Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654458 | Recovery of palladium | Michael D. Fabiano, Gary A. Kordosky, Michael J. Virnig, Bert Gruber, Steven M. Hoagland | 1997-08-05 |
| 5607060 | Method and apparatus for removing metal contamination from soil | William E. Fristad, Jeffrey L. Narum, Michael J. Virnig, John Fast | 1997-03-04 |