Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5395430 | Electrostatic precipitator assembly | Virgil A. Marple, Robert A. Herrick | 1995-03-07 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5395430 | Electrostatic precipitator assembly | Virgil A. Marple, Robert A. Herrick | 1995-03-07 |