Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880552 | Water-soluble additives having extreme pressure effect for aqueous functional fluids, functional fluids and concentrated aqueous compositions containing the additives | Patrice Guesnet, Tetsuchi Kawamura, Sabine Poncet, Charles Castera | 1989-11-14 |