave becomes the 23rd licensee of the company's valuable portfolio and the third licensee in two weeks.

"We're gratified that our chip technology is being so widely adopted by such a broad cross-section of the industry," said Patriot Scientific CEO Jim Turley. "From Denso Wave's industrial robots and data-capture equipment to our other licensees' consumer and computer products, it's clear we're providing real value."

The strength of the company's patent portfolio was underscored by the June 15, 2007 Markman ruling by the U.S. District Court in the Eastern District of Texas. The patents describe valuable techniques for improving chip speed, reducing power consumption and improving performance, all of which are interesting and useful to systems and semiconductor manufacturers worldwide.

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

An investment profile on Patriot Scientific may be found at http://www.hawkassociates.com/ptscprofile.aspx. Copies of Patriot Scientific press releases, current price quotes, stock charts and other valuable information for investors may be found at http://www.hawkassociates.com and http://www.americanmicrocaps.com. To receive free e-mail notification of future releases for Patriot Scientific, sign up at http://www.hawkassociates.com/email.aspx.

About Denso Wave
Headquartered in Tokyo, Denso Wave Incorporated specializes in the development, manufacture and sales of automatic data-capture equipment, industrial robots, programmable controllers and related apparatus and systems. The company's mission is to enhance worldwide productivity with an expanding line of advanced automated equipment that supports product management and customer-demand forecasting as well as robots that promote factory automation and labor reduction. For more information, visit http://www.denso-wave.com/en/index.html.

About the MMP Portfolio
The Moore Microprocessor Patent (MMP) Portfolio contains intellectual property that is jointly owned by the privately held TPL Group and publicly held Patriot Scientific Corporation (OTCBB: PTSC). The portfolio includes seven U.S. patents as well as their European and Japanese counterparts. It is becoming widely recognized that these patents protect fundamental technology used in designing microprocessors, microcontrollers, digital signal processors (DSPs), embedded processors and system-on-chip (SoC) devices. The MMP portfolio is exclusively managed by Alliacense, a TPL Group Enterprise.