Gehrke; Helmut

Patent Applications and Registrations

Patent applications and USPTO patent grants for Gehrke; Helmut.The latest application filed is for "process for producing an ammonium nitrate or calcium ammonium nitrate fertilizer granulate and fertilizer granulates produced thereby".

Company Profile

3.13.15

Gehrke; Helmut - Bergkamen DE
Gehrke, Helmut - Beckum-Vellern DE
Gehrke; Helmut - Ludenscheid DE

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Apparatus and method for waste gas scrubbing Grant 10,994,244 - Gehrke , et al. May 4, 2	2021-05-04
Process For Producing An Ammonium Nitrate Or Calcium Ammonium Nitrate Fertilizer Granulate And Fertilizer Granulates Produced Thereby App 20200346985 - GEHRKE; Helmut ; et al.	2020-11-05
Apparatus And Method For Waste Gas Scrubbing App 20200047118 - GEHRKE; Helmut ; et al.	2020-02-13
Method for purifying carboxylic acids from fermentation broths Grant 9,422,220 - Kleiber , et al. August 23, 2	2016-08-23
Method For Purifying Carboxylic Acids From Fermentation Broths App 20150344397 - Kleiber; Michael ; et al.	2015-12-03
Regeneration of catalysts for dehydrating alkanes Grant 9,181,149 - Gehrke , et al. November 10, 2	2015-11-10
Process for the recovery of pure aromatics from hydrocarbon fractions containing aromatics Grant 9,068,125 - Diehl , et al. June 30, 2	2015-06-30
Method for extracting pure styrene from a pyrolysis benzine fraction Grant 8,648,227 - Gehrke February 11, 2	2014-02-11
Recovery Of Benzene And Benzene Derivatives From Gasoline Fractions And Refinery Streams App 20130345486 - Noll; Oliver ; et al.	2013-12-26
Recovery of benzene and benzene derivatives from gasoline fraction and refinery streams Grant 8,536,397 - Noll , et al. September 17, 2	2013-09-17
Removal of ammonia nitrogen, ammonium nitrogen and urea nitrogen by oxidation with hypochlorite-containing solutions from exhaust air in plants for producing ammonia and urea Grant 8,398,945 - Gehrke , et al. March 19, 2	2013-03-19
Process And Apparatus For Dehydrating Alkanes With Equalization Of The Product Composition App 20120197054 - Gehrke; Helmut ; et al.	2012-08-02
Process For The Recovery Of Pure Aromatics From Hydrocarbon Fractions Containing Aromatics App 20120067776 - Diehl; Thomas ; et al.	2012-03-22
Variation Of Tin Impregnation Of A Catalyst For Alkane Dehydrogenation App 20110301392 - Mian; Muhammad Iqbal ; et al.	2011-12-08
Removal Of Ammonia Nitrogen, Ammonium Nitrogen And Urea Nitrogen By Oxidation With Hypochlorite-containing Solutions From Exhaust Air In Plants For Producing Ammonia And Urea App 20110280779 - Gehrke; Helmut ; et al.	2011-11-17
Recovery Of Benzene And Benzene Derivatives From Gasoline Fraction And Refinery Streams App 20100236916 - Noll; Oliver ; et al.	2010-09-23
Regeneration Of Catalysts For Dehydrating Alkanes App 20100234660 - Gehrke; Helmut ; et al.	2010-09-16
Method for Extracting Pure Styrene From a Pyrolysis Benzine Fraction App 20090306445 - Gehrke; Helmut	2009-12-10
Process of separating 1-methoxy-2-propanol and 2-methoxy-1-propanol from aqueous compositions App 20040000473 - Hofen, Willi ; et al.	2004-01-01
Process and facility for the production of ultra-pure aromatics App 20020017480 - Emmrich, Gerhard ; et al.	2002-02-14
Process and facility for the separation of acid and/or alkaline constituents from hydrocarbons App 20020019576 - Emmrich, Gerhard ; et al.	2002-02-14
Evaporator for a compressor-refrigerating apparatus Grant 5,269,158 - Bitter , et al. December 14, 1	1993-12-14

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