Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5087754 | Process for the preparation of N,N-dialkylaniline | Hans-Josef Buysch, Lothar Puppe, Peter Wimmer | 1992-02-11 |
| 4600542 | Sulphonation products of naphthalene, processes for their preparation, and their use | Otto Lindner, Guido Steffan, Arnd Stuwe | 1986-07-15 |
| 4562010 | Process for the preparation of benzoic anhydride | Karl Goliasch, Herbert Muller | 1985-12-31 |
| 4476320 | Process for the preparation of fluoroaromatic compounds substituted in the o-position | Herbert Diehl, Hubert Habetz | 1984-10-09 |