Patents by Inventor David Earl Rice

David Earl Rice 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).

  • Oral compositions
    Patent number: 5741138
    Abstract: The present invention relates to oral compositions containing specially prepared herbal materials; in another aspect the compositions contain a water insoluble noncationic antibacterial agent.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: April 21, 1998
    Assignee: The Procter & Gamble Company
    Inventors: David Earl Rice, Brian Joseph McCormick
  • Dentifrice compositions
    Patent number: 5716601
    Abstract: Oral compositions, such as oral gels and toothpastes, containing a novel abrasive.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: February 10, 1998
    Assignee: The Procter & Gamble Company
    Inventor: David Earl Rice
  • Silica abrasive compositions
    Patent number: 5676932
    Abstract: Oral compositions, such as oral gels and toothpastes, containing a novel abrasive.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: October 14, 1997
    Assignee: J.M. Huber Corporation
    Inventors: Satish Kumar Wason, David Earl Rice
  • Dentifrice compositions
    Patent number: 5658553
    Abstract: Oral compositions, such as oral gels and toothpastes, containing a novel abrasive.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: August 19, 1997
    Assignee: The Procter & Gamble Company
    Inventor: David Earl Rice
  • Dentifrice compositions
    Patent number: 5651958
    Abstract: Oral compositions, such as oral gels and toothpastes, containing a novel abrasive.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: July 29, 1997
    Assignee: The Procter & Gamble Company
    Inventor: David Earl Rice