Court throws out remaining Rambus claims

A U.S. judge has thrown out the remaining three claims of copyright infringement in the case brought by processor designer Rambus Inc. against Germany's Infineon Technologies AG, Rambus said on Friday.

Los Altos, California-based Rambus had taken Infineon to court, claiming that the company had infringed upon its design patents in manufacturing SDRAM (synchronous dynamic random access memory) and DDR SDRAM (double data-rate SDRAM). Rambus had made deals with other chipmakers, while Infineon, Micron Technology Inc., of Boise, Idaho and South Korea's Hynix Semiconductor Inc. have held out on paying royalties to the company.

"We are disappointed with the Court's decision and plan to appeal the ruling," said Geoff Tate, Rambus' chief executive officer, in a statement. "If today's decision is allowed to stand, all companies that innovate risk having their intellectual property rights unjustly expropriated."

The Judge of the U.S. District Court in Richmond, Virginia threw out 54 of Rambus' claims in the case on Tuesday, leaving three remaining, which were thrown out Friday.

Rambus will continue to fight for what it considers its intellectual property, Tate said in the statement, adding that Rambus would not be "cowed by the aggressive tactics of some industry giants who would take over (Rambus') innovations without any compensation."

However, there are still a dozen patents involved in other Rambus cases in the U.S. and Europe, Rambus said in a statement. The company plans to appeal the Virginia ruling, while the company's suit against Infineon in Germany is scheduled to begin in two weeks.

Rambus also holds newly-issued patents covering SDRAM and DDR SDRAM that have not been entered into any litigation yet, and are not affected by the court's decision, the company said.

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