Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |