Lexmark Purchases Moore Microprocessor Patent™ Portfolio License

CUPERTINO, CALIF. – Dec. 11,2006 – Alliacense today announced that Lexmark International Inc. (NYSE: LXK), a global supplier of printing and imaging products, has purchased rights to use technologies protected by the Moore Microprocessor Patent™ (MMP) Portfolio. Lexmark follows in the footsteps of HP, Casio, Fujitsu, Sony, Nikon, Seiko Epson, Pentax, Olympus, Kenwood and Agilent, all of whom have purchased MMP Portfolio licenses from The TPL Group during 2006.

“Lexmark becomes the second major computer peripherals manufacturer, preceded by Seiko Epson, to make the important strategic decision to become an MMP Portfolio licensee,” said Mike Davis, Alliacense Sr. Vice President, Licensing. “By capturing one of the ‘early-mover’ MMP Portfolio licensing berths, Lexmark has gained a competitive edge in supplying its printing and imaging products worldwide.” He confirmed that the MMP Portfolio Licensing Program rewards early movers in their industry sectors with substantial discounts.”

Lexmark provides businesses and consumers in more than 150 countries with a broad range of printing and imaging products, solutions and services that help them to be more productive. In 2005, Lexmark reported $5.2 billion in revenue and employed more than 13,000 people globally.

The MMP Portfolio patents, filed by The TPL Group in the 1980s, cover techniques that enable higher performance and lower cost designs, and are fundamental to consumer and commercial digital systems ranging from DVD players, cell phones and portable music players to communications infrastructure, medical equipment — and automobiles which today have dozens of microprocessor-based key features and benefits.

About the MMP Portfolio

Named after legendary inventor Charles “Chuck” Moore, the MMP Portfolio includes seven USpatents as well as their European and Japanese counterparts fundamental to the design of modern microprocessors, microcontrollers and system-on-chip devices. Developed in a joint venture between the TPL Group and Moore, the MMP Portfolio today is jointly owned by privately held TPL Group and publicly held Patriot Scientific Corporation (PTSC.OB).

About Alliacense

Alliacense is a TPL Group Enterprise executing best-in-class design and implementation of intellectual property 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 intellectual property portfolios. For more information, visit www.alliacense.com.

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

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