| 7582119 |
Prosthetic knee joint |
— |
2009-09-01 |
| 7101403 |
Vibration-absorbing device for an artificial lower limb |
— |
2006-09-05 |
| 7087091 |
Artificial knee joint having a minimum knee angle |
— |
2006-08-08 |
| 6706074 |
Artificial knee joint assembly capable of maintaining a knee angle between a lower leg and a thigh when the assembly stands on a horizontal or inclined surface |
— |
2004-03-16 |
| 6408961 |
Apparatus for driving hand-operated wheelchair |
— |
2002-06-25 |
| 6361467 |
Differential gear apparatus adapted to couple with a pinion mechanism of a wheeled vehicle |
— |
2002-03-26 |
| 6358285 |
Motor-driven prosthetic prehensor |
— |
2002-03-19 |
| 6326915 |
Radar device with multiplexed display functions for use in backing up a vehicle |
Shin-Chung Chen |
2001-12-04 |
| 6318197 |
Speed changeable gear drive apparatus for a wheeled vehicle |
— |
2001-11-20 |
| 6117177 |
Artificial knee joint having a swing phase control member |
Chien-Chuan Chen |
2000-09-12 |
| 6094131 |
Keyless lock device for a car |
Shin-Chung Chen |
2000-07-25 |
| 6080197 |
Shock absorbing device for an artificial leg |
— |
2000-06-27 |
| 5728173 |
Artificial knee joint |
— |
1998-03-17 |
| 5562174 |
Wheel assembly for a wheelchair |
— |
1996-10-08 |
| 5507838 |
Artificial foot with members to help wearer maintain steady balance |
— |
1996-04-16 |
| 5477935 |
Wheelchair with belt transmission |
— |
1995-12-26 |
| 5199520 |
Wheeled chair |
— |
1993-04-06 |
| 5133775 |
Covering device for an artificial limb |
— |
1992-07-28 |
| 5047063 |
Adjustment device for artificial limbs |
— |
1991-09-10 |
| D294475 |
Wheelchair |
— |
1988-03-01 |
| 4676800 |
Adjustable device for artificial limbs |
— |
1987-06-30 |