Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698091 | Home water purification system with filter end of life monitor | Roy W. Kuennen, Robin M. Dykhouse, Ronald C. Markham, Bradley J. Pippel, Dennis E. Kidd +1 more | 1997-12-16 |
| 5693226 | Apparatus for demonstrating a residential point of use water treatment system | — | 1997-12-02 |
| D380524 | Water purifier | — | 1997-07-01 |