Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4752332 | Treating manganese-containing ores with a metal sulfide | Larry Tsai, Barbara A. Krebs-Yuill, David A. Milligan, Nestor J. Troncoso, John S. McBride, Jr. +1 more | 1988-06-21 |
| 4740243 | Metal value recovery from metal sulfide containing ores | Barbara A. Krebs-Yuill, Larry Tsai, David A. Milligan, Nestor J. Troncoso | 1988-04-26 |