Patents by Inventor David J. Littrell

David J. Littrell 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).

  • Full body exercise climber
    Patent number: D321229
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: October 29, 1991
    Assignee: Precor Incorporated
    Inventors: Cole J. Dalton, David J. Littrell, Timothy O. Armstrong
  • Low impact treadmill
    Patent number: D321734
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: November 19, 1991
    Assignee: Precor Incorporated
    Inventors: Paul T. Dunham, David J. Littrell, Timothy O. Armstrong
  • Climbing exerciser
    Patent number: D328625
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: August 11, 1992
    Assignee: Precor Incorporated
    Inventors: Brian A. Arthur, David J. Littrell, Lawrence J. Graf, James S. Birrell
  • Recumbent exercise cycle
    Patent number: D347039
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: May 17, 1994
    Assignee: Precor Incorporated
    Inventors: David J. Littrell, Kenneth G. Real
  • Weighted hand-controller for remote control of exercise apparatus
    Patent number: D385258
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: October 21, 1997
    Assignee: Precor Incorporated
    Inventor: David J. Littrell
  • Cross training exerciser
    Patent number: D388847
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: January 6, 1998
    Assignee: Precor Incorporated
    Inventors: Janine Whan-Tong, Peter Pasero, David J. Littrell, Timothy O. Armstrong
  • Recumbent cycle with provision for upper body exercise
    Patent number: D826349
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: August 21, 2018
    Assignee: Woodway USA, Inc.
    Inventors: Nicholas A. Oblamski, Kasey Mylin, David J. Littrell, Cole J. Dalton, Douglas G. Bayerlein