Patriot notifies 150 more firms over patent infringement

SAN DIEGO--Patriot Scientific Corp. Friday (April 23) said it has sent notification to more than 150 additional companies of potential infringement of its microprocessor patent.

Patriot previously announced lawsuits filed against Sony, Fujitsu, Toshiba, NEC, and Matsushita. It has also traded suits with Intel Corp. The initial filings seek damages in excess of several hundred millions of dollars.

Patriot Scientific's patents describe the principal means used by the microprocessor industry to increase the internal operating speed of modern microprocessors. The patent involved is U.S. Patent 5,809,336.