Patents by Inventor Franz Kanthak

Franz Kanthak 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: D328708
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: August 18, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventor: Franz Kanthak