Patents by Inventor Duke Larsen

Duke Larsen 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).

  • Clipper lid
    Patent number: D435936
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: January 2, 2001
    Assignee: Wahl Clipper Corporation
    Inventors: Jason Long, Duke Larsen
  • Contour clipper
    Patent number: D436692
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: January 23, 2001
    Assignee: Wahl Clipper Corporation
    Inventor: Duke Larsen
  • Trimmer
    Patent number: D458710
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: June 11, 2002
    Assignee: Wahl Clipper Corporation
    Inventors: Nicolo Altamore, Michael K. Eddinger, Duke Larsen, Steven C. Cozzolino
  • Housing for a portable handset telephone or similar article
    Patent number: D297736
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: September 20, 1988
    Assignee: Motorola, Inc.
    Inventors: Rudolph W. Krolopp, Duke Larsen
  • Cradle for a telephone handset or similar article
    Patent number: D301883
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: June 27, 1989
    Assignee: Motorola, Inc.
    Inventors: Rudolph W. Kroplopp, Duke Larsen
  • Radio transceiver housing or similar article
    Patent number: D306583
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: March 13, 1990
    Assignee: Motorola, Inc.
    Inventors: Rudolph W. Krolopp, Duke Larsen, Thomas A. Freeburg
  • Engine timing light
    Patent number: D331710
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: December 15, 1992
    Assignee: Finelite
    Inventors: Donald C. McKinnon, Duke Larsen, Thomas F. Gauthier
  • Facial hair trimmer
    Patent number: D336545
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: June 15, 1993
    Assignee: Wahl Clipper Corporation
    Inventors: James E. McCambridge, Duke Larsen
  • Combined stacked temperature regulator, power supply and gel dryer for electrophoresis
    Patent number: D346662
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: May 3, 1994
    Assignee: Fotodyne Incorporated
    Inventors: Duke Larsen, Robert W. Dunst, Timothy G. J. Ehr, Stephen H. Gorski, Michael E. Hansen, Brian P. Walsh
  • Electronic imager for biological samples
    Patent number: D348523
    Type: Grant
    Filed: May 21, 1992
    Date of Patent: July 5, 1994
    Assignee: Fotodyne Incorporated
    Inventors: Duke Larsen, Robert W. Dunst, Stephen H. Gorski, Thomas C. Driscoll, Richard K. Vitek
  • Apparatus for discriminating and counting documents
    Patent number: D369984
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: May 21, 1996
    Assignee: Cummins-Allison Corp.
    Inventor: Duke Larsen