Research in Motion claims Motorola is violating nine patents on cellular handsets, and demanding exorbitant royalties for its own patents, in Dallas Federal Court. And in Marshall, Texas, Federal Court that Research in Motion is violating Motorola patents in its BlackBerries.
Advanced Micro Devices and its subsidiary ATI Technologies claim Samsung violates their patents on semiconductor design and manufacture, in San Francisco Federal Court.
Nuance Communications claims Abbyy Software House, of Russia, and Lexmark violate five patents on optical recognition software, in Los Angeles Federal Court.
Guardian Media Technologies claims Hitachi violates its patented "automatic censorship of video programs," aka "V-chip" technology, in Los Angeles Federal Court.
Southwest Airlines claims these defendants are luring customers to their Web sites with spam emails featuring counterfeit trademarks: ConsumerBargainGiveaways LLC dba PublicOpinionPanel.com, and DirectGiftCardPromotions LLC dba ESurveyPanel.com, in Dallas Federal Court.
Microsoft claims xblsweepstakes.com and whoever operates it ran a phishing scam to get Xbox Live users' names and passwords, in Seattle Federal Court.
Read the Top 8
Sign up for the Top 8, a roundup of the day's top stories delivered directly to your inbox Monday through Friday.