Patents by Inventor Douglas E. Lenz

Douglas E. Lenz 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).

  • Automatic pretrip for engine powered generator
    Patent number: 5977647
    Abstract: A method and apparatus for making a pretrip diagnosis and identification of generator set problems which could cause shutdown or undesired operation of the generator set.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: November 2, 1999
    Assignee: Thermo King Corporation
    Inventors: Douglas E. Lenz, Ladislaus J. Brabec, Jay L. Hanson, Dave Forsmark, Mike P. Gaynor, Doyle G. Herrig, Phil L. Lee
  • Method for automatically stopping and restarting an engine powered generator
    Patent number: 5977646
    Abstract: A method and apparatus for restarting a generator set following a nuisance shutdown.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: November 2, 1999
    Assignee: Thermo King Corporation
    Inventors: Douglas E. Lenz, Ladislaus J. Brabec
  • Cover for a transport temperature control unit
    Patent number: D687135
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: July 30, 2013
    Assignee: Thermo King Corporation
    Inventors: Thomas W. Kampf, Douglas E. Lenz, Fusu Thao, David A. Schmitz, Tye S. Sonney, Thomas C. McCartney