Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5273556 | Process for disposing of sewage sludge | Matthew A. McMahon, Ronald J. McKeon, Robert F. Heyl, Motasimur R. Khan, Enrique F. Depaz | 1993-12-28 |
| 5266085 | Process for disposing of sewage sludge | Matthew A. McMahon, Motasimur R. Khan, Robert F. Heyl, Ronald J. McKeon | 1993-11-30 |
| 5230211 | Partial oxidation of sewage sludge | Matthew A. McMahon, Michael C. Martin | 1993-07-27 |