Inventor · disambiguated record
Helmut Gehrke
Also filed as: GEHRKE HELMUT
10 granted patents·9 pending applications·154 citations·filing 1992–2022
87Inventor score
Files withGEHRKE HELMUT4THYSSENKRUPP IND SOLUTIONS AG3KRUPP UHDE GMBH2NOLL OLIVER2THYSSENKRUPP UHDE GMBH2
Top patents by PatentIndex Score
19 records- 0191US6124514AProcess for generating pure benzene from reformed gasolineKRUPP UHDE GMBH·Filed 1997·Granted Sep 26, 2000·99 cites·9 claims
- 0273US8536397B2Recovery of benzene and benzene derivatives from gasoline fraction and refinery streamsNOLL OLIVER·Filed 2008·Granted Sep 17, 2013·5 cites·19 claims
- 0365US9422220B2Method for purifying carboxylic acids from fermentation brothsTHYSSENKRUPP IND SOLUTIONS AG·Filed 2013·Granted Aug 23, 2016·1 cites·20 claims
- 0462US9068125B2Process for the recovery of pure aromatics from hydrocarbon fractions containing aromaticsDIEHL THOMAS·Filed 2010·Granted Jun 30, 2015·3 cites·18 claims
- 0560US8398945B2Removal of ammonia nitrogen, ammonium nitrogen and urea nitrogen by oxidation with hypochlorite-containing solutions from exhaust air in plants for producing ammonia and ureaGEHRKE HELMUT·Filed 2009·Granted Mar 19, 2013·1 cites·14 claims
- 0657US6514387B1Rectifying column for extractive distillation of close-boiling or azeotropic boiling mixturesKRUPP UHDE GMBH·Filed 1999·Granted Feb 4, 2003·27 cites·6 claims
- 0754US2025034464A1Method and device for separating a hydrocarbon-containing feedstock stream by extractive distillationTHYSSENKRUPP UHDE GMBH·Filed 2022·Application pending·0 cites
- 0854US2025041758A1Method and device for separating a hydrocarbon-containing feedstock stream by extractive distillationTHYSSENKRUPP UHDE GMBH·Filed 2022·Application pending·0 cites
- 0946US2013345486A1Recovery of benzene and benzene derivatives from gasoline fractions and refinery streamsNOLL OLIVER·Filed 2013·Application pending·0 cites
- 1043US5269158AEvaporator for a compressor-refrigerating apparatusKRUPP VDM GMBH·Filed 1992·Granted Dec 14, 1993·18 cites·9 claims
- 1141US2011301392A1Variation of tin impregnation of a catalyst for alkane dehydrogenationMIAN MUHAMMAD IQBAL·Filed 2009·Application pending·0 cites
- 1239US8648227B2Method for extracting pure styrene from a pyrolysis benzine fractionGEHRKE HELMUT·Filed 2006·Granted Feb 11, 2014·0 cites·2 claims
- 1338US10994244B2Apparatus and method for waste gas scrubbingTHYSSENKRUPP IND SOLUTIONS AG·Filed 2018·Granted May 4, 2021·0 cites·14 claims
- 1438US9181149B2Regeneration of catalysts for dehydrating alkanesGEHRKE HELMUT·Filed 2008·Granted Nov 10, 2015·0 cites·22 claims
- 1538US2020346985A1Process for producing an ammonium nitrate or calcium ammonium nitrate fertilizer granulate and fertilizer granulates produced therebyTHYSSENKRUPP IND SOLUTIONS AG·Filed 2018·Application pending·0 cites
- 1631US2002019576A1Process and facility for the separation of acid and/or alkaline constituents from hydrocarbonsFiled 2001·Application pending·0 cites
- 1731US2002017480A1Process and facility for the production of ultra-pure aromaticsFiled 2001·Application pending·0 cites
- 1831US2004000473A1Process of separating 1-methoxy-2-propanol and 2-methoxy-1-propanol from aqueous compositionsFiled 2003·Application pending·0 cites
- 1926US2012197054A1Process and apparatus for dehydrating alkanes with equalization of the product compositionGEHRKE HELMUT·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →