Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9102380 | Bicycle driven by hands | Lai Yin Johnson Li | 2015-08-11 |
| 8505703 | Eccentric gearing type clutch | Lai Yin Johnson Li | 2013-08-13 |
| 8387475 | Continuously variable transmission | Miu Ling Mak | 2013-03-05 |
| 8297239 | Gyroscopic rotary engine | — | 2012-10-30 |