Preemptive Round Of Lawsuits Targets V-Chip Patent Holder
The companies sued Guardian in the U.S. District Court for the Southern District of California after receiving written notice of infringement and a request for licensing in August. Guardian sent similar letters to the same companies four years earlier, but failed to take additional action after the companies denied infringement in 2000.
In addition to California-based Mitsubishi Electric and Sony Electronics Inc.,...
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