Patents by Inventor Robt. W. VonHeck

Robt. W. VonHeck 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).

  • Inflatable cushion
    Patent number: D346087
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: April 19, 1994
    Inventor: Robt. W. VonHeck