Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5744618 | Process for the preparation of ascorbic acid | Ulrich Fechtel | 1998-04-28 |
| 5518588 | Method for preparing 3-aminopyridines from 3-nitropyridines | Ulrich Fechtel, Heinz-Hermann Bokel | 1996-05-21 |