Buettner; Johannes

Patent Applications and Registrations

Patent applications and USPTO patent grants for Buettner; Johannes.The latest application filed is for "process for the preparation of nitrated aromatics and mixtures thereof".

Company Profile

0.10.6

Buettner; Johannes - Ruhland 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
Optimized introduction of the starting materials for a process for preparing aromatic amines by hydrogenation of nitroaromatics Grant 9,308,515 - Waters , et al. April 12, 2	2016-04-12
Process for the preparation of nitrated aromatics and mixtures thereof Grant 9,079,822 - Mackenroth , et al. July 14, 2	2015-07-14
Process For The Preparation Of Nitrated Aromatics And Mixtures Thereof App 20150166461 - MACKENROTH; Wolfgang ; et al.	2015-06-18
Monitoring of the stoichiometric ratio in the reaction of nitroaromatics with hydrogen Grant 8,895,783 - Raichle , et al. November 25, 2	2014-11-25
Optimized Introduction Of The Starting Materials For A Process For Preparing Aromatic Amines By Hydrogenation Of Nitroaromatics App 20140341783 - WATERS; Gerrit ; et al.	2014-11-20
Optimized introduction of the starting materials for a process for preparing aromatic amines by hydrogenation of nitroaromatics Grant 8,835,688 - Waters , et al. September 16, 2	2014-09-16
Process for preparing toluenediamine by hydrogenation of dinitrotoluene Grant 8,609,899 - Raichle , et al. December 17, 2	2013-12-17
Monitoring Of The Stoichiometric Ratio In The Reaction Of Nitroaromatics With Hydrogen App 20130211141 - RAICHLE; Andreas ; et al.	2013-08-15
Process For The Preparation Of Nitrated Aromatics And Mixtures Thereof App 20110306795 - Mackenroth; Wolfgang ; et al.	2011-12-15
Method for producing dinitrotoluene Grant 7,851,661 - Buettner , et al. December 14, 2	2010-12-14
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
Method for extracting nitrocresols from waste water produced in the manufacture of mononitrotoluene and use of said extract App 20070043244 - Buettner; Johannes	2007-02-22

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