Inventor
CRAMM GUENTHER
DE11 patents
⚠️ This page may combine multiple inventors who share the name “CRAMM GUENTHER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
10 patentsUS5283338AFeb 1, 1994
Process for the preparation of 2-chloropyridines
BAYER AG7 citations73
US4673729AJun 16, 1987
Paper auxiliary from condensation product of aliphatic polyol-ether-amine and compound polyfunctional toward amino groups
BAYER AG9 citations71
US5677453AOct 14, 1997
Process for the preparation of 4,6-dichloropyrimidines
BAYER AG9 citations70
US6562970B1May 13, 2003
Method for producing 4-chloro-6-hydroxypyrimidine
BAYER AG2 citations62
US6525198B1Feb 25, 2003
Method for producing 4,6-dichloropyrimidine with sulfur compounds and phosphorus compounds
BAYER AG5 citations62
US6441171B1Aug 27, 2002
Method for the production of 4,6-dichloropyrimidine with the aid of phosgene
BAYER AG5 citations62
US4384110AMay 17, 1983
Polyamines containing urea groups prepared from lactam or aminocarboxylic acid
BAYER AG2 citations61
US4348514ASep 7, 1982
Polyamines containing urea groups
BAYER AG2 citations61
US6822095B1Nov 23, 2004
Method for producing 4,6-dichloropyrimidine
BAYER AG1 citations52
US4294985AOct 13, 1981
Production of thiocarbohydrazide on a commercial scale
BAYER AG2 citations52