Inventor
WELZ-BIERMANN URS
DE29 patents
⚠️ This page may combine multiple inventors who share the name “WELZ-BIERMANN URS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MERCK PATENT GMBH
18 patentsUS7645434B2Jan 12, 2010
Salts comprising cyanoborate anions
MERCK PATENT GMBH22 citations91
US7632969B2Dec 15, 2009
Process for the preparation of perfluoroalkylphosphines and the use thereof as perfluoroalkylating reagents
MERCK PATENT GMBH5 citations72
US7208626B2Apr 24, 2007
Method for the production of perfluoroalkyl phosphines and the use thereof as perfluoroalkylating reactants
MERCK PATENT GMBH9 citations72
US6479661B1Nov 12, 2002
Method for symmetrically and asymmetrically disubstituting carboxylic acid amides with organotitanates and grignard reagents
MERCK PATENT GMBH7 citations71
US6512145B1Jan 28, 2003
Method for the catalytic, asymmetric disubstitution of carboxylic acid amides with two different grignard reagents
MERCK PATENT GMBH3 citations63
US6420302B1Jul 16, 2002
Catalyst system
MERCK PATENT GMBH3 citations63
US7939644B2May 10, 2011
Cyanoborate, fluoroalkylphosphate, fluoroalkylborate or imide dyes
MERCK PATENT GMBH3 citations61
US7439395B2Oct 21, 2008
Process for the preparation of guanidinium salts
MERCK PATENT GMBH4 citations61
US7202379B2Apr 10, 2007
Process for the preparation of bis(perfluoroalkyl)phosphinic acids and salts thereof
MERCK PATENT GMBH5 citations61
US7145004B2Dec 5, 2006
Method for the production of monohydro-perfluoroalkanes, bis(perfluoroalkyl)phosphinates and perfluoroalkylphosphonates
MERCK PATENT GMBH3 citations61
US6515180B1Feb 4, 2003
Method for the catalytic, symmetric disubstitution of carboxylic acid amides with grignard reagents
MERCK PATENT GMBH3 citations60
US6448445B1Sep 10, 2002
Method for catalytically disubstituting carboxylic acid amides with at least one grignard reagent
MERCK PATENT GMBH3 citations60
US7700781B2Apr 20, 2010
Salts having alkoxytris(fluoroalkyl)borate anions
MERCK PATENT GMBH4 citations59
US7709656B2May 4, 2010
Ionic liquids containing guanidinium cations
MERCK PATENT GMBH2 citations51
US7692007B2Apr 6, 2010
Process for the preparation of onium salts having a low chloride content
MERCK PATENT GMBH2 citations51
US7999111B2Aug 16, 2011
Process for the preparation of onium alkylsulfonates
MERCK PATENT GMBH0 citations41
US7541488B2Jun 2, 2009
Process for the preparation of mono- and bis(fluoroalkyl)phosphoranes and the corresponding acids and phosphates
MERCK PATENT GMBH0 citations41
US7550491B2Jun 23, 2009
Ionic liquids having [N(CF3)2]− anions
MERCK PATENT GMBH0 citations36
IGNATYEV NIKOLAI MYKOLA
4 patentsUS8106217B2Jan 31, 2012
Ionic liquids with bis[bis(pentafluoroalkyl)phosphinyl]imides
IGNATYEV NIKOLAI MYKOLA5 citations61
US8702815B2Apr 22, 2014
Cyanoborate, fluoroalkylphosphate, fluoroalkylborate or imide dyes
IGNATYEV NIKOLAI MYKOLA0 citations50
US8084617B2Dec 27, 2011
Ionic liquids having fluoroalkyltrifluoroborate anions
IGNATYEV NIKOLAI MYKOLA0 citations50
US8101749B2Jan 24, 2012
Process for the preparation of onium salts with a tetrafluoroborate anion having a reduced halide content
IGNATYEV NIKOLAI MYKOLA0 citations40
EVONIK OPERATIONS GMBH
3 patentsUS10941293B2Mar 9, 2021
Polymer composition based on linear aliphatic polyamide
EVONIK OPERATIONS GMBH0 citations58
US10844222B2Nov 24, 2020
Semi-transparent polymer composite comprising a linear aliphatic polyamide
EVONIK OPERATIONS GMBH1 citations58
US12305022B2May 20, 2025
Polyamide composition
EVONIK OPERATIONS GMBH0 citations47