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Patriot Scientific Provides Details of Share Buyback

CARLSBAD, Calif. – September 27, 2007 – Patriot Scientific (OTC Bulletin Board: PTSC) announced today that the company has recently purchased shares of its common stock on the open market. The purchases were part of a previously announced program in which the company has said that it plans to repurchase shares of the company’s outstanding common stock from time to time.

Patriot Scientific President and CEO Jim Turley said, “Patriot Scientific, which is a highly profitable company with no debt and approximately $22 million in cash on hand at the end of FY 2007, is by any reasonable measure that I know of substantially undervalued. The company’s common stock is trading well below what we would regard as an appropriate multiple of earnings. We have taken advantage of this decline in the price of our stock to purchases shares at a price we deem to be strongly in the interests of our shareholders.”

Turley said, “We continue to be extremely positive about Patriot Scientific and its future prospects. So far 23 companies have licensed our company’s valuable patent portfolio. More than 300 other companies are on notice concerning their violation of our patents. As we have previously pointed out, the strength of the portfolio was underscored in the June 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.”

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.

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, patent litigation, technical development risks, seasonality and other risk factors detailed in the company's Securities and Exchange Commission filings.

PTSC is a trademark of Patriot Scientific Corporation. All other trademarks belong to their respective owners.

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