Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835829 | Purification process | Johannes Ludescher | 2004-12-28 |
| 6825345 | Process for purification of a cephalosporin derivative | Martin Decristoforo, Johannes Ludescher, Hubert Sturm | 2004-11-30 |