Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10443969 | Paintball conveying device | — | 2019-10-15 |
| 9803953 | Mechanical paintball gun | — | 2017-10-31 |
| 7931018 | Structure of paintball gun | — | 2011-04-26 |
| 7793644 | Firing mechanism for paintball gun | — | 2010-09-14 |
| 7448372 | Shooting structure of a paint bullet gun | — | 2008-11-11 |
| 7290538 | Valve structure of a paint bullet gun | — | 2007-11-06 |
| 6808341 | Pneumatic edge trimming machine | Chung-Tsun Cho | 2004-10-26 |
| 6561887 | Protective cover detachably installed on a cutting machine/engraving machine combination | Chung-Tsun Cho | 2003-05-13 |