Yaw-Kuen Yang

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Tzu-Tung Li, Chang Hua City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Combination padlock
- Patent number 5,746,075
- Issue date May 5, 1998
- Yaw-Kuen Yang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Padlock having a freely rotatable shackle
- Patent number 5,685,179
- Issue date Nov 11, 1997
- Yaw-Kuen Yang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Knockdown type combination locking device for suitcases
- Patent number 4,766,748
- Issue date Aug 30, 1988
- Yaw K. Yang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Push button security lock
- Patent number 4,569,214
- Issue date Feb 11, 1986
- Yaw-Kuen Yang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Combination locking device for suitcases
- Patent number 4,554,809
- Issue date Nov 26, 1985
- Yaw Kuen Yang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Combination lock
- Patent number 4,519,229
- Issue date May 28, 1985
- Yaw-Kuen Yang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES