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E.Digital files 39 new patent suits related to flash memory

E.Digital Corp., founded by inventor Elwood Norris, filed 39 new patent-infringement lawsuits in federal court in San Diego.

All of the suits claim E.Digital’s patent 5,839,108 is infringed. The patent, issued in November 1998, relates to the use of flash-memory technology.

Among the defendants are Seagate Technology LLC, Mach Extreme Technology Inc., Intel Corp., Toshiba Corp. and Verifone Holdings Inc.

In April, E.Digital sued Apple Inc., Huawei Technologies Co., Verizon Communications Inc. and two retailers -- Target Corp. and Wal-Mart Stores Inc. E.Digital produces portable in-flight entertainment systems.

The new cases include E.Digital Corp. v. Seagate Technology LLC, 13-cv-02946, U.S. District Court, Southern District of California (San Diego).

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