Inventor
GEISSLER HOLGER
DE17 patents
⚠️ This page may combine multiple inventors who share the name “GEISSLER HOLGER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CLARIANT GMBH
8 patentsUS6392047B1May 21, 2002
Process for preparing biaryls in the presence of palladophosphacyclobutane catalysts
CLARIANT GMBH77 citations95
US6521097B2Feb 18, 2003
Process for separating hydrogen chloride from a mixture comprising an N-alkyl-2-pyrrolidone and hydrogen chloride
CLARIANT GMBH7 citations73
US6075152AJun 13, 2000
Process for preparing isochroman-3-ones
CLARIANT GMBH9 citations73
US6653502B2Nov 25, 2003
Process for preparing phenylacetic acid derivatives
CLARIANT GMBH6 citations62
US6353136B1Mar 5, 2002
Process for preparing aromatic amines in the presence of palladaphosphacyclobutane catalysts
CLARIANT GMBH2 citations62
US6215006B1Apr 10, 2001
Process for the preparation of 3-isochromanoes by cyclization of o-chloromethylphenylacetic acids
CLARIANT GMBH3 citations62
US6002020ADec 14, 1999
Process for the catalytic preparation of 3-isochromanones from phthalans
CLARIANT GMBH6 citations62
US6348603B1Feb 19, 2002
Process for the preparation of isochroman-3-ones
CLARIANT GMBH0 citations41
HOECHST AG
2 patentsAVENTIS RES & TECH GMBH & CO
2 patentsUS6084114AJul 4, 2000
Dipalladaphosphacyclobutanes and a process for preparing the same
AVENTIS RES & TECH GMBH & CO8 citations71
US6162753ADec 19, 2000
Process for recovering cobalt carbonyl catalysts used to produced N-acyl-alpha-amino acid derivatives by amidocarbonylation
AVENTIS RES & TECH GMBH & CO5 citations61