Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4516281 | Sewage treatment device | David B. MacPherson, Robert W. Foley, Martin W. Greinier, David N. Pulsifer | 1985-05-14 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4516281 | Sewage treatment device | David B. MacPherson, Robert W. Foley, Martin W. Greinier, David N. Pulsifer | 1985-05-14 |