Chang; Ting-Kai
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Ting-Kai.The latest application filed is for "locking structure for hand tool".
- Chang; Ting-Kai - Taichung TW
- Chang; Ting-Kai - Taichung City TW
| Patent | Date |
|---|---|
| Locking structure for hand tool Grant 10,232,496 - Chang | 2019-03-19 |
| Locking structure for hand tool App 20180111253 - Chang; Ting-Kai | 2018-04-26 |
| Length adjustment structure for wrench extension App 20170312906 - CHANG; Ting-Kai | 2017-11-02 |
| Silent socket wrench App 20160271761 - CHANG; Ting-Kai | 2016-09-22 |
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