Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5250178 | Buoyant ceiling wiper for stacked tank clarifier | Thomas J. Casper, Franklin J. Koehler, Susan M. Rasper, John R. Thomas | 1993-10-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5250178 | Buoyant ceiling wiper for stacked tank clarifier | Thomas J. Casper, Franklin J. Koehler, Susan M. Rasper, John R. Thomas | 1993-10-05 |