Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6983131 | Circuit configuration for direct modulation | — | 2006-01-03 |
| 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 |
| 6531904 | CIRCUIT CONFIGURATIONS HAVING A DELAY DEVICE, A MULTIPLIER, FILTER AND/OR A MASTER-SLAVE FLIP-FLOP FOR GENERATING: AN OUTPUT SIGNAL BEING ORTHOGONAL TO AN INPUT SIGNAL, AN OUTPUT SIGNAL HAVING A FREQUENCY BEING DOUBLE THAT OF AN INPUT SIGNAL, OR TWO OUTPUT SIGNALS BEING ORTHOGONAL TO ONE ANOTHER | Josef Fenk, Robert Grant Irvine | 2003-03-11 |
| 6369666 | Modulator circuit configuration | Martin Simon | 2002-04-09 |
| 6313289 | Purification process | Johannes Ludescher, Ludwig Miller, Hubert Sturm, Martin Decristoforo, Siegfried Wolf | 2001-11-06 |
| 6284888 | Vinyl-ACA purification process | Johannes Ludescher | 2001-09-04 |
| 5663674 | Circut configuration for generating a reference current | Stefan Beyer, Bruno Scheckel, Jean Wilwert | 1997-09-02 |
| 5598128 | Operational amplifier with high common mode rejection | Robert Grant Irvine | 1997-01-28 |
| 5585485 | Cephalosporin intermediate products | Gerd Ascher, Hubert Sturm, Heinrich Thaler | 1996-12-17 |
| 5566360 | Transmitter/receiver configuration for higher frequencies | Josef Fenk, Helmut Herrmann, Peter Sehrig | 1996-10-15 |
| 5484928 | 2-(2-aminothiazol-4-yl)-2-oxoacetic acid derivatives | Hubert Sturm, Heinrich Thaler | 1996-01-16 |
| 5382849 | Circuit configuration for signal limitation and field intensity detection | Josef Fenk | 1995-01-17 |
| 5182383 | Stable, crystalline form of a cephalosporin intermediate product | Bernhard C. Prager, Karl Wessely | 1993-01-26 |
| 4540525 | Method for producing 1-naphthol-4-sulphonic acid | — | 1985-09-10 |