Patents by Inventor Clive Percy Smith

Clive Percy Smith 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).

  • Thermoplastic polyester compositions
    Patent number: 4000109
    Abstract: Poly(tetramethylene terephthalate) compositions containing at least 2.5% by weight of the composition of a finely divided metal borate stable under the normal processing conditions for the polyester.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: December 28, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Clive Percy Smith, Martin Keith Thompson
  • Polyester composition
    Patent number: 3966671
    Abstract: Glass-filled compositions containing saturated thermoplastic polyesters and aliphatic carboxyl-containing materials of low molecular weight having shear-dependent melt viscosity characteristics.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: June 29, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventor: Clive Percy Smith