AMAZON COM INC 01/30/2013:

In July 2012, Technology Properties Limited, Phoenix Digital Solutions LLC, and Patriot Scientific Corporation filed a complaint against us for patent infringement in the United States International Trade Commission and in the United States District Court for the Northern District of California. The complaints allege, among other things, that using the Kindle Fire in combination with certain peripheral devices infringes U.S. Patent No. 5,809,336, entitled “High Performance Microprocessor Having Variable Speed System Clock.” The ITC complaint seeks an exclusion order preventing the importation of Kindle Fire into the United States. The district court complaint asserts infringement of two additional patents—U.S. Patent Nos. 5,440,749 and 5,530,890, both entitled “High Performance, Low Cost Microprocessor Architecture”—and seeks an unspecified amount of damages, enhanced damages, attorneys’ fees, interest, and an injunction. In a November 2012 letter to the Company plaintiff alleged specifically that, if we are found to infringe the patents-in-suit and the patents are found to be valid (both of which we dispute), Amazon and its affiliates should pay damages of approximately $42 million, subject to enhancement, plus $17 million in prejudgment interest. We dispute the allegations of wrongdoing and intend to vigorously defend ourselves in this matter.

http://www.sec.gov/Archives/edgar/data/1018724/000119312513028520/d445434d10k.htm