Energizer Faces Suit Over Expired LED Patent

Law360 (December 8, 2010, 7:37 PM EST) -- Energizer Holdings Inc. has been hit with a qui tam suit that accuses the St. Louis-based company of falsely marking two of its light-emitting diode products with an expired patent.

Texas-based GHJ Holdings LLC filed the suit Tuesday in the U.S. District Court for the Eastern District of Texas, alleging that Energizer marked its aluminum 1-watt LED light and 2-LED headlight with a patent that expired in August.

The products have been marked with U.S. Patent Number 5,188,869, which describes a "process for burnishing anode current...
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