Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4898672 | Oxygen controlling wastewater treatment method | Melrose T. Garrett | 1990-02-06 |
| 4846965 | Oxygen controlling wastewater treatment system | Melrose T. Garrett | 1989-07-11 |