Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337129 | Regeneration of waste metallurgical process liquor | Jerry D. Troyer, Andrew A. Cochran | 1982-06-29 |
| 4256557 | Copper electrowinning and Cr.sup.+6 reduction in spent etchants using porous fixed bed coke electrodes | Hector O. McDonald | 1981-03-17 |