Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659030 | Purification of a cephalosporin salt | Johannes Ludescher, Rainer Pucher | 1997-08-19 |
| 5616703 | Separation of cephalosporin isomers | Johannes Ludescher, Harald Summer | 1997-04-01 |