Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822095 | Method for producing 4,6-dichloropyrimidine | Franz-Josef Mais, Gunther Cramm, Alexander Klausener | 2004-11-23 |
| 6562970 | Method for producing 4-chloro-6-hydroxypyrimidine | Franz-Josef Mais, Gunther Cramm, Alexander Klausener | 2003-05-13 |
| 6525198 | Method for producing 4,6-dichloropyrimidine with sulfur compounds and phosphorus compounds | Franz-Josef Mais, Alexander Klausener, Gunther Cramm | 2003-02-25 |
| 6504059 | Process for converting nitrobenzene to a free aminophenol | Franz-Josef Mais, Albrecht Marhold | 2003-01-07 |
| 6455725 | Substituted cinnamic acids and cinnamic acid esters | Walter Lange, Joachim Komoschinski, Ernst Kysela | 2002-09-24 |
| 6441171 | Method for the production of 4,6-dichloropyrimidine with the aid of phosgene | Franz-Josef Mais, Gunther Cramm, Alexander Klausener | 2002-08-27 |
| 6441170 | Method of producing 4,6-dichloropyrimidine with acid chlorides | Franz-Josef Mais, Gunther Cramm, Alexander Klausener | 2002-08-27 |
| 6433228 | Process for preparing 2-halogenated indan-1-ones | Joachim Komoschinski, Helmut Fiege, Klaus-Christian Paetz | 2002-08-13 |
| 6369259 | Method of preparing 4,5,6-trichloro-and 2,4,5,6-tetrachloropyrimidine | Georg Hardenbicker | 2002-04-09 |
| 6355827 | Process for preparing 2-cyanoindan-1-ones | Joachim Komoschinski, Helmut Fiege | 2002-03-12 |
| 6296788 | Process for the preparation of Grignard reagents and novel Grignard reagents | Guido Giffels | 2001-10-02 |
| 6294502 | Thermally-responsive record material | Mark Robert Fisher, John Charles DeBraal, Peter Wenzl | 2001-09-25 |
| 6197964 | Method for the production of 2,6-dichloro-5-fluoronicotinonitrile and the chemical compound 3-cyano-2-hydroxy-5-fluoropyride-6-one-monosodium salt its tautomers | Andreas Sattler, Bernd Griehsel | 2001-03-06 |
| 6184417 | Method for preparing acetophenones with a fluoralkyl-substituted aromatic nucleus | Wulf Kuhnle, Albrecht Marhold | 2001-02-06 |
| 6162917 | Method of preparing 4,5,6-trichloro- and 2,4,5,6-tetrachloropyrimidine | Georg Hardenbicker | 2000-12-19 |
| 6025499 | Process for the preparation of a nitropyrazole amide | Lutz Heuer, Nikolaus Muller | 2000-02-15 |
| 6015771 | Thermally-responsive record material | Mark Robert Fisher, John Charles DeBraal, Peter Wenzl | 2000-01-18 |
| 5969152 | Process for the preparation of nitropyrazole esters | Lutz Heuer, Nikolaus Muller | 1999-10-19 |
| 5900509 | Process for the preparation of p-haloalkoxyanilines | Franz-Josef Mais, Albrecht Marhold | 1999-05-04 |
| 5872283 | Process for decarboxylation of halogenated aromatic carboxylic acids | Stefan Antons, Helmut Fiege | 1999-02-16 |
| 5847217 | Process for the preparation of 2-amino-5-alkyl-phenols | Horst Behre | 1998-12-08 |
| 5723613 | Process for the free-radical chlorination or bromination of methyl aromatic compounds | — | 1998-03-03 |
| 5719285 | Process for the preparation of polychloropyrimidines | — | 1998-02-17 |
| 5693831 | (2,3-dihydro-5-benzofuranyl)-acetonitrile | Nikolaus Muller | 1997-12-02 |
| 5681957 | Process for the preparation of substituted 2-fluoro-pyrimidines | Erich Wolters, Alexander Klausener | 1997-10-28 |