CHIEN-TSAN CHAN

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TAOYUAN CITY, TW

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Patents Grantslast 30 patents

Information Patent Grant
Built-in toothpaste type toothbrush structure
- Patent number 11,684,145
- Issue date Jun 27, 2023
- YUAN YOANG INDUSTRIAL CO., LTD.
- Chien-Tsan Chan
- A46 - BRUSHWARE
Information Patent Grant
Wheel-at-rest automatic brake structure
- Patent number 11,541,923
- Issue date Jan 3, 2023
- YUAN YOANG INDUSTRIAL CO., LTD.
- Chien-Tsan Chan
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
BUILT-IN TOOTHPASTE TYPE TOOTHBRUSH STRUCTURE
- Publication number 20230067328
- Publication date Mar 2, 2023
- YUAN YOANG INDUSTRIAL CO., LTD.
- CHIEN-TSAN CHAN
- A46 - BRUSHWARE
Information Patent Application
WHEEL-AT-REST AUTOMATIC BRAKE STRUCTURE
- Publication number 20220111881
- Publication date Apr 14, 2022
- YUAN YOANG INDUSTRIAL CO., LTD.
- CHIEN-TSAN CHAN
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS