Patents by Inventor Mary E. Risner

Mary E. Risner 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).

  • Holder for fabric reels
    Patent number: D333723
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: March 9, 1993
    Inventor: Mary E. Risner