Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5344504 | Treatment for galvanized metal | Jeffrey I. Melzer, William L. Harpel | 1994-09-06 |
| 5328525 | Method and composition for treatment of metals | Edward M. Musingo, Bruce V. Haberle | 1994-07-12 |
| 5292378 | Visible dried-in-place non-chrome treatment for aluminum | Jiangbo Ouyang, Bruce V. Haberle, William L. Harpel | 1994-03-08 |