Assignee
GEHRKE HELMUT
DE·3 granted patents·1 pending application·1 citations·filing 2006–2010
Top patents by PatentIndex Score
4 records- 0160US8398945B2Removal 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
- 0239US8648227B2Method for extracting pure styrene from a pyrolysis benzine fractionGEHRKE HELMUT·Filed 2006·Granted Feb 11, 2014·0 cites·2 claims
- 0338US9181149B2Regeneration of catalysts for dehydrating alkanesGEHRKE HELMUT·Filed 2008·Granted Nov 10, 2015·0 cites·22 claims
- 0426US2012197054A1Process and apparatus for dehydrating alkanes with equalization of the product compositionGEHRKE HELMUT·Filed 2010·Application pending·0 cites
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