Jian-Choung Doong

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Lock module using colored light rays to identify the application of...
- Patent number 7,138,903
- Issue date Nov 21, 2006
- Jian-Choung Doong
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Lock module using colored light rays to identify the application of...
- Publication number 20050270767
- Publication date Dec 8, 2005
- Jian-Choung Doong
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Combination electrical lock device and method for activating the same
- Publication number 20050231037
- Publication date Oct 20, 2005
- Jian-Choug Doong
- G07 - CHECKING-DEVICES
Information Patent Application
Unlocking method by identification of colored light rays and unlock...
- Publication number 20050061956
- Publication date Mar 24, 2005
- Jian-Choug Doong
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES