Patents by Inventor Lap Fu Chue

Lap Fu Chue 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).

  • Patent number: 6709368
    Abstract: Requiring no special ability, this exercise devise can be used by anyone for simulating walking, while sitting down. Consisting of two pedals that move in opposition to one another as one foot presses down, while the other is pushed up, the device is placed under your feet while sitting in a chair. By turning clockwise a resistance dial located on a stem, resistance is adjustable by the user. A straight metal axle at the rear of the device serves as an axis about which two pedals rotate and furnishes support through the attached feet. Mechanism of resistance is provided by opposition against two arc shaped wedges offset by an angle resulting in one pedal rising as the other falls. Each end of a curved axle in the front provides support. The straight axle in the back is connected to the curved axle in the front by a central housing on top of which is positioned the resistance dial.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: March 23, 2004
    Assignee: Etna Products Co., Inc.
    Inventor: Lap Fu Chue
  • Patent number: D512831
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: December 20, 2005
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D515804
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: February 28, 2006
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D516301
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: March 7, 2006
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D517693
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: March 21, 2006
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D518524
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: April 4, 2006
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D519565
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: April 25, 2006
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D467664
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: December 24, 2002
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D473786
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: April 29, 2003
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D485015
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: January 6, 2004
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D485630
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: January 20, 2004
    Assignee: Etna Products Company, Inc.
    Inventor: Lap Fu Chue
  • Patent number: D485979
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: February 3, 2004
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D487511
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: March 9, 2004
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D489237
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: May 4, 2004
    Assignee: Kenki (H.K.) Ltd.
    Inventor: Lap Fu Chue
  • Patent number: D490585
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: May 25, 2004
    Assignee: Etna Products Co., Inc.
    Inventor: Lap Fu Chue