Seiko Epson Agrees to Purchase Moore Microprocessor Patent(TM) Portfolio License; Competition Intensifies as the World`s Leading Intellectual Property Companies Seek Competitive Advantage in Their Respective Business Sectors

CUPERTINO, Calif.--(BUSINESS WIRE)--June 23, 2006--Alliacense today announced that Seiko Epson Corporation has agreed, pending approval by the Seiko Epson Board of Directors, to purchase from The TPL Group a license to the Moore Microprocessor Patent(TM) (MMP) Portfolio. Seiko Epson will join a stellar group of MMP Portfolio system licensees including HP, Casio, Fujitsu, Sony and Nikon.

In addition to its industry-leading printer and LCD businesses, Seiko Epson is renowned for quality precision instruments including clocks for diverse applications ranging from watches to computers and wireless communications devices. ``This is an excellent endorsement of the MMP Portfolio,`` said Mac Leckrone, Alliacense president.

With Seiko Epson becoming the sixth global leader to purchase an MMP license in as many months, Leckrone confirmed that the MMP Portfolio Licensing Program momentum is strong and accelerating. ``As MMP Portfolio licensing rates continue to ramp over time, we are focusing our energies on leaders capable of making quick strategic business decisions.`` He noted that competition is intensifying among electronics system manufacturers worldwide to become first movers in their respective business sectors to purchase rights to the MMP Portfolio.

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.

About the MMP Portfolio

Named after legendary inventor Charles ``Chuck`` Moore, the Moore Microprocessor Patent Portfolio includes seven US patents 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 Seiko Epson (``Epson``)

Epson is a global leader in imaging products including printers, 3LCD projectors and small- and medium-sized LCDs. With an innovative and creative culture, Epson is dedicated to exceeding the vision and expectations of customers worldwide with products known for their superior quality, functionality, compactness and energy efficiency. For more information, visit http://www.epson.co.jp/e/index.htm.

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.

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