Apple has been facing a growing number of legal challenges in China.

Facebook has shot back at Yahoo's patent infringement lawsuit from last month.

The company formerly known as Silicon Graphics also targets HTC, RIM, LG and Sony in a patent infringement suit.

The acquisition could help it shore up defenses against new patent infringement lawsuits.

A federal judge yesterday tossed a $625.5 million patent infringement judgment against Apple, discarding a 2010 jury verdict that said the company violated patents in its iPhone, iPod, iPad and Mac OS X.

A U.S. appeals court has restored a jury verdict in a multimillion-dollar patent infringement case against Microsoft but ordered a new trial on damages.

Chip developer Rambus has filed patent infringement lawsuits against six chip makers including Broadcom and Freescale Semiconductor in the U.S., and said it is also seeking to ban the import of products that infringe its patents.

Microsoft filed patent infringement complaints against Motorola and its Android phones in the International Trade Commission and U.S. federal court Friday, indicating that the software giant may hope to use its strong patent position as one way to set its mobile software apart from the competition.

Apple claims HTC infringes 20 of its patents.

Technology research company Eolas Technologies, which won a US$520.6 million patent infringement case against Microsoft in 2003, has filed a new patent lawsuit against 22 companies including Adobe Systems, Google, Yahoo, Apple, eBay and Amazon.com.

Seagate Technology filed a potentially far-reaching patent infringement lawsuit against STEC on Monday, over flash memory-based solid state drives (SSDs).

Toshiba Corp. and Micron Technology Inc. have settled a number of outstanding lawsuits regarding alleged patent infringement and theft of trade secrets related to computer memory chips.

Apple Computer Inc. is facing a lawsuit over technology within its popular iPod digital music player and two related applications.

A Delaware judge has lifted a stay in an ongoing lawsuit between Rambus Inc. and Micron Technologies Inc., allowing Rambus to file new claims and to proceed in its patent infringement suit against the Boise, Idaho, memory chip maker.