Patents by Inventor Robert S. Barker

Robert S. Barker 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).

  • Articles having aroma
    Patent number: 4950542
    Abstract: Articles are coated to provide a sustained release of aroma with a composition of a homogeneous emulsion of polyurethane and essential oils.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: August 21, 1990
    Inventor: Robert S. Barker
  • Preparation of propylene oxide
    Patent number: 4290959
    Abstract: An improved process for preparing propylene oxide is provided in which propylene is oxidized by means of a thallic salt in the presence of aqueous media containing an alkanoic acid having at least seven carbon atoms and optionally in the presence of an organic solvent.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: September 22, 1981
    Assignee: Halcon Research and Development Corp.
    Inventor: Robert S. Barker
  • Catalyst and use thereof
    Patent number: 3947474
    Abstract: A catalyst useful for the oxidation of organic compounds, particularly vapor-phase oxidation of benzene with molecular oxygen to produce maleic anhydride, comprises the oxides of molybdenum, vanadium, phosphorus, sodium and boron in combination with an oxide of at least one metal of the group consisting of manganese, tin, tungsten and bismuth, and preferably also in combination with an oxide of at least one member of the group consisting of iron, cobalt and nickel.
    Type: Grant
    Filed: January 15, 1974
    Date of Patent: March 30, 1976
    Assignee: Halcon International, Inc.
    Inventor: Robert S. Barker