Inventor
WOLF SIEGFRIED
AT17 patents
⚠️ This page may combine multiple inventors who share the name “WOLF SIEGFRIED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BIOCHEMIE GMBH
10 patentsUS6350869B1Feb 26, 2002
Crystalline amine salt of cefdinir
BIOCHEMIE GMBH43 citations92
US5869648AFeb 9, 1999
Process for the purification of a 3-cephem-4-carboxylic acid derivative
BIOCHEMIE GMBH17 citations91
US5616703AApr 1, 1997
Separation of cephalosporin isomers
BIOCHEMIE GMBH12 citations71
US6313289B1Nov 6, 2001
Purification process
BIOCHEMIE GMBH9 citations70
US5861508AJan 19, 1999
Purification of a cephalosporin salt
BIOCHEMIE GMBH7 citations70
US6333409B1Dec 25, 2001
Process for the purification of a 3-cephem-4-carboxylic acid derivative
BIOCHEMIE GMBH2 citations61
US6136967AOct 24, 2000
Process for the purification of a 3-cephem-4-carboxylic acid derivative
BIOCHEMIE GMBH3 citations61
US6489470B1Dec 3, 2002
Process for the preparation of cefpodoxime proxetil diastereoisomers
BIOCHEMIE GMBH5 citations60
US6235897B1May 22, 2001
Separation of cephalosporin isomers
BIOCHEMIE GMBH3 citations60
US5659030AAug 19, 1997
Purification of a cephalosporin salt
BIOCHEMIE GMBH0 citations48
SANDOZ AG
6 patentsUS7847093B2Dec 7, 2010
Processes for the preparations of cefepime
SANDOZ AG2 citations62
US7355041B2Apr 8, 2008
Intermediates in cefprozil production
SANDOZ AG4 citations60
US6949641B2Sep 27, 2005
Crystalline β-lactam intermediate
SANDOZ AG3 citations60
US7825241B2Nov 2, 2010
Cefdinir intermediate
SANDOZ AG0 citations52
US7250508B2Jul 31, 2007
Cefdinir intermediate
SANDOZ AG1 citations52
US6787649B2Sep 7, 2004
Cephalosporin intermediates
SANDOZ AG0 citations52