Patents by Inventor John D. Fishburn

John D. Fishburn 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).

  • Mill exhaust system
    Patent number: 4798344
    Abstract: A pulverizing mill (10) wherein the pulverized material is classified by a vertical separator (38) as the pulverized material exits the pulverizing mill thus permitting the height of the mill to be reduced.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: January 17, 1989
    Assignee: Combustion Engineering, Inc.
    Inventor: John D. Fishburn