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NTP Rides Again

3:20 PM -- Blimey, it must be tiring to be part of the legal department at NTP Software Inc. The technology-licensing company has let loose its legal eagles once again this week, suing U.S. carriers AT&T Inc. (NYSE: T), Sprint Corp. (NYSE: S), and Verizon Wireless over alleged patent infringements in their mobile email offerings.

NTP is probably best known for legal action against Canadian device mavens BlackBerry , but it's also taken on Palm Inc. and others. As far as I can tell, however, going after the carriers is a new twist. (See NTP Takes Another Shot.)

— Dan Jones, Site Editor, Unstrung

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