King-Sung Yu

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Yuan-Lin, Chang-Hua Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Buffer device of door
- Patent number 6,009,597
- Issue date Jan 4, 2000
- King-Sung Yu
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Automatic door closing device
- Patent number 5,265,306
- Issue date Nov 30, 1993
- King-Sung Yu
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
PATCH FITTING WITH CLOSING FUNCTION
- Publication number 20130185896
- Publication date Jul 25, 2013
- KING-SUNG YU
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES