Patents by Inventor E. Roy Knoppel

E. Roy Knoppel 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).

  • Pants with front pocket
    Patent number: 4006494
    Abstract: A pair of dress pants or slacks has a wide and deep pocket across the front between the center creases on the legs. The pocket has a top opening with a slide opening and a lower end flap that is not attached directly to the front of the pants or slacks. On men's pants this flap covers an opening in the front of the pants just above the crotch.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: February 8, 1977
    Inventor: E. Roy Knoppel