Rambus ruling limits scope of patents

— 9:42 AM on March 15, 2001

The redoubtable Steven C. Den Beste sends in this story from Cahners Electronic News:

A judge has made a pre-trial ruling limiting the scope of Rambus Inc.’s patents in the U.S. court case against Infineon Technologies AG, according to industry sources close to the case.

This afternoon’s ruling by judge Robert E Payne, who is hearing the case in the U.S. District Court in Richmond, Va., could kill Rambus’ (nasdaq: RMBS) royalty claims on SDRAM and double data rate (DDR) memory, sources said.

In the ruling, the judge sided with an expert witness from Infineon (nyse: IFX), sources said.

“(The Markman) testimony was that the Rambus patent is a multiplex bus, and that we don’t use the multiplex bus in our SDRAM or DDR products,” the source said. “It means that because we don’t use the multiplex bus they use in their patents…we are not in violation of their patents.”

"Couldn't happen to a nicer bunch of guys," quips Mr. Den Beste.
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