Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693371 | Method for forming chromium-free conversion coating | Jiangbo Ouyang, Joseph E. Murphy | 1997-12-02 |
| 5668096 | Cleaning and passivating treatment for metals | Barry P. Gunagan | 1997-09-16 |
| 5614028 | Method of cleaning and passivating a metal surface with acidic system and ethoxylated tertiary dodecyl mercaptan | — | 1997-03-25 |