Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698091 | Home water purification system with filter end of life monitor | Roy W. Kuennen, Robin M. Dykhouse, Dennis J. Kool, Bradley J. Pippel, Dennis E. Kidd +1 more | 1997-12-16 |
| 5611918 | Electronic driver for water treatment system UV bulb | — | 1997-03-18 |