Company News, Patents

Procter & Gamble Patents Teeth Whitening Method

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By: TOM BRANNA

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Patent No. US 7,122,199 B2: The Procter & Gamble Company, Cincinnati, OH, patented a method of bleaching a plurality of adjacent teeth, with teeth having facial and lingual surfaces, by applying a tooth bleaching delivery system comprised of a strip of material and a tooth bleaching composition....

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