Patents by Inventor James Norman Cawse

James Norman Cawse 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).

  • Patent number: 6143913
    Abstract: A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes a catalytic amount of an inorganic co-catalyst containing zinc. In various alternative embodiments, the carbonylation catalyst system can include an effective amount of a palladium source and an effective amount of a halide composition. Further alternative embodiments can include catalytic amounts of various inorganic co-catalyst combinations.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: November 7, 2000
    Assignee: General Electric Company
    Inventors: James Lawrence Spivack, Donald Wayne Whisenhunt, Jr., James Norman Cawse, Bruce Fletcher Johnson
  • Patent number: 6114563
    Abstract: A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes a catalytic amount of an inorganic co-catalyst containing bismuth. In various alternative embodiments, the carbonylation catalyst system can include an effective amount of a palladium source and an effective amount of a halide composition. Further alternative embodiments can include catalytic amounts of various inorganic co-catalyst combinations.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: September 5, 2000
    Assignee: General Electric Co.
    Inventors: James Lawrence Spivack, Donald Wayne Whisenhunt, Jr., James Norman Cawse, Bruce Fletcher Johnson, Kirill Shalyaev
  • Patent number: 4111975
    Abstract: A process for producing polyhydric alcohols, their ether and ester derivatives, oligomers of such alcohols and monohydric alcohols and their ester derivatives by reacting hydrogen and oxides of carbon in the presence of a rhodium carbonyl complex, an alkali metal cation and a cryptand.
    Type: Grant
    Filed: March 30, 1977
    Date of Patent: September 5, 1978
    Assignee: Union Carbide Corporation
    Inventors: James Norman Cawse, Jose Luis Vidal