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, Karl Hermes, Stefan Sendelbach, Dieter Weinzierl | 2003-07-01 |
| 6310214 | Process for the preparation of chloropyridine sulphonic acid chlorides | Hans-Peter Michel | 2001-10-30 |