Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5258052 | Powder metallurgy silver-tin oxide electrical contact material | — | 1993-11-02 |
| 4450204 | Silver material suitable for backing of silver-cadmium oxide contacts and contacts employing same | Han J. Kim | 1984-05-22 |