Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5621124 | Process for the alkylation of estrone derivatives | Carsten Seilz | 1997-04-15 |
| 5162351 | Benzoisothiazoles, their preparation and their use as pesticides | Ernst A. Pieroh | 1992-11-10 |
| 5064847 | 5-substituted 3-arylisoxazole derivatives, their preparation and their use as pesticides | Ernst A. Pieroh | 1991-11-12 |
| 4983755 | Substituted hydrazones, process for the preparation and their use as pesticide | Ulrich Buhmann, Ernst A. Pieroh | 1991-01-08 |
| 4897415 | 2-imino-1,3-dithietanes, their use as pesticides | Ernst A. Pieroh, Eberhard Richter, Reinhold Puttner | 1990-01-30 |