posted by Thom Holwerda on Fri 20th Mar 2009 09:33 UTC
IconFollowing Microsoft's patent claim against TomTom, the Dutch mobile navigation device maker has countersued Microsoft, claiming the company infringes upon four of its patents. "The GPS device maker, based in The Netherlands, filed the countersuit in the U.S. District Court for the Eastern District of Virginia on Monday. TomTom says Microsoft's Streets and Trips products infringe on four patents it owns related to vehicle navigation software."
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