Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4543169 | Gold recovery process | Vincent F. D'Agostino, Joseph Y. Lee, Stephen Zapisek | 1985-09-24 |
| 4500396 | Copper recovery process | Vincent F. D'Agostino, Joseph Y. Lee, Stephen Zapisek | 1985-02-19 |