| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | United Kingdom | 4 | |
| #3 | Australia | 2 | |
| #4 | Canada | 1 | |
| #5 | Germany | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Sawing | |
| #2 | Handles for hand implements | |
| #3 | Hand-held cutting tools | |
| #4 | Tools for connecting or disengaging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chen Chun-Chiung | 9 |
| #2 | Chen Chun Chiung | 1 |
| #3 | Chun-Chiung Chen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2764540A3 | Screwdriver having a rotating arm | |
| GB9711723D0 | Screwdriver | |
| FR2751577A3 | Manual cutting device | |
| DE19507300A1 | Adjustment mechanism for hacksaw saw blades | |
| GB9414617D0 | Saw blade adjusting mechanism | |
| US5271158A | Saw blade adjusting device |