Patents Assigned to Faria Ltd.
  • Patent number: 5264205
    Abstract: An oral hygiene composition in a suitably applicable form for whitening and cleaning teeth provides a non aqueous composition containing an oxygen releaser such as calcium peroxide, magnesium peroxide or potassium chlorate. The oxygen in these agents is stable in the composition until the composition meets water during actual brushing at which time the oxygen is released to effect a bleaching action removing stains from the surface of the teeth, thereby serving to whiten them. The composition may be formed with other known dental hygiene constituents providing for whitening and hygiene in one application.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: November 23, 1993
    Assignee: Faria Ltd.
    Inventor: Mary H. Kelly