Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7847093 | Processes for the preparations of cefepime | Johannes Ludescher, Hubert Sturm | 2010-12-07 |
| 7825241 | Cefdinir intermediate | Peter Kremminger, Johannes Ludescher | 2010-11-02 |
| 7355041 | Intermediates in cefprozil production | Julia Greil, Johannes Ludescher | 2008-04-08 |
| 7250508 | Cefdinir intermediate | Peter Kremminger, Johannes Ludescher | 2007-07-31 |
| 6949641 | Crystalline β-lactam intermediate | Julia Greil, Johannes Ludescher, Klaus Totschnig | 2005-09-27 |
| 6787649 | Cephalosporin intermediates | Peter Kremminger, Johannes Ludescher | 2004-09-07 |
| 6489470 | Process for the preparation of cefpodoxime proxetil diastereoisomers | Julia Greil, Johannes Ludescher, Klaus Totschnig | 2002-12-03 |
| 6350869 | Crystalline amine salt of cefdinir | Hubert Sturm, Johannes Ludescher | 2002-02-26 |
| 6333409 | Process for the purification of a 3-cephem-4-carboxylic acid derivative | Johannes Ludescher, Bernhard C. Prager | 2001-12-25 |
| 6313289 | Purification process | Johannes Ludescher, Ludwig Miller, Hubert Sturm, Werner Veit, Martin Decristoforo | 2001-11-06 |
| 6235897 | Separation of cephalosporin isomers | Johannes Ludescher, Harald Summer | 2001-05-22 |
| 6136967 | Process for the purification of a 3-cephem-4-carboxylic acid derivative | Johannes Ludescher, Bernhard C. Prager | 2000-10-24 |
| 5869648 | Process for the purification of a 3-cephem-4-carboxylic acid derivative | Johannes Ludescher, Bernhard C. Prager | 1999-02-09 |
| 5861508 | Purification of a cephalosporin salt | Johannes Ludescher, Rainer Pucher | 1999-01-19 |
| 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 |