ITC Upholds Ruling in SiRF/Broadcom Patent Dispute

August 15, 2008  - By
Image: GPS World

The U.S. International Trade Commission (ITC) has denied the request of SiRF Technology to review its initial determination that found that Broadcom subsidiary Global Locate Inc. didn’t infringe two SiRF GPS patents.

ITC Administrative Law Judge Paul Luckern had previously ruled that two of SiRF’s GPS patents were not infringed by Global Locate and that the asserted claims of one of the patents were invalid, following a six-day trial last March, according to Broadcom. SiRF had already dismissed two additional patents from the case before trial.

This ITC case is separate from a case in which an ITC judge ruled earlier this month that certain SiRF Technology products, including SiRFstarIII chipsets, infringe six patents related to improving GPS processing and sensitivity held by Global Locate.

Broadcom and SiRF have been battling on multiple fronts over patent infringement claims in federal court, the ITC, and before the U.S. Patent and Trademark Office. The August 8 ITC ruling against SiRF caused the company’s stock to take a pounding on Wall Street.