Patents by Inventor H. Earl Willis

H. Earl Willis 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).

  • Indirect-fired, all ceramic pyrochemical reactor
    Patent number: 5846072
    Abstract: The present invention is directed to an indirect-fired, stationary tube, gas/solids or solids/solids, full ceramic pyroprocessing furnace-reactor that uses heat-resistant conveyors to propel solids through the stationary tube.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: December 8, 1998
    Assignee: Merichem Company
    Inventor: H. Earl Willis