Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7790804 | Process for stripping polymer polyols | Michael Brockelt, Manfred Dietrich, Markus Hadley, Jan Thomas Leu, Guido Naberfeld +1 more | 2010-09-07 |
| 7435319 | Process for the mild distillative separation of mixtures | Dieter Heinz, Jan Thomas Leu, Johannes-Peter Schafer, Kai Fahrenkamp, Wolfgang Scheinert +2 more | 2008-10-14 |
| 5646328 | Process for removing by-products from diurethanes | Oswald Wilmes, Jurgen Dahmer | 1997-07-08 |
| 5336376 | Distillation column with vaporous sidestream removal | Siegfried Taurat, Heinrich Steude, Heinz-Jurgen Alpers | 1994-08-09 |
| 5149890 | Process for the isolation of pure dinitrotoluenes | Gunther Rauchschwalbe, Heinz U. Blank, Kaspar Hallenberger, Gerhard Ruffert | 1992-09-22 |