Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6333409 | Process for the purification of a 3-cephem-4-carboxylic acid derivative | Johannes Ludescher, Siegfried Wolf | 2001-12-25 |
| 6136967 | Process for the purification of a 3-cephem-4-carboxylic acid derivative | Johannes Ludescher, Siegfried Wolf | 2000-10-24 |
| 5869648 | Process for the purification of a 3-cephem-4-carboxylic acid derivative | Johannes Ludescher, Siegfried Wolf | 1999-02-09 |
| 5580978 | Process for the production of 7-ACA derivatives | Hubert Sturm | 1996-12-03 |
| 5574155 | Process for the synthesis of the disodium salt hemiheptahydrate of ceftriaxone | Johann Danklmaier, Ingolf Macher | 1996-11-12 |
| 5182383 | Stable, crystalline form of a cephalosporin intermediate product | Karl Wessely, Werner Veit | 1993-01-26 |
| 5066798 | Crystalline cephalosporin derivative | — | 1991-11-19 |
| 4954624 | Process for the production of cephalosporin derivatives | — | 1990-09-04 |
| 4826972 | Method for preparing crystalline cephalosporin derivative | — | 1989-05-02 |
| 4562253 | Deacylation of amides | Peter Punk, Heinrich Thaler | 1985-12-31 |