Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047586 | Process for the preparation of 4-acylamino-2-aminoalkoxybenzenes | Hartmut Heise | 1991-09-10 |
| 4954657 | Process for the preparation of o-nitrophenetole | Hartmut Heise | 1990-09-04 |
| 4847426 | Process for the preparation of 2,4-dinitrophenyl ethers | Dieter Heck, Hartmut Heise | 1989-07-11 |
| 4540815 | Process for the preparation of pure 3-acetylamino-anilines | Theodor Papenfuhs | 1985-09-10 |