Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4415453 | Anaerobic treatment | Enrique R. Witt, William J. Humphrey | 1983-11-15 |
| 4366059 | Anaerobic treatment | Enrique R. Witt, William J. Humphrey | 1982-12-28 |
| 4315823 | Anaerobic treatment | Enrique R. Witt, William J. Humphrey | 1982-02-16 |