Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10280926 | Chopper pump with mixing nozzles for a sewage wet-well | — | 2019-05-07 |
| 9486819 | System having foam busting nozzle and sub-surface mixing nozzle | Kent H. Keeran | 2016-11-08 |
| 9360014 | Chopper pump with mixing nozzles for a sewage wet-well | — | 2016-06-07 |
| 8992072 | Nozzle system for tank floor | — | 2015-03-31 |
| 8985490 | Chopper pump with cutting inserts | Kent H. Keeran, Rich Ballou, Alex Cahoon | 2015-03-24 |
| 8905341 | Screw-type centrifugal pump with cutting inserts | Kent H. Keeran, Rich Ballou, Alex Cahoon | 2014-12-09 |
| 8348188 | Internal cutter on submersed mixer | Kent H. Keeran, Yee Chak | 2013-01-08 |
| 8118244 | Internal cutter on submersed mixer | Kent H. Keeran, Yee Chak | 2012-02-21 |
| 8105017 | Centrifugal chopper pump with impeller assembly | Kent H. Keeran | 2012-01-31 |
| 7841550 | Cutter nut and cutter bar assembly | Kent H. Keeran, Yee Chak | 2010-11-30 |
| 7628183 | Surface foam diffuser system | Kent H. Keeran | 2009-12-08 |
| 7125221 | Centrifugal pump improvements | Kent H. Keeran, Arne Swenson | 2006-10-24 |
| 7025492 | Storage/treatment tank mixing system | Richard Behnke | 2006-04-11 |
| 5460483 | Multistage centrifugal chopper pump | — | 1995-10-24 |
| 5460482 | Centrifugal chopper pump with internal cutter | — | 1995-10-24 |
| 5456580 | Multistage centrifugal chopper pump | — | 1995-10-10 |
| 5256032 | Centrifugal chopper pump | — | 1993-10-26 |
| 5076757 | High head centrifugal slicing slurry pump | — | 1991-12-31 |
| 4842479 | High head centrifugal slicing slurry pump | — | 1989-06-27 |
| 4840384 | Face-type shaft seal with shroud | — | 1989-06-20 |