Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874552 | Process for simultaneous bleaching and neutralization of alpha-sulfofatty acid esters | Hans-Joachim Richtler, Udo Kreutzer, Franz-Josef Carduck, Klaus Koester | 1989-10-17 |
| 4851525 | Conversion of organophosphonic acids into their salts using intense shear | Willi Wuest, Dirk Springer, Franz Foerg | 1989-07-25 |