Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369259 | Method of preparing 4,5,6-trichloro-and 2,4,5,6-tetrachloropyrimidine | Guido Steffan | 2002-04-09 |
| 6162917 | Method of preparing 4,5,6-trichloro- and 2,4,5,6-tetrachloropyrimidine | Guido Steffan | 2000-12-19 |
| 5840975 | Process for preparing nucleus-halogenated benzoyl chlorides | Reinhold Gehring, Herbert Muller, Werner Bussmann | 1998-11-24 |