Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6429344 | Process for the preparation of d,I-menthol | Reinhard Langer | 2002-08-06 |
| 6077975 | Process for preparing dicycloaliphatic amines | Reinhard Langer | 2000-06-20 |
| 6054619 | Process for preparing cycloaliphatic amines | Reinhard Langer | 2000-04-25 |
| 6043395 | Process for preparing variable mixtures of cyclohexyl-amine and dicyclohexylamine | Reinhard Langer | 2000-03-28 |
| 5756864 | Process for preparing D,L-menthol from D-menthol | Gerhard Darsow | 1998-05-26 |
| 5750803 | Process for the preparation of D,L-menthol | Gerhard Darsow | 1998-05-12 |
| 5741929 | Process for preparing a mixture of amino-methyl-cyclohexanes and diamino-methyl-cyclohexanes | Gerhard Darsow | 1998-04-21 |
| 5739404 | Process for preparing a mixture of amino-methyl-cyclohexanes and diamino-methyl-cyclohexanes | Gerhard Darsow | 1998-04-14 |
| 5728883 | Process for preparing a mixture of cyclohexylamine and dicyclohexylamine | Gerhard Darsow, Wilfried Niemeier | 1998-03-17 |
| 5705700 | Process for preparing a mixture of cyclohexylamine and dicyclohexylamine | Gerhard Darsow, Wilfried Niemeier | 1998-01-06 |
| 5696303 | Process for the preparation of aliphatic .alpha., .omega.-diols | Gerhard Darsow, Heinz-Jurgen Alpers | 1997-12-09 |
| 5386060 | Palladium catalyst and its use in the preparation of a mixture of optionally substituted cyclohexylamine and optionally substituted dicyclohexylamine | Otto Immel, Gerhard Darsow, Helmut Waldmann | 1995-01-31 |
| 5322965 | Process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine using a supported noble metal catalyst | Otto Immel, Gerhard Darsow, Helmut Waldmann | 1994-06-21 |
| 4570023 | Process for the preparation of trichlorobenzenes | Raimund Wambach, Adolf Wissner, Sigurd Hartung | 1986-02-11 |
| 4456777 | Process for the preparation of 2-chloro-4-nitrotoluene | Paul R. Wambach, deceased, Adolf Wissner | 1984-06-26 |
| 4409407 | Process for the preparation of 1,3,5-trichlorobenzene | Paul R. Wambach, deceased | 1983-10-11 |
| 4298761 | Preparation of 4-nitrothioanisole | Hermann Hagemann, Erich Klauke | 1981-11-03 |