Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10239826 | Method for producing isocyanates | Friedhelm Steffens | 2019-03-26 |
| 9932299 | Process for separating an isocyanate prepared by phosgenation of a primary amine in the gas phase from the gaseous crude product of the phosgenation | Friedhelm Steffens | 2018-04-03 |
| 9518006 | Method for producing diaminotoluene | Bernd Pennemann, Amgad Salah Moussa | 2016-12-13 |
| 9518345 | Method for producing a spinnable silica sol material | Ekkehard Barth | 2016-12-13 |
| 9447021 | Process for the purification of aniline from gas phase hydrogenations | Michael Merkel, Peter Lehner, Amgad Salah Moussa | 2016-09-20 |