Patents by Inventor Harold S. Cox

Harold S. 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).

  • Patent number: 4808448
    Abstract: Substantially static-free, cellular expanded or foamed thermoplastic articles, including cups and containers, and processes for the manufacture of these articles including the manufacture of intermediate materials suitable for use in such manufacture.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: February 28, 1989
    Assignee: Roboserve Limited
    Inventor: Harold S. Cox
  • Patent number: 4771081
    Abstract: Substantially static-free, cellular expanded or foamed thermoplastic articles, including cups and containers, and processes for the manufacture of these articles including the manufacture of intermediate materials suitable for use in such manufacture.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: September 13, 1988
    Assignee: Roboserve Limited
    Inventor: Harold S. Cox
  • Patent number: 4696950
    Abstract: Substantially static-free, cellular expanded or foamed thermoplastic articles, including cups and containers, and processes for the manufacture of these articles including the manufacture of intermediate materials suitable for use in such manufacture.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: September 29, 1987
    Assignee: Roboserve Limited
    Inventor: Harold S. Cox