Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6586601 | Method for producing 2-halopyridine-n-oxide | Volker Barth, Bruno Biedenbach, Karl Hermes, Dieter Weinzierl | 2003-07-01 |
| 5380862 | Preparation of isomer-free 2,5-dichloro-pyridine | Wolfgang Weiss, Winfried Orth, Hans W. Kleffner, Albrecht Laufer | 1995-01-10 |