Inventor · disambiguated record
Dirk Roettger
Also filed as: ROETTGER DIRK
28 granted patents·7 pending applications·503 citations·filing 2000–2023
96Inventor score
Files withOXENO OLEFINCHEMIE GMBH15EVONIK OPERATIONS GMBH5EVONIK OXENO GMBH4EVONIK FUNCTIONAL SOLUTIONS GMBH3WINTERBERG MARKUS3
Top patents by PatentIndex Score
35 records- 0197US6482992B2Multistage process for the preparation of oxo aldehydes and/or alcoholsOXENO OLEFINCHEMIE GMBH·Filed 2001·Granted Nov 19, 2002·68 cites·19 claims
- 0295US7342144B2Method for producing 1-olefins by catalytically splitting 1-alkoxyalkanesOXENO OLEFINCHEMIE GMBH·Filed 2003·Granted Mar 11, 2008·42 cites·8 claims
- 0395US6492564B1Process for the catalytically carrying out multiphase reactions, in particular hydroformylationsOXENO OLEFINCHEMIE GMBH·Filed 2000·Granted Dec 10, 2002·102 cites·19 claims
- 0494US6403837B1Process for the catalytic preparation of aldehydes from olefins using ligand mixturesOXENO OLEFINCHEMIE GMBH·Filed 2000·Granted Jun 11, 2002·41 cites·18 claims
- 0593US7473812B2Method for producing butene oligomers and tert-butyl ethers from C4 flows containing isobuteneOXENO OLEFINCHEMIE GMBH·Filed 2003·Granted Jan 6, 2009·39 cites·10 claims
- 0693US6500991B2Stabilizing rhodium catalysts for the hydroformylation of olefinsOXENO OLEFINCHEMIE GMBH·Filed 2001·Granted Dec 31, 2002·60 cites·16 claims
- 0791US7304200B2Method for separation of substances by extraction or by washing them with ionic liquidsOXENO OLEFINCHEMIE GMBH·Filed 2003·Granted Dec 4, 2007·27 cites·11 claims
- 0888US7737318B2Process for fine purification of 1-butenic streamsEVONIK OXENO GMBH·Filed 2006·Granted Jun 15, 2010·9 cites·17 claims
- 0988US7109346B2N-phenyl-pyrrol bisphosphane compounds and the metal complexes of the sameOXENO OLEFINCHEMIE GMBH & CO K·Filed 2001·Granted Sep 19, 2006·37 cites·17 claims
- 1087US7217828B2Phosphinine compounds and metal complexes thereofOXENO OLEFINCHEMIE GMBH·Filed 2004·Granted May 15, 2007·17 cites·25 claims
- 1185US7758897B2Method for the production of metal complexesEVONIK OXENO GMBH·Filed 2003·Granted Jul 20, 2010·18 cites·9 claims
- 1285US7115790B2Method for the production of 1-octene by reductive telomerisationOXENO OLEFINCHEMIE GMBH·Filed 2002·Granted Oct 3, 2006·15 cites·15 claims
- 1381US7462745B2Method for the production of 2,7-octadienyl derivativesOXENO OLEFINCHEMIE GMBH·Filed 2005·Granted Dec 9, 2008·4 cites·19 claims
- 1476US7977520B2Method for the telomerization of non-cyclic olefinsEVONIK OXENO GMBH·Filed 2005·Granted Jul 12, 2011·4 cites·19 claims
- 1573US8841492B2Method for purification of mixtures comprising MTBE as well as production of isobutene by splitting of mixtures comprising MTBEWINTERBERG MARKUS·Filed 2011·Granted Sep 23, 2014·1 cites·20 claims
- 1673US7371909B2Method for producing 1-olefins using palladium carbene compoundsOXENO OLEFINCHEMIE GMBH·Filed 2002·Granted May 13, 2008·6 cites·24 claims
- 1770US8269050B2Process for preparing ethyl tert-butyl ether from technical mixtures of C4 hydrocarbonsPRAEFKE JOCHEN·Filed 2006·Granted Sep 18, 2012·3 cites·22 claims
- 1870US7368621B2Method for producing 1-octene from crack-C4OXENO OLEFINCHEMIE GMBH·Filed 2004·Granted May 6, 2008·6 cites·16 claims
- 1968US8940951B2Preparation of isobutene by dissociation of MTBEWINTERBERG MARKUS·Filed 2010·Granted Jan 27, 2015·1 cites·18 claims
- 2064US2025340576A1Improved process for preparing metal alkoxide compoundsEVONIK OPERATIONS GMBH·Filed 2023·Application pending·0 cites
- 2163US8633345B2Process for preparing isobutene by cleaving MTBE-containing mixturesWINTERBERG MARKUS·Filed 2009·Granted Jan 21, 2014·1 cites·20 claims
- 2259US7541506B2Method for the telomerisation of non-cyclic olefinsOXENO OLEFINCHEMIE GMBH·Filed 2003·Granted Jun 2, 2009·2 cites·7 claims
- 2358US11746075B2Method for the simultaneous production of sodium and potassium alcoholatesEVONIK FUNCTIONAL SOLUTIONS GMBH·Filed 2020·Granted Sep 5, 2023·0 cites·16 claims
- 2457US11661388B2Process for the energy-efficient production of alkali metal alkoxidesEVONIK FUNCTIONAL SOLUTIONS GMBH·Filed 2022·Granted May 30, 2023·0 cites·16 claims
- 2556US2024279145A1Process for workup of a methanol/water mixture in the production of alkali metal methoxides in a reaction columnEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
- 2656US2024308942A1Process for the energy-efficient preparation of alkali metal alcoholatesEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
- 2755US2025215149A1Improved method for the depolymerization of polyethylene terephthalateEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
- 2853US11634372B2Method for the energy-efficient production of sodium and potassium alcoholatesEVONIK FUNCTIONAL SOLUTIONS GMBH·Filed 2020·Granted Apr 25, 2023·0 cites·14 claims
- 2950US7645914B2Method for the telomerization of non-cyclic olefinsEVONIK OXENO GMBH·Filed 2005·Granted Jan 12, 2010·0 cites·17 claims
- 3049US2010144998A1Process for fine purification of 1-butenic streamsOXENO OLEFINCHEMIE GMBH·Filed 2010·Application pending·0 cites
- 3148US12180141B2Process for the energy-efficient production of alkali metal alkoxidesEVONIK OPERATIONS GMBH·Filed 2022·Granted Dec 31, 2024·0 cites·16 claims
- 3246US2006264686A1Process for the oligomerization of butenesOXENO OLEFINCHEMIE GMBH·Filed 2006·Application pending·0 cites
- 3342US8877667B2Process for regenerating a catalystBOEING CHRISTIAN·Filed 2010·Granted Nov 4, 2014·0 cites·20 claims
- 3438US2003144559A1Process for the preparation of aldehydes from olefins by hydroformylationDEGUSSA·Filed 2002·Application pending·0 cites
- 3535US8722953B2Method for producing dienes by hydrodimerizationBREHME VOLKER·Filed 2007·Granted May 13, 2014·0 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →