Hung-Cheun Cheung

Person

Corpus Christi, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Process control in production of acetic acid via use of heavy phase...
- Patent number 6,677,480
- Issue date Jan 13, 2004
- Celanese International Corporation
- Michael E. Huckman
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Oxidation treatment of a recycle stream in production of acetic aci...
- Patent number 6,667,418
- Issue date Dec 23, 2003
- Celanese International Corporation
- Jerry A. Broussard
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method and apparatus for sequesting entrained and volatile catalyst...
- Patent number 6,627,770
- Issue date Sep 30, 2003
- Celanese International Corporation
- Hung-Cheun Cheung
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalytic composition for carbonylation including iridium and pyrid...
- Patent number 6,458,995
- Issue date Oct 1, 2002
- Celanese International Corporation
- Hung-Cheun Cheung
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Rhodium/inorganic iodide catalyst system for methanol carbonylation...
- Patent number 6,323,364
- Issue date Nov 27, 2001
- Celanese International Corporation
- Pramod Agrawal
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Addition of iridium to the rhodium/inorganic iodide catalyst system
- Patent number 6,211,405
- Issue date Apr 3, 2001
- Celanese International Corporation
- Hung-Cheun Cheung
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Addition of amine to improve parafomaldehyde
- Patent number 5,898,087
- Issue date Apr 27, 1999
- Celanese International Corporation
- Hung-Cheun Cheung
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Trimethylolpropane color improvement
- Patent number 5,603,835
- Issue date Feb 18, 1997
- Hoechst Celanese Corporation
- Hung-Cheun Cheung
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Oxidation treatment of a recycle stream in production of acetic aci...
- Publication number 20030199711
- Publication date Oct 23, 2003
- Jerry A. Broussard
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process control in production of acetic acid via use of heavy phase...
- Publication number 20030144548
- Publication date Jul 31, 2003
- Michael E. Huckman
- C07 - ORGANIC CHEMISTRY

Hung-Cheun Cheung

Person

Patents Grantslast 30 patents

Process control in production of acetic acid via use of heavy phase...

Oxidation treatment of a recycle stream in production of acetic aci...

Method and apparatus for sequesting entrained and volatile catalyst...

Catalytic composition for carbonylation including iridium and pyrid...

Rhodium/inorganic iodide catalyst system for methanol carbonylation...

Addition of iridium to the rhodium/inorganic iodide catalyst system

Addition of amine to improve parafomaldehyde

Trimethylolpropane color improvement

Patents Applicationslast 30 patents

Oxidation treatment of a recycle stream in production of acetic aci...

Process control in production of acetic acid via use of heavy phase...