Patents by Inventor David C. Beehler

David C. Beehler 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).

  • Film/fiber laminates
    Patent number: 4748070
    Abstract: Tear strength of biaxially oriented polypropylene film is increased by laminating thereto a fibrous web of polypropylene fiber under conditions whereby the orientation of the film is retained.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: May 31, 1988
    Assignee: Hercules Incorporated
    Inventor: David C. Beehler