Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882018 | Electrolytic demetallization of dilute solutions using ion exchange resins | — | 1989-11-21 |
| 4808281 | Phosphate coating complex metal surfaces | Su-Chee Simon Wang, Dexter D. Snyder | 1989-02-28 |