Patents by Inventor Hans-Georg Heffe-Sander

Hans-Georg Heffe-Sander 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: D314856
    Type: Grant
    Filed: October 28, 1987
    Date of Patent: February 26, 1991
    Inventors: Hans-Georg Heffe-Sander, Alfred Gruber