Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7025899 | Concentrated solutions of oxime metal extractants and method of formulating extractant compositions therefrom | George A. Wolfe, Ralph L. Jensen, Gary A. Kordosky, Michael J. Virnig, Mary Collins +3 more | 2006-04-11 |
| 6632410 | Solvent extraction process | Sang I. Kang, Phillip L. Mattison, Michael J. Virnig, George A. Wolfe | 2003-10-14 |
| 6177055 | Process for extracting and recovering copper | Michael J. Virnig, Reuben H. Grinstein, George A. Wolfe, Stephen M. Olafson | 2001-01-23 |
| 5908605 | Copper recovery process | Michael J. Virnig | 1999-06-01 |
| 5514823 | Bis-(alkylsalicylidene)ethylene or phenylene diamines and transition metal complexes thereof | Gary A. Kordosky | 1996-05-07 |
| 4563256 | Solvent extraction process for recovery of zinc | Joseph M. Sierakoski, Roy G. Lewis | 1986-01-07 |
| 4544532 | Solvent extraction | Gary A. Kordosky, J. Michael Sierakoski, Kenneth Mackay | 1985-10-01 |
| 4507268 | Solvent extraction | Gary A. Kordosky, Kenneth Mackay, Joseph M. Sierakoski | 1985-03-26 |