RIM Files Countersuit Against Visto
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Two days after being sued by wireless e-mail patent holder Visto, BlackBerry maker Research In Motion filed a lawsuit of its own, asking a court to determine that Visto's patents are invalid. RIM was accused of infringing on four patents, one of which is already under review by the USPTO.
RIM is now seeking to preemptively invalidate the other three, which are related to remote synchronization of data. The suit from Visto comes just two months after RIM paid a $612.5 million settlement to NTP over similar patent infringement claims. Visto is currently in patent litigation with Microsoft and Good Technology as well.