Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880894 | Quaternary ammonium salts used as phase transfer catalyst | Carlos Sunkel, Miguel Fay de Casa Juana, Fernando Dorrego, Basilio Pando, Juan J. Vaquero +2 more | 1989-11-14 |