Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12264044 | Stair lifting chair | Shun-Yuan Cheng | 2025-04-01 |
| D941193 | Rollator | — | 2022-01-18 |
| D871272 | Electric wheelchair | — | 2019-12-31 |
| 10081517 | Mechanism for linking chair and footrest of stairlift to each other | — | 2018-09-25 |
| 10053334 | Overspeed braking mechanism for a stairlift | — | 2018-08-21 |
| 9944208 | Leg rest device of power vehicle | — | 2018-04-17 |
| 9883979 | Seat back linking mechanism | — | 2018-02-06 |
| D808868 | Stair climber | — | 2018-01-30 |
| 9493094 | Seat tilt angle control device | — | 2016-11-15 |
| 9302691 | Folding mechanism of vehicle | — | 2016-04-05 |
| D744380 | Electric scooter | — | 2015-12-01 |
| 8286738 | Wheel set structure of an electric wheelchair | — | 2012-10-16 |
| 7775307 | Power wheelchair | — | 2010-08-17 |
| D561066 | Covering plate for an electric wheelchair | — | 2008-02-05 |
| D560564 | Frame for an electric scooter | — | 2008-01-29 |
| D559974 | Compressor for a nebulizer | — | 2008-01-15 |
| D527098 | Nebulizer | — | 2006-08-22 |
| 6910743 | Stable wheel assembly | — | 2005-06-28 |
| 6845996 | Shock absorber for a power wheelchair | — | 2005-01-25 |
| D494512 | Electric motorcycle | — | 2004-08-17 |
| D494110 | Electric wheelchair | — | 2004-08-10 |
| 6769503 | Battery compartment for a motorized wheel chair | — | 2004-08-03 |
| 6712391 | Adjustable steering assembly for an electrical scooter | — | 2004-03-30 |
| 6657414 | Terminal device for a battery container on an electromobile | — | 2003-12-02 |
| D471982 | Oxygen concentrator | — | 2003-03-18 |