Patents

P&G Awarded Patent for Tooth Whitening Strip

US Patent No. 9,554,976 B2.

US Patent No. 9,554,976 B2; The Procter & Gamble Company has been awarded a patent for its tooth whitening strip that is comprised of a backing layer; a tooth whitening composition comprising a mixture of first and second polymers, water, and a tooth whitening agent, wherein said first polymer is polyethylene 

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