Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8827061 | Twin clutch hub | — | 2014-09-09 |
| 7980156 | Multipurpose transmission mechanism for bicycle with quick assembly device | — | 2011-07-19 |
| 7544139 | Multifunctional pedaling motion bicycle | — | 2009-06-09 |
| 5163886 | Exercising and rehabilitation apparatus | — | 1992-11-17 |
| 5088340 | Multipurpose transmission mechanism for bicycles | — | 1992-02-18 |
| 4762332 | Wheel chair | — | 1988-08-09 |
| 4630839 | Propulsion mechanism for lever propelled bicycles | — | 1986-12-23 |