Jan-Bernd Lenfers

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Wuppertal, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of enantiomerically pure cycloalkano-in...
- Patent number 6,774,236
- Issue date Aug 10, 2004
- Bayer Aktiengesellschaft
- Jan-Bernd Lenfers
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phenoxyphenyl alkanesulphonates
- Patent number 6,756,409
- Issue date Jun 29, 2004
- Bayer Aktiengesellschaft
- Markus Heil
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of enantiomerically pure cycloalkano-in...
- Patent number 5,952,498
- Issue date Sep 14, 1999
- Bayer Aktiengesellschaft
- Jan-Bernd Lenfers
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3-substituted quinoline-5-carboxylic acid derivatives and processes...
- Patent number 5,650,514
- Issue date Jul 22, 1997
- Bayer Aktiengesellschaft
- Jurgen Stoltefuss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted dibenz-oxa-thiocinones, -12-oxides and -12,12-dioxides,...
- Patent number 5,190,971
- Issue date Mar 2, 1993
- Bayer Aktiengesellschaft
- Peter Fey
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Circulation-active dibenzo[1,5]dioxocin-5-ones
- Patent number 5,089,487
- Issue date Feb 18, 1992
- Bayer Aktiengesellschaft
- Klaus Frobel
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Phenoxyphenyl alkanesulphonates
- Publication number 20040214886
- Publication date Oct 28, 2004
- Bayer Aktiengesellschaft
- Markus Heil
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Phenoxyphenyl alkanesulphonates
- Publication number 20030022934
- Publication date Jan 30, 2003
- Markus Heil
- C07 - ORGANIC CHEMISTRY