Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616818 | Process for the polynitration of aromatic compounds | Hans-Georg Pirkl, Uwe Klingler, Thomas Schieb, Gerhard Wiechers, J urgen Zimmermann | 1997-04-01 |
| 5583252 | Process for preparing 4,4'-dinitrostilbene-2,2'-disulphonic acid and its salts | Helmut Waldmann, Hans-Joachim Traenckner | 1996-12-10 |