Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874552 | Process for simultaneous bleaching and neutralization of alpha-sulfofatty acid esters | Hans-Joachim Richtler, Franz-Josef Carduck, Klaus Koester, Hubert Harth | 1989-10-17 |