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CoolTouch Hits Back At VNUS Over Laser Patents

Law360 (September 16, 2008, 12:00 AM EDT) -- Laser medical device maker CoolTouch Inc. has hit back at rival VNUS Medical Technologies Inc. in a suit over a treatment for varicose veins, alleging that the plaintiff made false claims or failed to disclose relevant information while prosecuting two of the five asserted patents before the U.S. Patent and Trademark Office.

The answer and counterclaims, filed Monday in U.S. District Court for the Northern District of California, allege that all of VNUS' patents are invalid or unenforceable due to inequitable prosecution or the doctrine of...
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