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P&G sues J&J over tooth-whitening strip patent

LOS ANGELES
Fri May 2, 2008 6:18pm EDT

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LOS ANGELES (Reuters) - Procter & Gamble Co (PG.N) said on Friday it sued Johnson & Johnson (JNJ.N), claiming that J&J's Listerine Whitening Quick Dissolving Strips violate P&G patents.

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The lawsuit, filed on Friday in the U.S. District Court for the Western District of Wisconsin, alleges that the Listerine strips infringe P&G patents related to the tooth whitening active ingredient and delivery systems.

P&G has asked the court to stop J&J and its company, McNeil-PPC, from making, selling, and importing allegedly infringing products. P&G also is seeking recovery of damages.

P&G introduced Crest Whitestrips in 2000.

A spokeswoman for J&J declined to comment on pending litigation.

(Reporting by Lisa Baertlein, editing by Richard Chang)
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