Philips Sues Gillette Over Electric Toothbrush Patent

Law360, New York (July 14, 2004, 12:00 AM EDT) -- Dutch consumer electronics group Philips Electronics has sued the Gillette Company in U.S. and German courts for patent infringement to bar Gillette from launching a new electronic toothbrush.

The lawsuits, filed in the U.S. District Court for the District of Delaware and the Landesgericht Dusseldorf in Germany, accuses Gillette of infringing Phillips “patented sonic technology.”

Both products have heads that move back and forth rather than circularly and emit a characteristic buzzing sound.

Philips' sonic technology was granted patents in the US in 1995 and in...
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