Patents by Inventor Geoffrey C. Eastmond

Geoffrey C. Eastmond 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).

  • Poly (imide-ethers)
    Patent number: 5434240
    Abstract: Disclosed herein are novel poly(imide-ethers) containing ortho substitution in the main chain of the polymer. These polymers are made from novel aromatic bis-carboxylic anhydrides which contain two ether groups attached to an aromatic ring in ortho positions to each other. The polymers are particularly useful for films, fibers and encapsulation, as well as thermoplastics.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: July 18, 1995
    Assignee: The University of Liverpool
    Inventors: Geoffrey C. Eastmond, Jerzy Paprotny