Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6451183 | Method and apparatus for electrowinning powder metal from solution | David Bruce Tarrant | 2002-09-17 |
| 5529672 | Mineral recovery apparatus | Neal Barr, Robert N. De Denus | 1996-06-25 |