Issued Patents 1997
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684217 | Process for preparing 3-fluoro-4,6-dichlorotoluene | Franz-Josef Mais, Werner Bussmann | 1997-11-04 |
| 5679826 | Process for the preparation of 2-chloroacrylonitrile | Franz-Josef Mais, Thomas Essert, Friedrich Durholz, Guido Steffan | 1997-10-21 |
| 5672708 | Process for the preparation of N-arylaminoacrylic acid derivatives and the use of N-arylaminoacrylic acid derivatives thus prepared for the preparation of 4-quinolone-3-carboxylic acid derivatives | Gunter Rauchschwalbe, Bernhard Beitzke, Wolfgang Eymann | 1997-09-30 |
| 5672719 | Process for the preparation of isobenzofurandiones | Josef Kasbauer | 1997-09-30 |
| 5670694 | Process for the preparation of 2,4-dichloro-5-fluorobenzonitrile and 2,6-dichloro-3-fluorobenzonitrile | Ferdinand Hagedorn, Reinhard Lantzsch | 1997-09-23 |
| 5659088 | Process for the preparation of 4-fluorothiophenol | Ferdinand Hagedorn, Wolfgang Eymann, Otto Neuner, Herbert Muller | 1997-08-19 |
| 5650542 | Process for the preparation of 2-chloro-6-nitrophenyl alkyl sulphides and novel 2-chloro-6-nitrophenyl alkyl sulphides | Ferdinand Hagedorn | 1997-07-22 |
| 5629441 | 2-(arylimino-methyl)-3-dialkylaminoacrylonitriles, a process for their preparation and their use | Helmut Kraus, Horst Behre | 1997-05-13 |
| 5591869 | Process for the preparation of methylene compounds and the novel compound 2-(2,4-Dichloro-5-fluorobenzyl)thiophene | Ferdinand Hagedorn | 1997-01-07 |