P

Inventor

FECHTEL ULRICH

DE4 patents
⚠️ This page may combine multiple inventors who share the name “FECHTEL ULRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MERCK PATENT GMBH

3 patents
US5473079ADec 5, 1995

Process for preparing 2-arylbenzimidazole-5-sulfonic acids

MERCK PATENT GMBH13 citations70
US5744618AApr 28, 1998

Process for the preparation of ascorbic acid

MERCK PATENT GMBH14 citations67
US5518588AMay 21, 1996

Method for preparing 3-aminopyridines from 3-nitropyridines

MERCK PATENT GMBH4 citations57

MERCK KGAA

1 patent
US6573393B1Jun 3, 2003

Method for producing L-ascorbic acid

MERCK KGAA0 citations47