Chiang; Jen Sen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chiang; Jen Sen.The latest application filed is for "safety braking device for doors".
- Chiang; Jen Sen - Zhongli N/A TW
- Chiang; Jen Sen - Zhongli City TW
| Patent | Date |
|---|---|
| Safety braking device for doors Grant 9,371,672 - Tseng , et al. June 21, 2 | 2016-06-21 |
| Safety Braking Device For Doors App 20140053370 - Tseng; Wen Chang ; et al. | 2014-02-27 |
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