View Full Version : Two Rambus patents invalidated after ITC wins

09-09-11, 04:10 PM
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(Reuters) - Two patents that chip designer Rambus (RMBS.O) used to win patent lawsuits against Nvidia Corp (NVDA.O), Hewlett-Packard (HPQ.N) and others have been declared invalid by the U.S. Patent and Trademark Office, according to legal documents.

The patents are two of three known as the Barth I patents, which Rambus has used in suing high-tech companies. Rambus' share price varies sharply on its successes in patent litigation.

09-09-11, 04:31 PM