facing a US import ban on some of its chips. The chips facing the US import ban are used in the nForce, Quadro, GeForce, Tesla and Tegra series graphics products, nearly every video card type manufactured by NVIDIA. However, David Shannon, executive of NVIDIA dismissed Rambus's victory on the other three patents because they will continue to be subject to reexamination proceedings in the US Patent and Trademark Office (PTO). He claimed that the US PTO has consistently found Rambus's asserted claims invalid. On January 27, 2010, the court ordered the parties to address on the impact of these consolidated cases of the January 22, 2010 ruling by the International Trade Commission, as well as the status of any further proceedings in the ITC and the U.S. Patent and Trademark Office at the March 12, 2010 case management conference. On July 26, 2010, U.S. International Trade Commission ruled NVIDIA chips infringed three Rambus patents, and issued an order that would ban imports of certain products containing the chips. NVIDIA said it can continue sales by taking advantage of a licensing arrangement Rambus reached with European regulators as part of an unrelated antitrust case. January 24, 2012 - The last of three patents that tech licensing company Rambus used to win infringement lawsuits against Nvidia Corp has been declared invalid. The three patents - collectively known as the Barth patents - pertain to memory chips used in personal computers and are considered to be among Rambus' most valuable intellectual property. On June 28, 2013 the invalidity contentions of the Barth patents were reversed by the Court of Appeals of the Federal Circuit: In conclusion, the Board’s determination that all 25 claims of the ’109 Patent are invalid as anticipated by Farmwald is not supported by substantial evidence. Accordingly, this court reverses. References United States patent case law Nvidia