Patents by Inventor Daniel A. Kniska

Daniel A. Kniska 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).

  • Arm cushion for a crutch
    Patent number: D318366
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: July 23, 1991
    Inventors: Lee M. Goldstein, Daniel A. Kniska