Chien C. Wu

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Lu Kang Chen, Chang Hwa, TW

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Patents Grantslast 30 patents

Information Patent Grant
Pivoting mechanism for spring hinge
- Patent number 12,259,000
- Issue date Mar 25, 2025
- JYI HSING ENTERPRISE CO., LTD.
- Chien-Cheng Wu
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Spring hinge
- Patent number 4,751,765
- Issue date Jun 21, 1988
- Chien C. Wu
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
PIVOTING MECHANISM FOR SPRING HINGE
- Publication number 20250052274
- Publication date Feb 13, 2025
- JYI HSING ENTERPRISE CO., LTD.
- CHIEN-CHENG WU
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES