Liang-An Hsu

Follow

Person

Kaohsiung, TW

People

Patents Grantslast 30 patents

Information Patent Grant
Catalytic oxacylation vapor phase process
- Patent number 7,265,243
- Issue date Sep 4, 2007
- Dairen Chemical Corporation
- Shien-Chang Chen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing lactam
- Patent number 6,350,883
- Issue date Feb 26, 2002
- Dairen Chemical Corporation
- Shien-Chang Chen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for preparing lactone and a method for preparing lactone
- Patent number 6,323,347
- Issue date Nov 27, 2001
- Dairen Chemical Corporation
- Shien-Chang Chen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing polyether polyol and copolymer thereof
- Patent number 6,313,262
- Issue date Nov 6, 2001
- Dairen Chemical Corporation
- Shien Chang Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Catalyst for oxacylation and use of the same
- Publication number 20040236121
- Publication date Nov 25, 2004
- Dairen Chemical Corporation
- Shien-Chang Chen
- C07 - ORGANIC CHEMISTRY
Information Patent Application
CATALYST FOR OXACYLATION AND USE OF THE SAME
- Publication number 20030148882
- Publication date Aug 7, 2003
- SHIEN-CHANG CHEN
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for preparing lactam
- Publication number 20020120154
- Publication date Aug 29, 2002
- DAIREN CHEMICAL CORPORATION
- Shien-Chang Chen
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Catalyst for preparing lactone and a method for preparing lactone
- Publication number 20010009964
- Publication date Jul 26, 2001
- DAIREN CHEMICAL CORPORATION
- Shien-Chang Chen
- C07 - ORGANIC CHEMISTRY