Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9950414 | Combustion driven fastener hand tool | Shih-Yi Chen, Chin-Chuan Chen | 2018-04-24 |
| 9862083 | Vacuum piston retention for a combustion driven fastener hand tool | Shih-Yi Chen, Chin-Chuan Chen | 2018-01-09 |