Issued Patents 1982
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337144 | Aluminum passivation process | — | 1982-06-29 |
| 4321128 | Phosphorus passivation process | — | 1982-03-23 |
| 4319983 | Passivation process | — | 1982-03-16 |
| 4318799 | Combination of aluminum and phosphorus passivation process | — | 1982-03-09 |
| 4317713 | In situ aluminum passivation process | Emmett H. Burk, Jr., John A. Karch | 1982-03-02 |