Issued Patents 1989
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870182 | 4-Hydroxy-quinoline-3-carboxylic | Michael Schriewer | 1989-09-26 |
| 4859773 | Preparation of 1,8-bridged 4-quinoline-3-carboxylic acids | Michael Schriewer | 1989-08-22 |
| 4851160 | Process for the preparation of benzoic acid derivatives | Uwe Petersen, Michael Schriewer, Ernst Kysela | 1989-07-25 |
| 4847375 | Antibacterial 1,8-bridged 4-quinoline-3-carboxylic acids | Michael Schriewer, Hans-Joachim Zeiler, Karl G. Metzger | 1989-07-11 |
| 4844902 | Topically applicable formulations of gyrase inhibitors in combination with corticosteroids | — | 1989-07-04 |
| RE32975 | 4-Pyridone-3-carboxylic acids and/or derivatives thereof | Hans-Joachim Zeiler, Karl G. Metzger | 1989-07-04 |
| 4841059 | Pyridine-enamines | Michael Schriewer, Hans-Joachim Zeiler, Karl G. Metzger | 1989-06-20 |
| 4840954 | 6,7-disubstituted 1-cycloproply-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acids | Uwe Petersen, Hans-Joachim Zeiler, Karl G. Metzger | 1989-06-20 |
| 4820716 | 7-(1-Pyrrolidinyl)-quinolonecarboxylic acid derivatives | Uwe Petersen, Hans-Joachim Zeiler, Karl G. Metzger | 1989-04-11 |
| 4816451 | Antibacterial 1,8-bridged 4-quinolonecarboxylic acids | Michael Schriewer, Hermann Hagemann, Hans-Joachim Zeiler, Karl G. Metzger | 1989-03-28 |
| 4808585 | Solutions of lactic acid salts of piperazinylquinolone- and piperazinyl-azaquinolone-carboxylic acids | Robert Lammens | 1989-02-28 |
| 4808583 | Solutions of lactic acid salts of piperazinylquinolone- and piperazinyl-azaquinolone-carboxylic acids | Robert Lammens | 1989-02-28 |
| 4806539 | 1-cyclopropy l-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarboxylic acids and antibacterial agents containing them | Uwe Petersen, Hans-Joachim Zeiler, Karl G. Metzger | 1989-02-21 |
| 4804760 | Process for the preparation of 4-hydroxy-quinoline-3-carboxylic acids | Michael Schriewer | 1989-02-14 |