Wednesday, December 7, 2005
SanDisk Corp. has filed a patent lawsuit in the Northern District of California against STMicroelectronics, accusing the semiconductor supplier of infringing its flash memory patents.
The disputed patent is U.S. Patent No. 5,991,517, entitled Flash EEprom System With Cell by Cell Programming Verification.
On Monday, the U.S. Trade Commission ruled that ST’s NAND flash memory chips did not violate three claims of U.S. Patent No. 5,172,338 belonging to SanDisk (Sunnyvale, Calif.), affirming an Oct. 19 ruling by an administrative law judge.
"SanDisk has developed a fundamental patent portfolio in the flash memory industry. SanDisk possesses hundreds of patents coverall all aspects of flash memory design from semiconductor devices to integrated systems," said Earle Thompson, chief intellectual property counsel, in a statement.
In July, the U.S. Court of Appeals for the Federal Court reversed a summary judgement regarding SanDisk's '987 memory card patent, thus renewing the memory disk supplier's almost four-year old patent infringement suit against Ritec, Pretec, and Memorex.
By: DocMemory
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