February 20, 2006
Last Friday, Energizer Holdings, Inc., announced that the U.S. Court of Appeals for the Federal Circuit upheld an Energizer patent (U.S. Patent No. 5,464,709, "Alkaline cells that are substantially free of mercury") as being valid, overruling an earlier decision of invalidity by the International Trade Commission (ITC). The issue surrounding this patent dispute, according to Energizer, is the large amount of "mercury-free" batteries allegedly being imported into the United States in violation of its patent. This case has been remanded to the ITC, where Energizer will argue for a ban on the importation and sale of the infringing batteries in the United States.
Energizer Press Release: LINK
Court of Appeals Decision: LINK
U.S. Patent No. 5,464,709: LINK
Energizer Press Release: LINK
Court of Appeals Decision: LINK
U.S. Patent No. 5,464,709: LINK
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