Twitter Didn't Infringe Messaging Patent, Fed. Circ. Rules

Law360, New York (August 30, 2013, 3:05 PM ET) -- The Federal Circuit on Friday affirmed a ruling that Twitter Inc. and others did not infringe a mass messaging patent owned by Cooper Notification Inc., finding that Twitter's service operates differently from the patented invention.

In a 2-1 decision, the appeals court concluded that U.S. District Judge Leonard Stark correctly construed the claims in Cooper's patent relating to the transmission of messages and granted Twitter summary judgment of noninfringement.

"We agree with the defendants," the court wrote. "The district court's interpretation of the transmission limitation is...
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