Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6432166 | Dust control | Stephen M. Olafson, Michael J. Virnig | 2002-08-13 |
| 6395062 | Process for recovery of metals from metal-containing ores | Stephen M. Olafson, Michael J. Virnig | 2002-05-28 |