Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863704 | Multi-stage process for reducing the concentration of pollutants in an effluent using an ammonium salt | William R. Epperly, Jeremy D. Peter-Hoblyn, James C. Sullivan, Barry N. Sprague | 1989-09-05 |