Taoyuan, Taiwan - HTC got hot under the collar when it learned that Apple filed a fourth patent-infringement complaint against it before the U.S. International Trade Commission (ITC).
"HTC is dismayed that Apple has resorted to competition in the courts rather than the market place," said HTC general counsel Grace Lei. "HTC continues to vehemently deny all of Apple's past and present claims against it and will continue to protect and defend its own intellectual property as it has already done this year."
The latest complaint alleges infringement of five patents involving user interfaces, motion sensors, and touchscreen hardware.
HTC stressed that it introduced its first touchscreen smartphone in June 2002 before Apple's introduction of its iPhone in 2007. "As the smartphone market matured, Apple initiated litigation campaigns against many of its competitors, including HTC," an HTC statement said
The other three complaints by Apple against HTC include twin complaints
by Apple for allegedly infringing on 20 patents related to the iPhone's "user interface, underlying architecture and hardware," Apple said at the time. Apple filed similar complaints with the U.S. District Court in Delaware.