Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10605272 | Locking seat pivot ball siphon elbow | Eugene F. Sibley | 2020-03-31 |
| 10126052 | Bi-directional pick-up shoe | Gregory L. Wedel, Gerald L. Timm | 2018-11-13 |
| 9562324 | Turbulence bar assembly | Gregory L. Wedel, Alan T. Ives | 2017-02-07 |
| 6203072 | Corrugating joint and syphon system | Raymond Roger Berghuis, Edmund Kozlowski, Jennifer J. Baker, James A. Medsker | 2001-03-20 |