Allardt; Holger

Patent Applications and Registrations

Patent applications and USPTO patent grants for Allardt; Holger.The latest application filed is for "process for acidic scrubbing of dinitrotoluene in the presence of hydrocyanic acid".

Company Profile

0.10.8

Allardt; Holger - Schwarzheide 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
Process for acidic scrubbing of dinitrotoluene in the presence of hydrocyanic acid Grant 9,688,606 - Neto , et al. June 27, 2	2017-06-27
Process for workup of NO.sub.x-containing offgases from wastewater streams of nitration plants Grant 9,630,866 - Fritz , et al. April 25, 2	2017-04-25
Process For Acidic Scrubbing Of Dinitrotoluene In The Presence Of Hydrocyanic Acid App 20160251302 - NETO; SAMUEL ; et al.	2016-09-01
Process for scrubbing dinitrotoluene Grant 9,249,083 - Neto , et al. February 2, 2	2016-02-02
Process For Scrubbing Dinitrotoluene App 20140039227 - NETO; Samuel ; et al.	2014-02-06
Prevention of precipitation from nitrated aromatic crude products Grant 8,637,712 - Allardt , et al. January 28, 2	2014-01-28
Acidic sludge adsorption of DNT wastewaters Grant 8,529,771 - Fritz , et al. September 10, 2	2013-09-10
Acid Toluene Extraction Of Dnt Wastewaters App 20120248038 - Fritz; Ruediger ; et al.	2012-10-04
Acidic Sludge Adsorption Of Dnt Wastewaters App 20120234773 - Fritz; Ruediger ; et al.	2012-09-20
Process For Workup Of Nox-containing Offgases From Wastewater Streams Of Nitration Plants App 20120228218 - Fritz; Ruediger ; et al.	2012-09-13
Prevention Of Precipitation From Nitrated Aromatic Crude Products App 20120197047 - ALLARDT; Holger ; et al.	2012-08-02
Process And Apparatus For Separating Nitroaromatics From Wastewater App 20110284391 - FRITZ; Rudiger ; et al.	2011-11-24
Process for distillatively removing dinitrotoluene from process wastewater from the preparation of dinitrotoluene by nitrating of toluene with nitrating acid Grant 7,928,270 - Penzel , et al. April 19, 2	2011-04-19
Process For The Separation By Distillation Of Dinitrotoluene From Process For The Separation By Distillation Of Dinitrotoluene From Process For The Separation By Distillation Of Dinitrotoluene From Process Wastewater From The Preparation Of Dinitrotoluene By Nitration Of Toluene By Means Of Nitratin App 20090043135 - Penzel; Ulrich ; et al.	2009-02-12
Method for extracting nitrocresols from waste water produced in the manufacture of mononitrotoluene and use of said extract Grant 7,449,610 - Buettner , et al. November 11, 2	2008-11-11

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