Patents by Inventor John S. Dutton

John S. Dutton 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).

  • Building product comprising slate particles embedded in a fused glass binder
    Patent number: 5244850
    Abstract: A building product comprises slate particles e.g. flakes, slivers, chips, fragments, and/or powdered dust particles bonded together by a fused glassy binder.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: September 14, 1993
    Assignee: Digive Limited
    Inventor: John S. Dutton