Patents by Inventor John H. Ackerman

John H. Ackerman 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: D318233
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: July 16, 1991
    Inventor: John H. Ackerman