DF

Dirk Fridag

EG Evonik Degussa Gmbh: 57 patents #3 of 1,853Top 1%
EG Evonik Operations Gmbh: 16 patents #7 of 1,233Top 1%
EG Evonik Oxeno Gmbh: 8 patents #5 of 73Top 7%
EK Evonik Oxeno Gmbh & Co. Kg: 4 patents #7 of 52Top 15%
EA Evonik Industries Ag: 3 patents #5 of 142Top 4%
OG Oxeno Olefinchemie Gmbh: 3 patents #29 of 89Top 35%
📍 Haltern am See, DE: #1 of 110 inventorsTop 1%
Overall (All Time): #17,533 of 4,157,543Top 1%
91
Patents All Time

Issued Patents All Time

Showing 51–75 of 91 patents

Patent #TitleCo-InventorsDate
9896404 Bidentate diphosphoramidites with a homopiperazine group as ligands for hydroformylation Katrin Marie Dyballa, Robert Franke, Dieter Hess, Frank Geilen, Galina Morales TORRES +2 more 2018-02-20
9879353 Electrochemical coupling of two phenols which differ in their oxidation potential Katrin Marie Dyballa, Robert Franke, Siegfried R. Waldvogel, Bernd Elsler 2018-01-30
9790244 Bisphosphites having an unsymmetric outer biphenol unit Katrin Marie Dyballa, Robert Franke, Armin Boerner, Detlef Selent 2017-10-17
9771311 Coupling a phenol and an arene using selenium dioxide Katrin Marie Dyballa, Robert Franke, Michael Mirion, Thomas Quell, Siegfried R. Waldvogel 2017-09-26
9737884 Process for catalytic preparation of aldehydes from olefins using monophosphite mixtures Katrin Marie Dyballa, Robert Franke, Dieter Hess, Bart Hamers, Frank Geilen 2017-08-22
9725398 Benzene-based diphosphine ligands for alkoxycarbonylation Kaiwu Dong, Helfried Neumann, Ralf Jackstell, Matthias Beller, Robert Franke +3 more 2017-08-08
9688604 Phosphine ligand and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds Reiko Jennerjahn, Samet Gülak, Xiangjie FANG, Kaiwu Dong, Helfried Neumann +6 more 2017-06-27
9676805 Purifying organophosphorus compounds contaminated with chlorine Katrin Marie Dyballa, Robert Franke, Markus Priske 2017-06-13
9670585 Electrochemical coupling of a phenol to a naphthol Katrin Marie Dyballa, Robert Franke, Siegfried R. Waldvogel, Bernd Elsler 2017-06-06
9624153 Two-stage hydroformylation process with circulating gas and SILP technology Marc Becker, Katrin Marie Dyballa, Robert Franke, Hanna Hahn, Marina Lazar +2 more 2017-04-18
9617290 Bisphosphites having an outer naphthyl-phenyl unit Katrin Marie Dyballa, Robert Franke, Armin Boerner, Detlef Selent 2017-04-11
9610574 Supported composition and the use thereof in methods for the hydroformylation of unsaturated compounds Katrin Marie Dyballa, Hanna Hahn, Robert Franke, Marc Becker 2017-04-04
9556096 Unsymmetric bisphosphite Andrea Christiansen, Robert Franke, Dieter Hess, Katrin Marie Dyballa, Bernd Hannebauer 2017-01-31
9517986 Process for preparing 2,2′-biphenols using selenium dioxide Katrin Marie Dyballa, Robert Franke, Siegfried R. Waldvogel, Thomas Quell, Michael Mirion 2016-12-13
9499463 Mixtures of constitutionally isomeric bisphosphites Andrea Christiansen, Robert Franke, Dieter Hess, Katrin Marie Dyballa, Bernd Hannebauer 2016-11-22
9428433 Control of the viscosity of reaction solutions in hydroformylation processes Udo Lenz, Hans-Gerd Lueken, Robert Franke, Markus Rudek, Klaus-Diether Wiese +3 more 2016-08-30
9409844 Mixture of different asymmetrical bisophosphites and use thereof as a catalyst mixture in hydroformylation Andrea Christiansen, Robert Franke, Dieter Hess, Katrin Marie Dyballa, Bernd Hannebauer 2016-08-09
9393537 Jet loop reactor having nanofiltration Bart Hamers, Robert Franke, Marc Becker, Markus Priske 2016-07-19
9359278 Organophosphorus compounds based on anthracenetriol Andrea Christiansen, Robert Franke, Dieter Hess, Burkard Kreidler, Detlef Selent +1 more 2016-06-07
9353040 Method and device for the hydroformylation of isobutene and for the separation of the product mixture Goetz Baumgarten, Michael Graβ, Alfred Kaizik, Markus Winterberg, Hans-Gerd Lueken +4 more 2016-05-31
9290527 Method for producing 6-chlorodibenzo[D,F] [1,3,2] dioxaphosphepin Robert Franke, Bernhard Schemmer, Burkard Kreidler, Bjoern Wechsler 2016-03-22
9272973 Stable long-term method for producing C5-aldehydes Robert Franke, Dieter Hess, Markus Schwarz, Katrin Marie Dyballa, Hans-Gerd Lueken +2 more 2016-03-01
9221850 Monophosphite ligands having a tert-butyloxycarbonyl group Katrin Marie Dyballa, Robert Franke, Dieter Hess, Frank Geilen 2015-12-29
9221851 Mixture containing a monophosphite ligand and the use thereof for catalysis of a hydroformylation reaction Katrin Marie Dyballa, Robert Franke, Frank Geilen, Dieter Hess 2015-12-29
9206105 Mixture of bisphosphites and use thereof as a catalyst mixture in hydroformylation Andrea Christiansen, Robert Franke, Dieter Hess, Katrin Marie Dyballa, Bernd Hannebauer 2015-12-08