Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10040753 | Method for preparing diisocyanates in the gas phase | Peter Lehner, Rainer Bruns | 2018-08-07 |
| 9896407 | Exhaust gas cleaning in a method for continuously producing dinitrotoluene | Thomas Knauf, Jurgen Munnig, Bernd Pennemann | 2018-02-20 |
| 9845286 | Process for operating a gas phase phosgenation plant | Thomas Knauf, Friedhelm Steffens, Rainer Bruns, Wolfgang Taube | 2017-12-19 |
| 9840461 | Method for operating a gas-phase phosgenation plant | Thomas Knauf, Friedhelm Steffens, Rainer Bruns, Wolfgang Taube | 2017-12-12 |
| 9695115 | Method for producing isocyanates | Rainer Bruns, Andreas Rausch, Stefan Wershofen, Tim Loddenkemper | 2017-07-04 |
| 9593075 | Method for producing isocyanates | Rainer Bruns, Andreas Rausch, Stefan Wershofen, Tim Loddenkemper | 2017-03-14 |
| 9480958 | Device and method for producing phosgene | Ulrich Hollmann, Friedhelm Steffens, Thomas Runowski | 2016-11-01 |
| 9416094 | Process for the preparation of di- and polyamines of the diphenylmethane series | Thomas Knauf, Stefan Wershofen, Richard Adamson, Karsten Becker | 2016-08-16 |
| 9365503 | Process for the preparation of isocyanates in the gas phase | Klaus Biskup, Rainer Bruns, Lars Padeken, Bernd Pennemann, Fritz Pohl +2 more | 2016-06-14 |
| 9328064 | Method for producing isocyanates in the gas phase | Rainer Bruns, Andreas Rausch, Stefan Wershofen, Tim Loddenkemper | 2016-05-03 |
| 9309184 | Method for producing diamines and polyamines of the diphenylmethane series | Thomas Knauf, Stefan Wershofen, Richard Adamson, Karsten Becker | 2016-04-12 |
| 9238737 | Radiation-curable, electrically conductive coating mixture | Matthias Koch, Kerstin Unger, Andreas Kunz, Eva Wilke | 2016-01-19 |
| 9150493 | Method for producing aromatic amines in the liquid phase | Bernd Pennemann | 2015-10-06 |
| 9102594 | Method for producing isocyanates in the gas phase | Rainer Bruns, Andreas Rausch, Stefan Wershofen, Tim Loddenkemper | 2015-08-11 |
| 9051243 | Process for the preparation of isocyanates in the gas phase | Rainer Bruns, Andreas Rausch | 2015-06-09 |
| 9024057 | Process for the preparation of isocyanates in the gas phase | Klaus Biskup, Rainer Bruns, Fritz Pohl, Friedhelm Steffens, Volker Michele | 2015-05-05 |
| 8563768 | Process for the preparation of isocyanates | Rainer Bruns, Friedhelm Steffens, Herbert Stutz | 2013-10-22 |
| 8563767 | Method for producing isocyanates in the gas phase | Rainer Bruns, Knut Sommer | 2013-10-22 |
| 8293334 | Preliminary metallizing treatment of zinc surfaces | Karsten Hackbarth, Eva Wilke, Marcel Roth, Reiner Wark, Michael Wolpers +4 more | 2012-10-23 |
| 8153838 | Process for producing isocyanates | Andreas Bulan, Rainer Weber, Gerhard Moormann, Friedhelm Kamper, Berthold Keggenhoff | 2012-04-10 |
| 8065958 | Use of polymers comprising amino groups modified by acid groups for producing humidifying agents or humidifying agent concentrates, in addition to humidifying agent circuits for offset printing | Roland Thiem, Heike Becker, Martin Scholtissek | 2011-11-29 |
| 8063241 | Process for the preparation of toluene-diisocyanate | Lars Padeken, Bernd Pennemann, Friedhelm Steffens, Lothar Weismantel | 2011-11-22 |
| 7919181 | Conductive, organic coatings with low layer thickness and good plasticity | Eva Wilke, Manuela Göske-Krajnc, Reiner Wark, Guadalupe Sanchis Otero, Stephan Müller +3 more | 2011-04-05 |
| 7709058 | Process for coating metal sheet, especially zinc sheet | Andreas Kunz, Eva Wilke, Hans Clodt | 2010-05-04 |
| 7645900 | Process for the preparation of isocyanates | Matthias Boehm, Richard Adamson, Friedhelm Steffens, Anke Hielscher | 2010-01-12 |