updated 06:40 pm EST, Tue November 24, 2009
Rambus' 17 patent claims against NV denied
NVIDIA claimed a legal victory on Tuesday as the US Patent and Trademark Office again denied a slew of patent claims Rambus has been using to try and block sales of NVIDIA's products. Similar to 41 previous claims, 17 claims by Rambus spread across three patents have been ruled invalid and can't be used in the memory maker's case with the International Trade Commission. The motion had argued that NVIDIA should be banned from selling graphics processors with memory controllers allegedly similar to those Rambus uses.
The measure leaves just eight claims left across two patents, though the USPTO has initially rejected those and is expected to provide a similar final ruling later. Rambus is known to regularly use patent disputes to protect and collect royalties from its core business; these have included its close rival Hynix among others.