Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358700 | Method of extracting zinc from brines | Patrick M. Brown, Enzo L. Coltrinari, Eugenio Iasillo | 1994-10-25 |
| 5246684 | Method of extracting zinc from brines | Patrick M. Brown, James E. Reynolds | 1993-09-21 |
| 5244491 | Method of extracting zinc lead and silver from brines | Patrick M. Brown, Kerry A. McDonald | 1993-09-14 |
| 4389247 | Metal recovery process | Sungkuk Won | 1983-06-21 |
| 4378245 | Distillation process for separating silver and copper chlorides | — | 1983-03-29 |