Patents by Inventor Timothy N. Booth

Timothy N. Booth 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).

  • Steam valve
    Patent number: 6302136
    Abstract: Steam valve wherein at least one of the valve plug mating surface or valve seat mating surface has a metal nitride and/or carbide coating thereon. Preferably, the metal nitride and/or carbide coating is on both mating surfaces.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: October 16, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Billy Lee Weaver, Michael R. Woiak, Timothy N. Booth