Shing-Hwa Doong

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Door lock
- Patent number 6,397,646
- Issue date Jun 4, 2002
- Shing-Hwa Doong
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Power supplying device for a door lock
- Patent number 6,381,999
- Issue date May 7, 2002
- Shing-Hwa Doong
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Key with identifier inserts
- Publication number 20070006621
- Publication date Jan 11, 2007
- Shing-Hwa Doong
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Method to make a copy of a key from stored data
- Publication number 20070003388
- Publication date Jan 4, 2007
- Shing-Hwa Doong
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
DOOR LOCK
- Publication number 20020062670
- Publication date May 30, 2002
- Shing-Hwa Doong
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES