Patents by Inventor Edward R. Cox

Edward R. Cox 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).

  • Method of making a tartar control baking soda dentifrice
    Patent number: 5456903
    Abstract: Methods for manufacturing baking soda dentifrice compositions containing pyrophosphate tartar control agent using tetrasodium pyrophosphate. The process and compositions have less than about 20% of the pyrophosphate dissolved in the dentifrice composition.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: October 10, 1995
    Assignee: Procter & Gamble
    Inventors: Thomas E. Huetter, Donald J. White, Jr., Edward R. Cox, Cloyd Dixon, Jr.
  • Oral compositions
    Patent number: 5338537
    Abstract: Oral compositions providing antitartar and antigingivitis benefits containing an antitartar agent and a stannous salt.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: August 16, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Donald J. White, Jr., Edward R. Cox, Rama Kasturi
  • Compositions for reducing calculus
    Patent number: 5176900
    Abstract: Disclosed are oral compositions which are effective against calculus comprising a tripolyphosphate salt and an orthophosphate salt.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: January 5, 1993
    Assignee: The Procter & Gamble Company
    Inventors: Donald J. White, Jr., Edward R. Cox, Mary A. Hunter
  • Oral compositions
    Patent number: 5096701
    Abstract: Disclosed are oral compositions which are effective against calculus comprising a tripolyphosphate salt and an orthophosphate salt.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: March 17, 1992
    Assignee: The Procter & Gamble Company
    Inventors: Donald J. White, Jr., Edward R. Cox, Mary A. Hunter