Yi-Yu Chien

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Tainan City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Water treatment device
- Patent number 7,156,992
- Issue date Jan 2, 2007
- Yi-Yu Chien
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Method for converting metal with relative low reduction potential i...
- Publication number 20140116573
- Publication date May 1, 2014
- Chen-Sheng YEH
- C30 - CRYSTAL GROWTH
Information Patent Application
Water treatment device
- Publication number 20050126973
- Publication date Jun 16, 2005
- Yi-Yu Chien
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Water treatment device
- Publication number 20030141234
- Publication date Jul 31, 2003
- Yi-Yu Chien
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL