Legal Opinion
Leapfrog Enterprises, Inc. v. Fisher-Price, Inc.
Court of Appeals for the Federal Circuit
Decided May 9, 2007No. 2006-1402PublishedCited by 72 opinions
1Opinion of the Court
LOURIE, Circuit Judge.
Leapfrog Enterprises, Inc. (“Leapfrog”) appeals from the order of the United States District Court for the District of Delaware entering judgment of nonin-fringement and invalidity of claim 25 of Leapfrog’s U.S. Patent 5,813,861 (“the '861 patent”) in favor of Fisher-Price, Inc. and Mattel, Inc. (collectively “Fisher-Price”). We affirm.
BACKGROUND
Leapfrog filed suit in October 2003, alleging that Fisher-Price’s PowerTouch product infringed claim 25 of the '861 patent. Leapfrog amended the complaint to add Mattel, Inc. as a codefendant in September 2004. The '861 patent…
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