Patents by Inventor Allan M. Howell

Allan M. Howell 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: D307861
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: May 15, 1990
    Inventor: Allan M. Howell