Chung-Min Chang

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Taichung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Driving system for garage door
- Patent number 7,076,917
- Issue date Jul 18, 2006
- Rhine Electronic Co., Ltd.
- Chung-Min Chang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Construction method of compound asphalt net with flame treatment
- Patent number 5,236,276
- Issue date Aug 17, 1993
- Chung-Hsiung Chang
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Rail assembly for slide-type garage door
- Publication number 20080104889
- Publication date May 8, 2008
- Chung-Min Chang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Driving system for garage door
- Publication number 20050120629
- Publication date Jun 9, 2005
- Chung-Min Chang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Manual clutch for an electric garage door
- Publication number 20020088682
- Publication date Jul 11, 2002
- Chung-Min Chang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES