Patents by Inventor Elwyn Raymond Lovejoy

Elwyn Raymond Lovejoy 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).

  • Crosslinked aromatic polyimides and articles made therefrom
    Patent number: 4107125
    Abstract: A polyimide polymeric material of a crosslinked combination of two linear aromatic polyimide polymers is disclosed. The crosslinked polyimide polymeric material exhibits a retention of physical properties at high temperatures and finds particular utility as a matrix or binder material in high temperature applications.
    Type: Grant
    Filed: July 1, 1976
    Date of Patent: August 15, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Elwyn Raymond Lovejoy