Issued Patents All Time
Showing 51–75 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5145958 | Process for the preparation of 2,4- or 2,6-dihalogeno-aniline | Wolfram Kissener | 1992-09-08 |
| 5130493 | Process for the preparation of o-hydroxy-benzaldehydes | Albert Schnatterer, Karl H. Neumann | 1992-07-14 |
| 5105036 | Process for ring-chlorination of aromatic hydrocarbons | Franz-Josef Mais | 1992-04-14 |
| 5101075 | Process for the preparation of bis-and tris-(3-dimethylaminopropyl)amine | Josef Kasbauer, Wolfgang Kiel | 1992-03-31 |
| 5096625 | Process for the sulphoxidation of N-paraffins | Josef Kasbauer | 1992-03-17 |
| 5095157 | Process for the preparation of 2-chloro-4-nitro-alkylbenzene | Franz-Josef Mais | 1992-03-10 |
| 5059716 | Process for the preparation of aldehydes | Winfried Joentgen | 1991-10-22 |
| 5010193 | Preparation of phosphoric acid derivatives and intermediates | Fritz Maurer, Reinhard Lantzsch, Albert Schnatterer | 1991-04-23 |
| 4990707 | Process for the ring chlorination of aromatic hydrocarbons | Franz-Josef Mais | 1991-02-05 |
| 4990687 | Preparation of 4-methyl-2-cyclohexylphenol | Alfons Klein, Lothar Puppe, Werner Jeblick | 1991-02-05 |
| 4973759 | Process for the isolation of alkylated aromatic amines | Alfons Klein | 1990-11-27 |
| 4956505 | Process for the preparation of 4,4-dimethyl-1-(p-chlorophenyl)pentan-3-one | Franz-Josef Mais, Karl-Wilhelm Henneke | 1990-09-11 |
| 4948886 | Process for the preparation of benzothiazepinone derivatives | Franz-Josef Mais | 1990-08-14 |
| 4929766 | Process are the preparation of p-hydroxy-benzaldehydes | Albert Schnatterer | 1990-05-29 |
| 4925994 | Process for the ring chlorination of aromatic hydrocarbons | Franz-Josef Mais | 1990-05-15 |
| 4912596 | Dielectric liquids | Rudolf Kron, Alfons Klein | 1990-03-27 |
| 4871484 | Process for the preparation of 2,2-bis-chloro-methylalkanecarboxylic acid chlorides | Manfred Jautelat, Dieter Arlt | 1989-10-03 |
| 4851596 | Process for nucleus-chlorination of aromatic hydrocarbons | Franz-Josef Mais, Kai Rohlk, Karlfried Wedemeyer | 1989-07-25 |
| 4827057 | Process for preparing 1,2-dichlorobenzene | Josef Kasbauer, Herbert Schmidt, Karlfried Wedemeyer | 1989-05-02 |
| 4827058 | Process for the removal of m-chlorotoluene from chlorotoluene mixtures | Franz-Josef Mais | 1989-05-02 |
| 4824975 | Process for the preparation of oxetane-3-carboxylic acids | Manfred Jautelat, Dieter Arlt | 1989-04-25 |
| 4820871 | Process for the preparation of N,N-diaryl-ureas | Wolfram Kissener, Joachim Franke, Karlfried Wedemeyer | 1989-04-11 |
| 4366325 | Process for the preparation of 3-phenoxy-benzaldehydes | Karlfried Wedemeyer | 1982-12-28 |
| 4358616 | Process for the preparation of alkylthiomethylphenols and arylthiomethylphenols | Karlfried Wedemeyer | 1982-11-09 |
| 4304940 | Preparation of 2-alkyl- and 2-aryl-thiomethylphenols | Karlfried Wedemeyer | 1981-12-08 |