Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7002023 | Method for producing 1 substituted 5-chloro-4 methly pyrazoles | Hans Rupert Merkle | 2006-02-21 |
| 6538135 | Method for producing 4-amino-5-chloro-1-phenyl pyridazinone-(6) | Hans Rupert Merkle, Klaus Herbig, Helmut Fröhlich | 2003-03-25 |
| 6515139 | Method for producing N-substituted 2-pyrazoline-5-one | Hans Rupert Merkle, Knut Koob | 2003-02-04 |
| 6252069 | Method for the production of 3-isopropyl-1H-2, 1,3-benzothiadiazine-4 (3H)-one-2,2-dioxide | Hans Rupert Merkle, Otto Worz, Hanspeter Hansen, Albrecht Muller, Kurt Benz | 2001-06-26 |
| 6229022 | Method for producing substituted pyrazoles | Hans Rupert Merkle | 2001-05-08 |
| 5939584 | Process for preparing solid, free-flowing water-soluble salts of aryloxy-C.sub.1 -C.sub.4 -alkanecarboxylic acids | Hans Rupert Merkle, Karl Brenner, Michael Schönherr, Anne van Gastel | 1999-08-17 |
| 5847154 | Method of preparing 1,2-dimethyl-3,5-diarylpyrazolium methylsulfates | Hans Rupert Merkle | 1998-12-08 |
| 5840913 | Process for preparing N-substituted pyrazoles | Hans Rupert Merkle, Jürgen Schröder | 1998-11-24 |
| 5763659 | Preparation of optically active 2-halopropionic acids | Hans Rupert Merkle, Hanspeter Hansen, Bernhard Zipperer | 1998-06-09 |
| 5744614 | Preparation of 3,5-diarylpyrazoles | Hans Rupert Merkle | 1998-04-28 |
| 5569769 | Preparation of pyrazole and its derivatives | Hans Rupert Merkle | 1996-10-29 |
| 5128480 | Preparation of 3-methylpyrazole | Hans Rupert Merkle | 1992-07-07 |
| 4996327 | Preparation of pyrazole and its derivatives | Hans Rupert Merkle | 1991-02-26 |