Patents by Inventor Rudolf M. Appenzeller

Rudolf M. Appenzeller 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).

  • Patent number: D313572
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: January 8, 1991
    Inventor: Rudolf M. Appenzeller