Patents by Inventor Wilhelm Kissow

Wilhelm Kissow 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).

  • Combined ruler and holder
    Patent number: D317133
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: May 28, 1991
    Inventors: Wilhelm Kissow, Ernst Kissow