Patents by Inventor Lawrence W. McKeen

Lawrence W. McKeen 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).

  • Coated microwave cookware
    Patent number: 4623565
    Abstract: An article of microwave cookware with a thermoset polyester substrate coated with an epoxy primer and a silicone resin topcoat which has two silicone resins with different methyl:phenyl ratios, one higher and the other lower to optimize both hardness and non-stick characteristics of the coating.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: November 18, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jozef T. Huybrechts, Lawrence W. McKeen