SAN FRANCISCOA U.S. federal appeals court partially vacated a final determination by the U.S. International Trade Commission (ITC) that found a patent held by Linear Technology Corp. to be invalid, according to statements released by Linear and Advanced Analogic Technologies Inc. Friday (May 22).
The U.S. Court of Appeals for the Federal Circuit partially reversed the final determination by the ITC, handed down in 2007. The court remanded the case back to the ITC for proceedings consistent with the appeals court's Thursday ruling, according to statements from the companies.
Thursday's ruling found that some AnalogicTech parts infringe on a U.S. patent held by Linear (No. 6580,258) and reversed an ITC finding that other AnalogicTech parts do not violate the patent, according to Linear (Milpitas, Calif.). The court also reversed an ITC finding that found one of the claims of the '258 patent invalid, Linear said.
AnalogicTech (Santa Clara, Calif.) said the ruling also partly affirmed the 2007 final determination by the ITC. AnalogicTech said an earlier victory in its dispute with Linear over another patent (6,411,531) was completed unaffected by the decision.
Linear alleged in a 2006 complaint to the ITC that parts from AnalogicTech violated both patents.
In a statement, Richard Williams, AnalogicTech's chief technology officer and CEO, said the ruling by the appeals court does not impact the importation the company's products by customers and affects products that amount to a "tiny and declining" portion of the company's revenue. The company has several newer generations of switching regulators that remain unaffected by this decision, he said.
"It is, and has been, our plan to focus our efforts on these newer designs," Williams said.