Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5391783 | Process for the production of light-colored pastes of .alpha.-sulfofatty acid alkyl ester alkali metal salts | Dietmar Colignon, Erich Dorra, Guenter Panthel, Francois Pierron, Wolfgang Schmidt +1 more | 1995-02-21 |
| 4652406 | Process for the production of fatty acid alkyl esters | Lothar Friesenhagen | 1987-03-24 |
| 4608202 | Process for the production of fatty acid esters of short-chain aliphatic alcohols from fats and/or oils containing free fatty acids | Lothar Friesenhagen | 1986-08-26 |
| 4520211 | Process for the continuous preparation of polyhydric alcohols | Hartwig Schutt | 1985-05-28 |