SANTA CLARA, Calif.--Siliconix Inc., an 80.4 percent owned subsidiary of Vishay Intertechnology Inc., announced that it filed a patent infringement suit against Advanced Analogic Technologies Inc. (AnalogicTech) of Sunnyvale, Calif.
The suit, filed in the U.S. District Court for the Northern District of California, alleges that certain specified AnalogicTech products infringe three Siliconix patents that relate generally to power MOSFET products used in computers, cellular phones, fixed communications networks, automobiles, and other electronics systems.
"The lawsuit against AnalogicTech is part of our continuing effort to protect Siliconix's proprietary Trench technology," said King Owyang, Siliconix President and CEO, in statement. "Our intellectual property rights are central to our continued success in the marketplace. When we believe other companies are misappropriating our intellectual property rights, we intend to enforce those rights through legal action," he said.
"The patents, that we have determined AnalogicTech is infringing, are three of our fundamental United States patents covering our proprietary Trench technology, the 4,767,722, the 4,967,245 and the 5,034,785. The lawsuit identifies two AnalogicTech products that we believe are infringing, and we intend to determine whether there are additional infringing AnalogicTech products after further investigation," he said.