BD

Bernd Drapal

DA Degussa Ag: 3 patents #424 of 2,007Top 25%
EG Evonik Operations Gmbh: 2 patents #304 of 1,233Top 25%
DA Degussa-Huels Ag: 1 patents #156 of 473Top 35%
EG Evonik Degussa Gmbh: 1 patents #940 of 1,853Top 55%
EA Evonik Industries Ag: 1 patents #24 of 142Top 20%
Overall (All Time): #594,292 of 4,157,543Top 15%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12195422 Process for the preparation of D,L-methionine Johannes Wefer, Hans Joachim Hasselbach, Tobias WINKLER, Danny DE CORTE, Imad Moussallem +2 more 2025-01-14
10919848 Process for preparing methionine Sebastian Bernhardt, Martin Körfer, Stefan Reichert, Hans Joachim Hasselbach, Rainer Peter +3 more 2021-02-16
9464045 Process for the preparation of methionine Martin Koerfer, Hans Joachim Hasselbach, Stefan Reichert, Harald Jakob, Christoph Weckbecker +3 more 2016-10-11
9156782 Process for the preparation of methionine Martin Koerfer, Hans Joachim Hasselbach, Stefan Reichert, Harald Jakob, Christoph Weckbecker +3 more 2015-10-13
6586635 Process for the preparation of unsaturated ketones Nongyuan Shi, Steffen Krill, Markus Julino, Klaus Huthmacher 2003-07-01
6380437 Process for the preparation of unsaturated 4,5-allene ketones, 3,5-diene ketones and the corresponding saturated ketones Nongyuan Shi, Frank Hubner, Rainer Peter, Steffen Krill, Klaus Huthmacher +1 more 2002-04-30
6103924 Process for the preparation of 2,3,5-trimethylhydroquinone diesters Nongyuan Shi, Mario Scholz, Steffen Hasenzahl, Horst Weigel, Ralph McIntosh +2 more 2000-08-15
6063968 Method for the production of trimethylhydroquinone Frank Hubner, Steffen Krill, Hermann Schmitt, Klaus Huthmacher, Herbert Tanner 2000-05-16