Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5763637 | Process for preparing dimethyl vinylphosphonate from dimethyl 2-acetoxyethanephosphonate | Udo Dettmeier, Guenter Roscher | 1998-06-09 |
| 4918225 | Process for the preparation of pure crotonic acids | Siegbert Rittner, Herbert Gortz | 1990-04-17 |
| 4720577 | Process for the extraction of carboxylic acids from dilute aqueous solutions | Bernhard Wojtech, Walter Steppich, Dieter Freudenberger | 1988-01-19 |