Patents by Inventor Wayne I. Congdon

Wayne I. Congdon 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).

  • Top coated PVC articles
    Patent number: 4166881
    Abstract: Superior top coatings for PVC are polyesters, especially a polyester blend of a terpolymer of tetramethylene glycol reacted with terephthalic acid, isophthalic acid, and azelaic acid, and a copolymer of ethylene glycol reacted with terephthalic acid and sebasic acid.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: September 4, 1979
    Assignees: Western Electric Company, Bell Telephone Laboratories, Incorporated
    Inventors: Wayne I. Congdon, John J. Mottine, William C. Vesperman