Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4531978 | Method of forming chromate conversion coatings on aluminum surfaces and the coating formed thereby | Donald R. Gerard | 1985-07-30 |
| 4529451 | Zinc phosphate coated metal and process of producing same | Donald R. Gerard | 1985-07-16 |
| 4182637 | Post phosphating inhibiting rinse | Raymond M. Ajluni, Gilbert S. Gomes | 1980-01-08 |