Subject : LG H&H, sued P&G over whitestrips patent
Date
2009-12-30
Visit
4881
LG Household & Healthcare Ltd. sued Procter & Gamble Co. this week, claiming the consumer products maker infringed on two patents when it sold a version of its popular at-home tooth whitening products.
In a lawsuit filed Tuesday in Delaware district court, LG Household & Healthcare Ltd. claimed P&G's Crest Whitestrips Advanced Seal used technology owned by the South Korean company, which holds two U.S. patents issued in 2004.
LG asked a federal jury to keep P&G from continuing to allegedly violate its patents and to award unspecified damages in the case.
The technology in dispute covers the adhesive layer of the strips. The patents are for a dry type tooth-whitening patch using peroxide as a whitening agent. The dry type patch exhibits superior adhesion while attached to the teeth for long periods of time.
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