Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4404400 | Process for the preparation of 4-nitrodiphenylamines | Klaus-Peter Heise | 1983-09-13 |
| 4401833 | Process for the preparation of 4-chloro-2,6-dialkylanilines | Ulrich Schnegg | 1983-08-30 |
| 4378371 | Combating fungi with N-alkyl-carbamic acid 1,1,2-trimethyl-5-substituted-indan-4-yl esters | Horst Peuker, Detlef Grotkopp, Wilhelm Brandes | 1983-03-29 |
| 4370505 | 1,1,3,3-Substituted hydroxyindanes | Alfons Klein, Jurgen Thies | 1983-01-25 |
| 4366325 | Process for the preparation of 3-phenoxy-benzaldehydes | Helmut Fiege | 1982-12-28 |
| 4358616 | Process for the preparation of alkylthiomethylphenols and arylthiomethylphenols | Helmut Fiege | 1982-11-09 |
| 4326080 | Process for the preparation of 4-amino-diphenylamines | Siegfried Bohm | 1982-04-20 |
| 4324913 | Process for the preparation of 4-nitroso-diphenyl-amine | Lutz Kienitz | 1982-04-13 |
| 4316912 | Combating pests with 1,1-dimethyl-indan-4-yl N-alkyl-carbamic acid esters | Detlef Grotkopp, Wilhelm Brandes, Hans Scheinpflug, Peter Roessler | 1982-02-23 |
| 4304940 | Preparation of 2-alkyl- and 2-aryl-thiomethylphenols | Helmut Fiege | 1981-12-08 |
| 4294715 | Impregnating agent and its use | Alfons Klein, Rudolf Kron, Ernst Knust, Lothar Havenith | 1981-10-13 |
| 4275241 | Process for the preparation of 3-phenoxy-benzaldehydes | Siegfried Bohm, Alfons Klein | 1981-06-23 |
| 4245126 | Process for the preparation of a mixture of 2- and 4-hydroxybenzyl alcohol | Helmut Fiege, Kurt Bauer, Reiner Molleken | 1981-01-13 |
| 4238629 | Process for the preparation of a mixture of 2-and 4-hydroxybenzyl alcohol | Kurt Bauer, Reiner Molleken, Helmut Fiege | 1980-12-09 |
| 4238625 | Process for the preparation of aryloxyacetic acid | Helmut Fiege | 1980-12-09 |
| 4228181 | Combating pests with 3,3-dimethylindan-5-yl N-alkyl-carbamic acid esters | Detlef Grotkopp, Wilhelm Brandes, Hans Scheinpflug, Peter Roessler | 1980-10-14 |
| 4221719 | Process for the preparation of arylglyoxylic acids | Helmut Fiege | 1980-09-09 |
| 4218380 | Process for the preparation of arylglyoxylic acids | Helmut Fiege, Kurt Bauer, Reiner Molleken | 1980-08-19 |
| 4203145 | Chloro-diphenyl | Alfons Klein, Ernst Knust, Rudolf Kron | 1980-05-13 |
| 4193937 | Process for preparing 3-chloro- and 3,5-dichloro-anilines | Wolfgang Kiel, Werner Evertz | 1980-03-18 |
| 4192959 | Process for the preparation of pure 2-hydroxybenzyl alcohol, pure 4-hydroxybenzyl alcohol or a mixture of both hydroxy-benzyl alcohols | Kurt Bauer, Alfred Krempel, Reiner Molleken, Helmut Fiege | 1980-03-11 |