Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6398917 | Apparatus for the purification of commercially available diphenyl-p-phenylenediamine (DPPD) | Albert-Johannes Frings, Michael Horn, Peter Jenker, Jaroslaw Monkiewicz, Burkhard Standke +1 more | 2002-06-04 |