Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9815769 | Process for the preparation of di- and polyamines from the diphenylmethane series | Stefan Wershofen, Klaus-Gerd Gruner, Esteve Obis Torruella | 2017-11-14 |
| 9796669 | Process for preparing isocyanates | Andreas Rausch, Charles Bjoerndahl, Matthias Ehlers, Peter Plathen, Carlos Alvarez Herrero +1 more | 2017-10-24 |
| 9771291 | Process for working up waste water from nitrobenzene preparation | Antoni Mairata, Erik Sluyts, Jan Van Tricht | 2017-09-26 |
| 9771290 | Process for working up waste water from nitrobenzene preparation | Antoni Mairata, Erik Sluyts, Jan Van Tricht | 2017-09-26 |
| 9682917 | Method for treating a substance mixture comprising an aromatic amine, in particular a substance mixture of raw aniline | Michael Merkel, Cliff Andre Peters, Thorsten Schmidt | 2017-06-20 |
| 9469594 | Method for stopping a reaction during the production of aromatic amines from nitroaromatics | Michael Merkel, Cliff Andre Peters, Thorsten Schmidt, Karl-Heinz Wilke | 2016-10-18 |
| 9416094 | Process for the preparation of di- and polyamines of the diphenylmethane series | Wolfgang Lorenz, Stefan Wershofen, Richard Adamson, Karsten Becker | 2016-08-16 |
| 9364810 | Chemical reactor with knitted wire mesh fabric as a holding device for particles | Michael Merkel, Karl-Heinz Wilke | 2016-06-14 |
| 9309184 | Method for producing diamines and polyamines of the diphenylmethane series | Wolfgang Lorenz, Stefan Wershofen, Richard Adamson, Karsten Becker | 2016-04-12 |
| 9302978 | Process for the preparation of nitrobenzene by adiabatic nitration | Antoni Mairata | 2016-04-05 |
| 9290438 | Method for starting a reaction during the production of aromatic amines from nitroaromatics | Michael Merkel, Cliff Andre Peters, Thorsten Schmidt | 2016-03-22 |
| 9284256 | Process for the production of nitrobenzene by adiabatic nitration | Michael Merkel | 2016-03-15 |
| 9284255 | Method for producing nitrobenzene by adiabatic nitriding | Alexandre Racoes, Wolfgang Dohmen, Antoni Mairata | 2016-03-15 |
| 9260377 | Method for producing nitrobenzene by adiabatic nitriding | Michael Merkel, Antoni Mairata | 2016-02-16 |
| 9227909 | Method for the continuous production of nitrobenzene | Jurgen Munnig, Joerg Schmiedler | 2016-01-05 |
| 9012700 | Method for continuous production of nitrobenzene | Michael Merkel | 2015-04-21 |
| 8729309 | Method for producing nitrobenzene by adiabatic nitriding | Alexandre Racoes, Andreas Rausch, Dietrich Wulf | 2014-05-20 |
| 7781624 | Process for the preparation of nitrobenzene by adiabatic nitration | Andreas Rausch, Jeffrey Bolton, Alexandre Racoes | 2010-08-24 |
| 7763759 | Continuous process for the manufacture of nitrobenzene | Alexandre Racoes, Wolfgang Dohmen, Andreas Rausch | 2010-07-27 |
| 7344650 | Process for the working-up of waste waters containing aromatic nitro compounds | Franz-Ulrich Von Gehlen, Wolfgang Dohmen, Jörg Schmiedler | 2008-03-18 |
| 7326816 | Process for the production of nitrobenzene | Franz-Ulrich Von Gehlen, Jörg Schmiedler, Klaus Pilarczyk, Peter Drinda | 2008-02-05 |
| 6759497 | Modified polymers with a high proportion of cis-position double bonds | Michael Grun, Wilfried Braubach | 2004-07-06 |
| 6583246 | Modifiers for anionic polymerization | Michael Grun, Wilfried Braubach | 2003-06-24 |
| 6521720 | Continuous process for producing elastomers | Josef-Werner Naunheim, Klaus Wiemann | 2003-02-18 |
| 6492476 | Catalyst based on rare earth metal compounds | Wilfried Braubach | 2002-12-10 |