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Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 3, 2015
Patent Application Number
13759422
Date Filed
February 5, 2013
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention provides tooth whitening compositions in the form of a liquid crystal or a microemulsion that includes a tooth whitening agent in an amount effective to whiten teeth, a hydrophilic phase including water, a hydrophobic phase including at least one oil, at least one anionic, nonionic, amphoteric or zwitterionic surfactant, and a water soluble co-solvent having a Hildebrand solubility parameter above 12 (cal/cm3)1/2, as well as methods for whitening teeth including applying the liquid crystal or microemulsion composition to the teeth for a period of time and under conditions effective to whiten the teeth.
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