Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679826 | Process for the preparation of 2-chloroacrylonitrile | Franz-Josef Mais, Thomas Essert, Helmut Fiege, Guido Steffan | 1997-10-21 |
| 4788011 | Process for the preparation of chemical compounds obtained as solids from liquid starting substances | Roland Busse, Herbert Emde, Dietmar Mayer, Dorde Jovcic | 1988-11-29 |
| 4680146 | Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulphonic acid salts | Guido Skipka | 1987-07-14 |