| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Taiwan | 14 | |
| #2 | United States | 5 | |
| #3 | Japan | 3 | |
| #4 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Tools for connecting or disengaging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chiang Wen-Hung | 16 |
| #2 | Osafune Katsumi | 4 |
| #3 | Jiang Wen-Hong | 4 |
| #4 | Jiang Wen Hong | 3 |
| #5 | Nagafune Katsumi | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2020139522A1 | Socket | |
| TWI715326B | Tool extension rod | |
| TWI697312B | Agitating tool | |
| JP2020203320A | Socket and method for using the same | |
| US2020368880A1 | Socket | |
| JP2019188595A | socket | |
| US2020290179A1 | Socket and method of using the same | |
| DE102019106210A1 | Socket and method of using it | |
| TWI679087B | Socket and method of using same | |
| TW202027916A | Socket and method of using same | |
| JP2019055478A | socket | |
| TW201927481A | Socket | |
| TWI643709B | Socket | |
| US2019240817A1 | Socket wrench | |
| TWI639489B | Socket wrench | |
| US2019152029A1 | Socket | |
| TW201912320A | Socket | |
| TWI647071B | Socket wrench | |
| TW201912333A | Improved electric rivet gun head holder structure capable of making the structure of the rivet gun head holder more practical and safe | |
| TW201114556A | Method of manufacturing galvanized iron driving toool |