Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6398917 | Apparatus for the purification of commercially available diphenyl-p-phenylenediamine (DPPD) | Albert-Johannes Frings, Michael Horn, Jaroslaw Monkiewicz, Hans-Guenther Srebny, Burkhard Standke +1 more | 2002-06-04 |
| 6026880 | Process and apparatus for the purification of commercially available diphenyl-p-phenylenediamine (DPPD) | Albert-Johannes Frings, Michael Horn, Jaroslaw Monkiewicz, Hans-Guenther Srebny, Burkhard Standke +1 more | 2000-02-22 |
| 5945554 | Process for the stabilizing of an organosilane | Albert-Johannes Frings, Michael Horn, Jaroslaw Monkiewicz, Hans-Guenther Srebny, Burkhard Standke +1 more | 1999-08-31 |
| 5869728 | Process for preparing fluoroalkyl-containing organosilicon compounds, and their use | Albert-Johannes Frings, Michael Horn, Jaroslaw Monkiewicz, Burkhard Standke | 1999-02-09 |
| 5763666 | Process and apparatus for the purification of commercially available diphenyl-p-phenylenediamine (DPPD) | Albert-Johannes Frings, Michael Horn, Jaroslaw Monkiewicz, Hans-Guenther Srebny, Burkhard Standke +1 more | 1998-06-09 |