Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8841480 | Process for the preparation of light-colored iocyanates of a diphenylmethanediisocyanate series | Heiner Schelling, Hans-Juergen Pallasch, Eckhard Stroefer, Byoung-Yeon Kim | 2014-09-23 |
| 8759569 | Process for the production of isocyanates, preferably diisocyanates and polyisocyanates with solvent recirculation | Heiner Schelling, Ulrich Penzel, Eckhard Stroefer, Matthias Eiermann, Kai Thiele +1 more | 2014-06-24 |
| 8748655 | Process for preparing light-coloured isocyanates of the diphenylmethane series | Heiner Schelling, Eckhard Stroefer, Byoung-Yeon Kim | 2014-06-10 |
| 8710267 | Process for preparing MDA via the stage of the aminal | Eckhard Stroefer, Kai Thiele, Michael Zoellinger, Johnny Moors | 2014-04-29 |
| 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 |
| 6962967 | Method of purifying polyether polyols of non-volatile impurities | David D. Peters, Alexander Gershanovich | 2005-11-08 |
| 6489503 | Storage stable methylene bis(phenylisocyanate) compositions | Thirumurti Narayan, Anthony Lunato, David D. Peters, Cynthia Loop, Filip Nevejans | 2002-12-03 |
| 6469121 | Process for the production of allophanate modified isocyanates | Thirumurti Narayan, Nikolay Lebedinski | 2002-10-22 |
| 6120699 | Storage stable methylene bis(phenylisocyanate) compositions | Thirumurti Narayan, Anthony Lunato, David D. Peters, Cynthia Loop, Filip Nevejans | 2000-09-19 |