Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9505711 | Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate | Michael Bock, Kai Thiele, Anne-Kathrin Merten | 2016-11-29 |
| 8829232 | Process for preparing aromatic isocyanates | Ulrich Penzel, Torsten Mattke, Andreas Wölfert, Tsung-Chieh Cheng, Kerstin Heinen +6 more | 2014-09-09 |
| 8715467 | Method for purifying a chlorine supply | Robert A. Doerr, Steven D. Gagnon, Kenneth K. Bordelon, Thomas A. Grzanka | 2014-05-06 |
| 8519179 | Method of measuring entry of water into phosgene-conducting plants | Heiner Schelling, Ulrich Penzel, Eckhard Stroefer, Dirk Hablawetz, Dave Beckwith +6 more | 2013-08-27 |
| 8512447 | Method for purifying a chlorine supply | Robert A. Doerr, Steven D. Gagnon, Kenneth K. Bordelon, Thomas A. Grzanka | 2013-08-20 |
| 8431746 | Method for producing diphenylmethane diamine | — | 2013-04-30 |