HC

Hung-Cheun Cheung

CG Celanese Gmbh: 7 patents #46 of 404Top 15%
HC Hoechst Celanese: 1 patents #468 of 871Top 55%
📍 Port Aransas, TX: #40 of 524 inventorsTop 8%
🗺 Texas: #18,864 of 125,132 inventorsTop 20%
Overall (All Time): #662,483 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6677480 Process control in production of acetic acid via use of heavy phase density measurement Michael Huckman, G. Paull Torrence 2004-01-13
6667418 Oxidation treatment of a recycle stream in production of acetic acid by methanol carbonylation Jerry A. Broussard, Stephen Houliston, Michael Huckman, Peggy McKarns Macatangay, Madan Singh +2 more 2003-12-23
6627770 Method and apparatus for sequesting entrained and volatile catalyst species in a carbonylation process Valerie Santillan, Mark O. Scates, Elaine C. Sibrel, G. Paull Torrence 2003-09-30
6458995 Catalytic composition for carbonylation including iridium and pyridine polymers Elaine C. Sibrel, G. Torrence 2002-10-01
6323364 Rhodium/inorganic iodide catalyst system for methanol carbonylation process with improved impurity profile Pramod Agrawal, Darrell A. Fisher, Valerie Santillan, Mark O. Scates, Elaine C. Sibrel +1 more 2001-11-27
6211405 Addition of iridium to the rhodium/inorganic iodide catalyst system Elaine C. Sibrel, Robin Suzanne Tanke, G. Paull Torrence 2001-04-03
5898087 Addition of amine to improve parafomaldehyde Carolyn Supplee, George C. Seaman, H. Robert Gerberich 1999-04-27
5603835 Trimethylolpropane color improvement Rodolfo W. Laurel, George C. Seaman 1997-02-18