Patents by Inventor Stephen J. Thompson

Stephen J. Thompson 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).

  • Thickened moulding compositions
    Patent number: 5075393
    Abstract: A moulding composition comprises a fibrous reinforcement, an ethylenically unsaturated, essentially amorphous, polymer, a cross-linking agent copolymerizable therewith and, as a thickener and low profile/shrinkage control agent, a crystalline saturated polyester which(a) has a number average molecular weight of from 700-10,000 inclusive,(b) has a melting point within a range of from 50.degree.-140.degree. C. inclusive, and(c) is soluble in an equal weight of the cross-linking agent at 100.degree. C. and yet insoluble therein at 30.degree. C.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: December 24, 1991
    Assignee: Scott Bader Company Limited
    Inventor: Stephen J. Thompson
  • Thickened moulding compositions
    Patent number: 4895895
    Abstract: A thickened moulding composition comprises fibrous reinforcement, an ethylenically unsaturated polymer, a monomer copolymerizable therewith and a crystalline unsaturated polyester having a glycol component derived from at least two symmetrical glycols.Preferably, the crysatlline polyester has a molecular weight per double bond of no more than about 210 and a melting point of from 50.degree.-115.degree. C.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: January 23, 1990
    Assignee: Scott Bader Company Limited
    Inventors: Trevor R. Osborne, Stephen J. Thompson
  • Hand tool for abrading oxides from copper electrical wires
    Patent number: D528891
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: September 26, 2006
    Inventors: Stephen J. Thompson, Mary A. Thompson