Zoellinger; Michael
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zoellinger; Michael.The latest application filed is for "acid toluene extraction of dnt wastewaters".
- Zoellinger; Michael - Eislingen DE
- Zoellinger; Michael - Salach N/A DE
- Zoellinger; Michael - Dresden DE
| Patent | Date |
|---|---|
| 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 preparing aromatic amines Grant 8,981,155 - Haase , et al. March 17, 2 | 2015-03-17 |
| Process for preparing an isocyanate Grant 8,853,443 - Breuninger , et al. October 7, 2 | 2014-10-07 |
| Process for preparing MDA via the stage of the aminal Grant 8,710,267 - Stroefer , et al. April 29, 2 | 2014-04-29 |
| Method for producing color-stable MDA and MDI Grant 8,614,352 - Stroefer , et al. December 24, 2 | 2013-12-24 |
| Process for preparing toluenediamine by hydrogenation of dinitrotoluene Grant 8,609,899 - Raichle , et al. December 17, 2 | 2013-12-17 |
| 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 |
| Process For Preparing Aromatic Amines App 20120215029 - Haase; Stefanie ; et al. | 2012-08-23 |
| Method For Producing Color-stable Mda And Mdi App 20120046497 - Stroefer; Eckhard ; et al. | 2012-02-23 |
| Process For Preparing Mda Via The Stage Of The Aminal App 20120035396 - Stroefer; Eckhard ; et al. | 2012-02-09 |
| Process And Apparatus For Separating Nitroaromatics From Wastewater App 20110284391 - FRITZ; Rudiger ; et al. | 2011-11-24 |
| Process For Preparing An Isocyanate App 20110263892 - Breuninger; Daniel ; et al. | 2011-10-27 |
| Process For Lightening The Color Of Polyisocyanates With Ozone-containing Gas App 20110028579 - Zoellinger; Michael ; et al. | 2011-02-03 |
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