Patents by Inventor Peter J. Stephenson

Peter J. Stephenson 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).

  • Fluoropolymer-based powder coatings
    Patent number: 5229460
    Abstract: A solventless process for preparing a fluoropolymer based coating which involves mixing and heating a fluoropolymer with a thermoplastic acrylic resin to obtain a molten mixture, slowly cooling the molten mixture to obtain a solid mass having a degree of crystallinity of at least 85% and grinding the solid mass at a temperature higher than -50.degree. C.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: July 20, 1993
    Assignee: Evodex Powder Coatings
    Inventors: Mohammed K. Yousuf, Peter J. Stephenson, Nicholas J. Welton, Adrian J. Shortland