Inventor

ZECH HELMUT

DE7 patents

⚠️ This page may combine multiple inventors who share the name “ZECH HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MENGES FREDERIK

2 patents

US8722893B2May 13, 2014

Process for manufacturing 5-chloromethyl-2,3-pyridine dicarboxylic acid anhydrides

MENGES FREDERIK2 citations58

US8563734B2Oct 22, 2013

2-[1-cyanopropyl)carbamoyl]-5-chloromethyl nicotinic acids and the use thereof in manufacturing herbicidal imidazolinones

MENGES FREDERIK2 citations58

BASF SE

2 patents

US9278977B2Mar 8, 2016

Process for manufacturing 5-chloromethyl-2,3-pyridine dicarboxylic acid anhydrides

BASF SE0 citations50

US11358922B2Jun 14, 2022

Process for preparing 4-chlorobenzyl propargyl ether

BASF SE0 citations49

BASF AG

1 patent

US7847097B2Dec 7, 2010

Method for production of 1-alkyl-3-phenyluracils

BASF AG15 citations81

RACK MICHAEL

1 patent

US8629279B2Jan 14, 2014

Process for manufacturing 5-formyl-pyridine-2,3-dicarboxylic acid esters

RACK MICHAEL2 citations56

GEBHARDT JOACHIM

1 patent

US9096570B2Aug 4, 2015

Process for manufacturing substituted 3-pyridylmethyl ammonium bromides

GEBHARDT JOACHIM0 citations30