Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5207457 | Laminated folding map | — | 1993-05-04 |
| 4610932 | Electrical contacts | Hung C. Ling, Sau-Lan L. Ng | 1986-09-09 |
| 4479922 | Solvent treatment in the separation of palladium and/or gold from other platinum group and base metals | Anna Jackson, Martin K. Zierold | 1984-10-30 |
| 4443305 | Emulsion electrowinning | — | 1984-04-17 |