Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4952697 | Process for the preparation of 2-nitro-3-aminopyridine, and the intermediates which are formed in the reaction | Siegfried Planker, Klaus Warning, Gunter H. Herbst, deceased, Ulrike M. Herbst, Georg Schaeffer | 1990-08-28 |