Patents by Inventor William D. Knoll

William D. Knoll 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).

  • Patent number: 4846205
    Abstract: The apparatus, used primarily on the beach, protects user from wind and blowing sand, as well as providing minimal shade from sun. The framework, made of rigid, plastic pipe, is held together by a braided nylon elastic cord, and it is sewn into a flexible sheet of nylon, creating an integrated unit which is completely collapsible for easy transport and storage. The apparatus is anchored by two uprights embedded in the sand and sand pockets sewn into the bottom of the unit which can be filled with said and emptied.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: July 11, 1989
    Inventor: William D. Knoll