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Cisco Fights To Void Teles VoIP Patent

Law360 (February 9, 2009, 12:00 AM EST) -- Cisco Systems Inc. has hit back at German telecommunications developer Teles AG Informationstechnologien, claiming that Teles' newly issued patent related to the transmission of telecommunications data online is invalid, unenforceable and not infringed by any of Cisco's products.

In a lawsuit filed Feb. 4 in the U.S. District Court for the District of Columbia, Cisco claimed that Teles had failed to disclose to the U.S. Patent and Trademark Office that it was involved in re-examination proceedings for two patents related to the patent-in-suit, as well as...
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