Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6435424 | Pressure washer with duty cycle temperature controller and method | Calvin W. Krefft, Erik Worm | 2002-08-20 |
| 5427151 | Pressure regulating chemical injector valve | — | 1995-06-27 |