Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7607884 | Centrifugal pump with mechanical seal arrangement | — | 2009-10-27 |
| 6224331 | Centrifugal pump with solids cutting action | John Hayward | 2001-05-01 |
| 6190121 | Centrifugal pump with solids cutting action | John Hayward | 2001-02-20 |
| 4408721 | Fitting to combine air and pressurized water | Alfred Raab | 1983-10-11 |