Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11624314 | Combustion chamber valve and fuel system for driven fastener hand tool | Raymond Wong, Chin-Chuan Chen | 2023-04-11 |
| 11554471 | Elastomeric exhaust reed valve for combustion driven fastener hand tool | Raymond Wong, Chin-Chuan Chen | 2023-01-17 |