Patents by Inventor Max A. Ris

Max A. Ris 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).

  • Sink
    Patent number: D319301
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: August 20, 1991
    Assignee: Niro-Plan AG
    Inventor: Max A. Ris
  • Sink
    Patent number: D319302
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: August 20, 1991
    Assignee: Niro-Plan AG
    Inventor: Max A. Ris