DR

Dirk Roettger

OG Oxeno Olefinchemie Gmbh: 13 patents #7 of 89Top 8%
EG Evonik Oxeno Gmbh: 5 patents #11 of 73Top 20%
EG Evonik Degussa Gmbh: 4 patents #305 of 1,853Top 20%
EG Evonik Functional Solutions Gmbh: 3 patents #1 of 14Top 8%
EG Evonik Operations Gmbh: 1 patents #547 of 1,233Top 45%
📍 Recklinghausen, DE: #5 of 345 inventorsTop 2%
Overall (All Time): #136,855 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
12180141 Process for the energy-efficient production of alkali metal alkoxides Sebastian Reimann, Niklas Paul, Armin Matthias Rix, Moritz Schröder, Philip Zitzewitz 2024-12-31
11746075 Method for the simultaneous production of sodium and potassium alcoholates Sebastian Reimann, Manfred Neumann, Moritz Schröder, Philip Zitzewitz, Niklas Paul +1 more 2023-09-05
11661388 Process for the energy-efficient production of alkali metal alkoxides Sebastian Reimann, Armin Matthias Rix, Niklas Paul, Moritz Schröder, Philip Zitzewitz 2023-05-30
11634372 Method for the energy-efficient production of sodium and potassium alcoholates Sebastian Reimann, Manfred Neumann, Moritz Schröder, Philip Zitzewitz, Niklas Paul +1 more 2023-04-25
8940951 Preparation of isobutene by dissociation of MTBE Markus Winterberg, Armin Matthias Rix, Reiner Bukohl, Walter Luh, Holger Wiederhold +2 more 2015-01-27
8877667 Process for regenerating a catalyst Christian Boeing, Reiner Bukohl, Markus Winterberg, Dietrich Maschmeyer 2014-11-04
8841492 Method for purification of mixtures comprising MTBE as well as production of isobutene by splitting of mixtures comprising MTBE Markus Winterberg, Armin Matthias Rix, Reiner Bukohl, Christian Boeing 2014-09-23
8722953 Method for producing dienes by hydrodimerization Volker Brehme, Manfred Neumann, Frank Bauer, Elke Fiebig-Bauer, Franz Bauer +1 more 2014-05-13
8633345 Process for preparing isobutene by cleaving MTBE-containing mixtures Markus Winterberg, Rainer Bukohl, Holger Wiederhold, Walter Luh 2014-01-21
8269050 Process for preparing ethyl tert-butyl ether from technical mixtures of C4 hydrocarbons Jochen Praefke, Armin Matthias Rix, Silvia Santiago Fernandez, Matthias Groemping, Frank Hoeper +3 more 2012-09-18
7977520 Method for the telomerization of non-cyclic olefins Cornelia Borgmann, Dagmara Ortmann, Reiner Bukohl, Stephan Houbrechts, Franz Nierlich 2011-07-12
7758897 Method for the production of metal complexes Ralf Jackstell, Matthias Beller 2010-07-20
7737318 Process for fine purification of 1-butenic streams Silvia Santiago-Fernandez, Armin Matthias Rix, Jochen Praefke, Markus Winterberg, Wilfried Bueschken 2010-06-15
7645914 Method for the telomerization of non-cyclic olefins Cornelia Borgmann, Dagmara Ortmann, Reiner Bukohl, Stephan Houbrechts, Franz Nierlich 2010-01-12
7541506 Method for the telomerisation of non-cyclic olefins Ralf Jackstell, Holger Klein, Matthias Beller 2009-06-02
7473812 Method for producing butene oligomers and tert-butyl ethers from C4 flows containing isobutene Udo Peters, Dieter Reusch, Andreas Beckmann, Jochen Praefke 2009-01-06
7462745 Method for the production of 2,7-octadienyl derivatives Franz Nierlich, Cornelia Borgmann, Stephan Houbrechts, Dietrich Maschmeyer 2008-12-09
7371909 Method for producing 1-olefins using palladium carbene compounds Matthias Beller, Ralf Jackstell, Holger Klein, Klaus-Diether Wiese, Dietrich Maschmeyer +3 more 2008-05-13
7368621 Method for producing 1-octene from crack-C4 Joerg Krissmann, Cornelia Borgmann, Kerstin Kaemper, Franz Nierlich, Alfred Kaizik +2 more 2008-05-06
7342144 Method for producing 1-olefins by catalytically splitting 1-alkoxyalkanes Alfred Kaizik, Dietrich Maschmeyer, Franz Nierlich, Cornelia Borgmann 2008-03-11
7304200 Method for separation of substances by extraction or by washing them with ionic liquids Franz Nierlich, Joerg Krissmann, Peter Wasserscheid, Wilhelm Keim 2007-12-04
7217828 Phosphinine compounds and metal complexes thereof Detlef Selent, Armin Boerner, Renat Kadyrov, Cornelia Borgmann, Dieter Hess +1 more 2007-05-15
7115790 Method for the production of 1-octene by reductive telomerisation Matthias Beller, Ralf Jackstell, Holger Klein, Dietrich Maschmeyer, Silvia Santiago Fernandez 2006-10-03
7109346 N-phenyl-pyrrol bisphosphane compounds and the metal complexes of the same Matthias Beller, Ralf Jackstell, Holger Klein, Detlef Heller, Hans-Joachim Drexler +1 more 2006-09-19
6500991 Stabilizing rhodium catalysts for the hydroformylation of olefins Klaus-Diether Wiese, Martin Trocha, Walter Toetsch, Alfred Kaizik, Wilfried Buschken 2002-12-31