Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5250178 | Buoyant ceiling wiper for stacked tank clarifier | Thomas J. Casper, Peter G. Dobbeck, Susan M. Rasper, John R. Thomas | 1993-10-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5250178 | Buoyant ceiling wiper for stacked tank clarifier | Thomas J. Casper, Peter G. Dobbeck, Susan M. Rasper, John R. Thomas | 1993-10-05 |