Patents by Inventor Norman E. West

Norman E. West 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).

  • Stabilized polyacetal compositions
    Patent number: 4766168
    Abstract: Incorporation of 0.1-10 weight percent of certain hydroxy containing polymers and/or oligomers into polyacetal molding compositions results in improved thermal stability of such compositions.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: August 23, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Norman E. West
  • Polyacetal compositions with improved hydrolytic stability
    Patent number: 4760119
    Abstract: Incorporation of 0.6-5.0 weight percent of certain ethylene oxide/propylene oxide copolymers into polyacetal molding compositions results in improved hydrolytic stability of such compositions.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: July 26, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Charles L. Liotta, Norman E. West