Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4720577 | Process for the extraction of carboxylic acids from dilute aqueous solutions | Bernhard Wojtech, Dieter Freudenberger, Knut Riedel | 1988-01-19 |
| 4237073 | Process for the manufacture of acetaldehyde | Rudolf Sartorius | 1980-12-02 |