Inventor
LISOWSKY RICHARD
DE14 patents
⚠️ This page may combine multiple inventors who share the name “LISOWSKY RICHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WITCO GMBH
11 patentsUS5523435AJun 4, 1996
Process for the synthesis of monomethylmetallocenes and dimethylmetallocenes and their solutions specifically for use in the polymerization of olefins
WITCO GMBH28 citations91
US5543535AAug 6, 1996
Organotin compounds useful in preparing bridged stereorigid metallocenes
WITCO GMBH16 citations81
US5625086AApr 29, 1997
Process for the preparation of cyclopentadienyltrialkoxytitanium derivatives
WITCO GMBH10 citations72
US5612462AMar 18, 1997
Process for preparing bridged stereorigid metallocenes
WITCO GMBH12 citations72
US5474716ADec 12, 1995
Process for the preparation of bridged cyclopentadienylmagnesium compounds and use thereof for preparing metallocenes
WITCO GMBH9 citations72
US5336795AAug 9, 1994
Process for the preparation of transition metal complexes having monosubstituted cyclopentadienyl ligands
WITCO GMBH14 citations72
US5708150AJan 13, 1998
Process for preparing transition metal complexes containing disubstituted cyclopentadienyl ligands
WITCO GMBH2 citations61
US5453221ASep 26, 1995
Bridged cyclopentadienylmagnesium compounds and use thereof for preparing metallocenes
WITCO GMBH2 citations61
US5856541AJan 5, 1999
Process for preparing 1 3-disubstituted cyclopentadienyl ligands and transition metal complexes thereof
WITCO GMBH1 citations51
US5618956AApr 8, 1997
Asymmetrically substituted metallocenes which are functionalized on one cyclopentadienyl ring, and their preparation
WITCO GMBH0 citations40
US5545785AAug 13, 1996
Process for preparing biscyclopentadienyl compounds
WITCO GMBH0 citations40