Issued Patents All Time
Showing 51–75 of 90 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4613692 | Process for the preparation of cinnamic acids which are optionally substituted in the nucleus | Bernhard Beitzke, Volkmar Handschuh | 1986-09-23 |
| 4609503 | Process for the preparation of 1-amino-8-naphthol-4,6-disulphonic acid (k-acid) | Horst Behre, Willi Schossler | 1986-09-02 |
| 4609756 | Process for the preparation of optionally substituted cinnamic acid in the presence of a catalyst | Alfons Dorlars, Herbert Nordt, deceased, Viktor Trescher | 1986-09-02 |
| 4594427 | Preparation of novel 5-acyloxy-4-(5H)-oxazolonium salts suited for use as intermediates for triazinone herbicides | Gerhard Bonse, Gerhard Marzolph | 1986-06-10 |
| 4582849 | Fungicidal N-substituted maleic acid imides | Gerhard Marzolph, Paul Reinecke, Wilhelm Brandes, Hans Scheinpflug | 1986-04-15 |
| 4567004 | Process for the preparation of monomethyl-substituted methylene compounds | Erich Wolters | 1986-01-28 |
| 4552890 | Plant phytopathogenic fungicidal agents based on maleimide | Gerhard Marzolph, Paul Reinecke, Wilhelm Brandes, Gerd Hanssler | 1985-11-12 |
| 4540817 | Process for the preparation of 5-amino-2,4-dimethylacetanilide | Horst Behre, Alfred Seyberlich, Ferdinand Hagedorn | 1985-09-10 |
| 4538007 | Process for the simultaneous recovery of 4-hydroxy-diphenyl and 4,4'-dihydroxydiphenyl | Eike Gabel, Horst Behre | 1985-08-27 |
| 4534905 | Process for the preparation of nitronaphthalene-sulphonic acids | Horst Behre, Gerhard Burmeister, Otto Lindner | 1985-08-13 |
| 4496736 | Process for the preparation of carboxylic acids and N-tert.-alkylamines | Gerhard Bonse, Gerhard Marzolph | 1985-01-29 |
| 4495369 | Process for the preparation of neopentylamine | Friedrich Werner, Gunther Gramm, Rudolf Braden, Heinz Ziemann | 1985-01-22 |
| 4456772 | Process for the preparation of optionally substituted fluoro-nitro-benzaldehydes | Gerhard Marzolph | 1984-06-26 |
| 4447368 | Process for the preparation of aminoarylsulphonic acids in sulfolene solvent | Herbert Emde, Peter Schnegg | 1984-05-08 |
| 4435336 | Process for the preparation of aromatic aminosulphonic acids | Herbert Emde, Peter Schnegg | 1984-03-06 |
| 4427601 | Process for preparing 1-amino-2-naphthol-4-sulphonic acid (amidol acid) | Erich Hammerschmidt, Horst Behre, Otto Lindner | 1984-01-24 |
| 4426334 | Process for isolating H acid and K acid | Horst Behre, Otto Lindner, Willi Schossler | 1984-01-17 |
| 4408044 | Preparation of 3,6-disubstituted 4-amino-1,2,4-triazin-5-ones | Thomas Schmidt, Helmut Timmler, Gerhard Bonse, Gerhard Marzolph | 1983-10-04 |
| 4407762 | Process for the isolation of 1-naphthylamine-4,8-disulphonic acid | Horst Behre, Hans W. Linden, Werner Mentzel | 1983-10-04 |
| 4393234 | Process for the preparation of 3-hydroxybenzoic acid | Eike Gabel, Ernst Goldschmitt, Werner Mentzel | 1983-07-12 |
| 4382039 | Process for the preparation of 4-nitrotoluene-2-sulphonic acid | Ernst Goldschmitt, Peter Schnegg | 1983-05-03 |
| 4375562 | Process for the preparation of bis-(amino-phenyl)-disulphides | Theodor Pfister, Rolf Putter | 1983-03-01 |
| 4370499 | 3-Nitro-acetoacetanilides, processes for their preparation and their use | Erich Wolters, Karl W. Muller, Gunter Rottloff | 1983-01-25 |
| 4370498 | Preparation of .alpha.-ketocarboxylic acid N-acylamides | Gerhard Bonse | 1983-01-25 |
| 4369143 | Process for the preparation of naphthalene-1,3,5-trisulphonic acid | Horst Behre, Wolfgang Schenk | 1983-01-18 |