Issued Patents 1989
Showing 1–2 of 2 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, George F. Shulof, Jr., James C. Sullivan, Barry N. Sprague | 1989-09-05 |
| 4830839 | Ammonia scrubbing | William R. Epperly, James C. Sullivan | 1989-05-16 |