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 26–50 of 91 patents

Patent #TitleCo-InventorsDate
10494326 Process for the alkoxycarbonylation of ethers Kaiwu Dong, Ralf Jackstell, Helfried Neumann, Matthias Beller, Dieter Hess +3 more 2019-12-03
10422047 Electrochemical process for coupling of phenol to aniline Katrin Marie Dyballa, Robert Franke, Siegfried R. Waldvogel, Bernd Elsler 2019-09-24
10294191 Monophosphine compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds Kaiwu Dong, Ralf Jackstell, Matthias Beller, Robert Franke, Dieter Hess +2 more 2019-05-21
10266955 Electrochemical coupling of anilines Katrin Marie Dyballa, Robert Franke, Siegfried R. Waldvogel, Bernd Elsler 2019-04-23
10227278 Economical production of 2-propylheptanol Katrin Marie Dyballa, Robert Franke, Markus Schwarz, Hermann-Josef Schulte-Althoff, Frank Geilen 2019-03-12
10214550 Bisphosphites having an unsymmetric outer biphenol unit Katrin Marie Dyballa, Robert Franke, Armin Boerner, Detlef Selent 2019-02-26
10202409 1, 1′ -bis(phosphino)ferrocene ligands for alkoxycarbonylation Kaiwu Dong, Ralf Jackstell, Helfried Neumann, Matthias Beller, Dieter Hess +3 more 2019-02-12
10202329 Ferrocene-based compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds Kaiwu Dong, Helfried Neumann, Ralf Jackstell, Matthias Beller, Robert Franke +3 more 2019-02-12
10196747 2,2′-diaminobiaryls having two secondary amines Katrin Marie Dyballa, Robert Franke, Siegfried R. Waldvogel, Bernd Elsler, Mathias Enders 2019-02-05
10167244 Method for hydroformylating cyclooctadiene using 2-(anthracen-9-yloxy)-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane Katrin Marie Dyballa, Robert Franke, Dieter Hess, Detlef Selent, Armin Börner 2019-01-01
10167245 Method for hydroformylating cyclooctadiene using 4-([1,1′:3′,1″-terphenyl]-2′-yloxy)-S-dinaphtho[2,1-D:1′,2′-F][1,3,2]dioxaphosphepine Katrin Marie Dyballa, Robert Franke, Dieter Hess, Detlef Selent, Armin Börner 2019-01-01
10131628 2,2′-diaminobiaryls having a phthaloyl group or succinoyl group Katrin Marie Dyballa, Robert Franke, Siegfried R. Waldvogel, Bernd Elsler, Mathias Enders 2018-11-20
10131607 Process for preparing unsymmetric OCO pincer ligands from the group of the M-terphenyl compounds Katrin Marie Dyballa, Robert Franke, Siegfried R. Waldvogel, Bernd Elsler, Anton WIEBE +1 more 2018-11-20
10131623 Process for preparing symmetric pincer ligands from the group of the M-terphenyl compounds Katrin Marie Dyballa, Robert Franke, Siegfried R. Waldvogel, Bernd Elsler, Anton WIEBE 2018-11-20
10125093 2,2′-diaminobiaryls having one primary and one secondary amine Katrin Marie Dyballa, Robert Franke, Siegfried R. Waldvogel, Bernd Elsler, Mathias Enders 2018-11-13
10087134 Process for the preparation of esters by means of carbonylation of ethers Kaiwu Dong, Ralf Jackstell, Helfried Neumann, Matthias Beller, Dieter Hess +3 more 2018-10-02
10077228 Ferrocene-based compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds Kaiwu Dong, Helfried Neumann, Ralf Jackstell, Matthias Beller, Robert Franke +3 more 2018-09-18
10017443 Optimized separation technique for work-up of homogeneously catalysed hydroformylation mixtures Hans-Gerd Lueken, Bart Hamers, Robert Franke, Markus Priske, Dieter Hess +2 more 2018-07-10
10000440 Influencing the viscosity of N-butene-based ester mixtures by controlled use of ethene in the preparation of the ester precursors Helene Reeker, Guido Stochniol, Dietrich Maschmeyer, Horst-Werner Zanthoff, Jörg Schallenberg +5 more 2018-06-19
9981903 Method for preparing di- or tricarboxylic esters by alkoxycarbonylation of dienes having conjugated double bonds Kaiwu Dong, Ralf Jackstell, Matthias Beller, Dieter Hess, Katrin Marie Dyballa +2 more 2018-05-29
9982001 Bisphosphites having an unsymmetric central biaryl unit Katrin Marie Dyballa, Robert Franke, Armin Börner, Detlef Selent 2018-05-29
9950979 Method for producing asymmetrical biphenols using selenium dioxide Katrin Marie Dyballa, Robert Franke, Michael Mirion, Thomas Quell, Siegfried R. Waldvogel 2018-04-24
9938310 1, 1′-bis(phosphino)ferrocene ligands for alkoxycarbonylation Kaiwu Dong, Helfried Neumann, Ralf Jackstell, Matthias Beller, Dieter Hess +3 more 2018-04-10
9914681 Preparation of high-quality oxo process alcohols from inconstant raw material sources Frank Geilen, Katrin Marie Dyballa, Dieter Hess, Stephan Peitz, Robert Franke +3 more 2018-03-13
9908910 Bidentate diphosphoramidites with a piperazine group as ligands for hydroformylation Katrin Marie Dyballa, Robert Franke, Dieter Hess, Frank Geilen, Galina Morales TORRES +2 more 2018-03-06