Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5092563 | Apparatus for recovery of heavy metals from highly concentrated wastewater solutions | Joseph Fehsenfeld | 1992-03-03 |
| 5019273 | Method for recovery of heavy metals from highly concentrated wastewater solutions | Joseph Fehsenfeld | 1991-05-28 |