By Christopher Norton

Law360, Washington (October 06, 2011, 7:38 PM ET) -- Attorneys for Nvidia Corp., one of many memory controller makers defending against Rambus Inc.'s wide-reaching patent infringement campaign in the U.S. International Trade Commission, told the Federal Circuit on Thursday that Rambus had destroyed key documents pertaining to the patents-in-suit.

Rambus has repeatedly accused rival semiconductor makers of making infringing chips that are used in graphics cards, motherboards and other technology products, and has frequently used the ITC as a forum to assert its patent rights, including those relating to the five patents-in-suit in the current...