Fujitsu Patent Ruled Invalid In Battle With Tellabs

Law360, New York (August 20, 2013, 6:25 PM ET) -- Tellabs Inc. on Tuesday scored another victory in a long-running patent infringement battle with Fujitsu Ltd. as an Illinois federal judge ruled that a Fujitsu patent related to optical communications systems was invalid because it was anticipated and made obvious by prior art.

The ruling applies to one of four patents describing different components for transmitting optical data that Fujitsu had accused Tellabs of infringing. U.S. District Judge James F. Holderman agreed with Tellabs that the three patent claims Fujitsu had asserted for U.S. Patent No....
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