Patents by Inventor Frederick Sumner

Frederick Sumner 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: D348910
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: July 19, 1994
    Inventor: Frederick Sumner