Patents by Inventor Grace Amann

Grace Amann 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: D334540
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: April 6, 1993
    Inventors: Christopher Amann, Grace Amann