Jiang; Zheng-Cong
Patent Applications and Registrations
Patent applications and USPTO patent grants for Jiang; Zheng-Cong.The latest application filed is for "screwdriver with rotary unit for changing bits".
- Jiang; Zheng-Cong - Taichung TW
- Jiang; Zheng-Cong - Taichung City TW
| Patent | Date |
|---|---|
| Adaptable screwdriver Grant D819,422 - Jiang June 5, 2 | 2018-06-05 |
| Screwdriver With Rotary Unit For Changing Bits App 20160214239 - Jiang; Zheng-Cong | 2016-07-28 |
| Calibration Tool For Torque Wrench App 20160161354 - Jiang; Zheng-Cong | 2016-06-09 |
| Torque Wrench App 20160144492 - Jiang; Zheng-Cong | 2016-05-26 |
| Palm wrench Grant D718,586 - Jiang December 2, 2 | 2014-12-02 |
| Driving head for hand tool Grant D714,116 - Jiang September 30, 2 | 2014-09-30 |
| Ratchet device with stable structure Grant 8,347,760 - Yu January 8, 2 | 2013-01-08 |
| Tool handle Grant D637,468 - Jiang May 10, 2 | 2011-05-10 |
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