Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6750354 | Process for the alkylation of 3,4-dihydroxythiophene-2,5-dicarboxylic esters | Gunter Rauchschwalbe, Alexander Klausener, Josef Bremen, Ralf-Ingo Schenkel | 2004-06-15 |
| 5976324 | Removal of water from reaction mixtures | Andreas Groschl, Josef Bremen | 1999-11-02 |
| 5243013 | Polyester polyols and their use as anchoring agents for polymer systems and as polymeric plasticizers | Helmut Hurnik, Gerhard Trummelmeyer | 1993-09-07 |
| 4426333 | Process for the preparation of 1-benzoylamino-8-hydroxynaphthalene-4,6-disulphonic acid (benzoyl-K acid) | Erich Hammerschmidt, Horst Behre, Bruno Kruger | 1984-01-17 |
| 4421694 | Process for the preparation of nitroanilines | Bruno Kruger, Gunter Hentze | 1983-12-20 |