Patents by Inventor Randy P. Washington

Randy P. Washington 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).

  • Tooth whitening products
    Patent number: 8524200
    Abstract: A tooth whitening product is provided. The tooth whitening product has a backing layer and a tooth whitening composition. The tooth whitening composition includes first and second water soluble polymers, water, and a tooth whitening agent, wherein the first water soluble polymer is polyethelene oxide and the second water soluble polymer is polyvinyl alcohol.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: September 3, 2013
    Assignee: The Procter & Gamble Company
    Inventors: Paul Albert Sagel, Lan Ngoc Nguyen, Randy P. Washington
  • TOOTH WHITENING PRODUCTS
    Publication number: 20110014252
    Abstract: A tooth whitening product is provided. The tooth whitening product has a backing layer and a tooth whitening composition. The tooth whitening composition includes first and second water soluble polymers, water, and a tooth whitening agent, wherein the first water soluble polymer is polyethelene oxide and the second water soluble polymer is polyvinyl alcohol.
    Type: Application
    Filed: July 14, 2010
    Publication date: January 20, 2011
    Inventors: Paul Albert Sagel, Lan Ngoc Nguyen, Randy P. Washington