Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6825357 | Benzodioxinothiophenes, their preparation and use | Alexander Klausener, Stephan Kirchmeyer, Knud Reuter | 2004-11-30 |
| 6787666 | Process for the preparation of isolated 3,4-diaminobenzenesulphonic acid | Herbert Emde, Wolfram Kissener | 2004-09-07 |
| 6750354 | Process for the alkylation of 3,4-dihydroxythiophene-2,5-dicarboxylic esters | Alexander Klausener, Josef Bremen, Ralf-Ingo Schenkel, Adolf Winkler | 2004-06-15 |