Patriot Scientific (OTC Bulletin Board: PTSC) and The TPL Group have unified their interests in a portfolio of fundamental microprocessor patents that are at the heart of a global microprocessor end-use market. The unification was achieved through a joint venture established via agreements entered into between Patriot Scientific and TPL in June 2005. Patriot and TPL each own 50% of the joint venture and share in the proceeds of licensing activities as distributed by the joint venture pursuant to the agreements. Alliacense, a TPL Group entity, is responsible for the commercialization and licensing of this patent portfolio.

The patent portfolio, marketed as the Moore Microprocessor Patent (MMP) Portfolio, contains intellectual property that is jointly owned by the publicly held Patriot Scientific Corporation and the privately held TPL Group. The portfolio encompasses several U.S. patents as well as their European and Japanese counterparts. Both TPL and Patriot assert that their jointly owned patents protect techniques used in designing microprocessors, microcontrollers, digital signal processors (DSPs), embedded processors, and system-on-chip (SoC) implementations. Patriot Scientific and TPL believe at least three of the patents are elemental to virtually every microprocessor design. The three most significant of these patents are as follows:

• U.S. 5,809,336: Clocking CPU and I/O Separately
• U.S. 6,598,148: Use of Multiple Cores and Embedded Memory
• U.S. 5,784,584: Multiple Instruction Fetch

Both Patriot Scientific and The TPL Group assert that these patents, which were granted in 1998 and which are valid through 2015, have long been essential to the design of modern high-speed microprocessors.