Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5173179 | Removal of contaminants and recovery of metals from waste solutions | Irving W. DeVoe, David A. Fine | 1992-12-22 |
| 5066371 | Removal of contaminants and recovery of metals from waste solutions | Irving W. DeVoe, David A. Fine | 1991-11-19 |