Patents by Inventor David S. Jacobs

David S. Jacobs 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 phase stannous oral compositions
    Patent number: 6521216
    Abstract: The present invention relates to dual phase oral compositions providing effective antimicobial activity for reducing plaque and gingivitis. One of the phases of the dual phase composition will contain stannous. The stannous phase comprises a stannous ion source, a fluoride ion source, and a gluconate salt. The stannous phase is essentially free of either an abrasive polishing material or chloride ions. The stannous phase containing phase inhibits the formation of a stannous chloro gluconate complex. The present invention also provides a method for effective delivery of stannous-containing compositions.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: February 18, 2003
    Assignee: The Procter & Gamble Company
    Inventors: William M. Glandorf, Cloyd Dixon, Jr., David S. Jacobs, Gary L. Walden, Fred C. Wireko
  • Pressure modulating valve
    Patent number: 4033479
    Abstract: Operating fluid pressure is supplied to a fluid motor past a modulating operating fluid pressure and a work pressure so as to control the work pressure.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: July 5, 1977
    Inventors: James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher, David S. Jacob
  • Painter's shield
    Patent number: D341529
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: November 23, 1993
    Inventor: David S. Jacobs