JL

Jan-Bernd Lenfers

BH Bayer Healthcare: 6 patents #1,523 of 8,007Top 20%
📍 Wuppertal, DE: #319 of 1,656 inventorsTop 20%
Overall (All Time): #878,907 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6774236 Process for the preparation of enantiomerically pure cycloalkano-indol -and azaindol -and pyrimido [1,2A]indolcarbocyclic acids and their activated derivatives Peter Fey, Paul Naab, Kai van Laak 2004-08-10
6756409 Phenoxyphenyl alkanesulphonates Markus Heil, Heinrich Meier, Paul Naab, Arnd Voerste, Jean De Vry +3 more 2004-06-29
5952498 Process for the preparation of enantiomerically pure cycloalkano-indol -and azaindol -and pyrimido 1,2a! indolcarboxcyclic acids and their activated derivatives Peter Fey, Paul Naab, Kai van Laak 1999-09-14
5650514 3-substituted quinoline-5-carboxylic acid derivatives and processes for their preparation Jurgen Stoltefuss, Michael Negele, Karl-Heinz Wahl, Samir Samaan 1997-07-22
5190971 Substituted dibenz-oxa-thiocinones, -12-oxides and -12,12-dioxides, a process for their preparation and their use in medicaments Peter Fey, Klaus Frobel, Andreas Knorr, Johannes-Peter Stasch, Erwin Bischoff +2 more 1993-03-02
5089487 Circulation-active dibenzo[1,5]dioxocin-5-ones Klaus Frobel, Peter Fey, Andreas Knorr, Johannes-Peter Stasch, Hartwig Muller +2 more 1992-02-18