Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431829 | Process for the preparation of 1,4:3,6-dianhydro-D glucitol 5-nitrate | Einhart Kiegel | 1984-02-14 |
| 4386212 | Process for the production of 5-(4'-chloro-5'-sulfamoyl-2'-thenylamino)-phenyltetrazole | Friedrich Batz | 1983-05-31 |
| 4273711 | Process for the preparation of 4-hydroxycarbazole | Einhart Kiegel | 1981-06-16 |