Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882091 | Use of polyhydroxyalkylamine-N-N-dicarboxylic acids and their salts as builders in detergents and cleaning agents | Heike Kelkenberg | 1989-11-21 |
| 4830771 | Process for the preparation of trialkanolamine di(fatty acid) esters, and the use thereof for softening fabrics | Jan Schut | 1989-05-16 |