Patents by Inventor John C. Bernhardt

John C. Bernhardt 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).

  • Polyethylene terephthalate having a reduced acetaldehyde generation rate
    Patent number: 4361681
    Abstract: This invention relates to a high molecular weight polyethylene terephthalate composition comprised of a plurality of polyester chains wherein a substantial number of said chains have at least one end group corresponding to a formula selected from the group consisting of ##STR1## said composition having a reduced acetaldehyde generation rate.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: November 30, 1982
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: John C. Bernhardt