Patents by Inventor Lisa M. Christina-Beck

Lisa M. Christina-Beck has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dual component tooth whitening dentifrice
    Patent number: 5766574
    Abstract: A dual component whitening dentifrice composition is disclosed which comprises a first dentifrice component containing a peroxide compound such as urea peroxide and a second dentifrice component containing an abrasive such as alumina or silica which is incompatible with the peroxide, the first and second dentifrice components being maintained separate from the other until dispensed and combined for application to teeth requiring whitening.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: June 16, 1998
    Assignee: Colgate Palmolive Company
    Inventors: Lisa M. Christina-Beck, John P. Curtis, Susan E. Greenfeder, Richard Theiler