Inventor
HAN YUAN-ZHANG
US18 patents
⚠️ This page may combine multiple inventors who share the name “HAN YUAN-ZHANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ARCO CHEM TECH
15 patentsUS6383966B1May 7, 2002
Method for making a heterogeneous epoxidation catalyst
ARCO CHEM TECH24 citations92
US6376720B1Apr 23, 2002
Cobalt-catalyzed process for preparing 1,3-propanediol
ARCO CHEM TECH19 citations92
US6114552ASep 5, 2000
Heterogeneous epoxidation catalyst
ARCO CHEM TECH33 citations92
US6011162AJan 4, 2000
Epoxidation process using improved heterogeneous catalyst composition
ARCO CHEM TECH34 citations92
US5916835AJun 29, 1999
Heterogeneous catalyst regeneration
ARCO CHEM TECH44 citations92
US5798313AAug 25, 1998
Heterogeneous catalyst regeneration
ARCO CHEM TECH26 citations92
US5759945AJun 2, 1998
Preparation of titanium-containing catalysts using titanosiloxane polymers
ARCO CHEM TECH27 citations92
US5319114AJun 7, 1994
Olefin epoxidation using a carbon molecular sieve impregnated with a transition metal
ARCO CHEM TECH35 citations91
US5233093AAug 3, 1993
Hydroformylation process and bimetallic catalyst therefor
ARCO CHEM TECH19 citations81
US6770790B1Aug 3, 2004
Purification of tertiary butyl alcohol
ARCO CHEM TECH12 citations73
US5932751AAug 3, 1999
Epoxidation catalyst and process
ARCO CHEM TECH10 citations73
US6376724B1Apr 23, 2002
Cobalt-catalyzed process for preparing 1,3-propanediol
ARCO CHEM TECH5 citations62
US6323374B1Nov 27, 2001
Cobalt-catalyzed process for preparing 1,3-propanediol
ARCO CHEM TECH4 citations62
US6872679B2Mar 29, 2005
Heterogeneous catalyst regeneration
ARCO CHEM TECH0 citations51
US5276210AJan 4, 1994
Hydroformylation process and bimetallic catalyst therefor
ARCO CHEM TECH1 citations51