Sheen-Youl Gao

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Yun-Lin Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Transmission devices for locks with changeable lock core assemblies
- Patent number 6,109,080
- Issue date Aug 29, 2000
- Tong-Lung Metal Industry Co., Ltd.
- Po-Yang Chen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Latch bolt operating device
- Patent number 5,722,273
- Issue date Mar 3, 1998
- Tong-Lung Metal Industry Co., Ltd.
- San-Yi Lin
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Reinforcing apparatus for a lever handle of a door lock
- Patent number 5,666,833
- Issue date Sep 16, 1997
- Tong-Lung Metal Industry Co., Ltd.
- Sheen-Youl Gao
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Lock assembly for retracting a door latch
- Patent number 5,624,141
- Issue date Apr 29, 1997
- Tong-Lung Metal Industry Co., Ltd.
- Ching-Chuan Kuo
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES