Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5273070 | Water treatment apparatus | Danilo Chili, Ramon Bragos, William W. Norton | 1993-12-28 |
| 5254257 | Reclaiming of spent brine | Frank A. Brigano, William J. Soucie | 1993-10-19 |
| 5239285 | Low salt level sensor | — | 1993-08-24 |
| 5073255 | Water treatment apparatus | Danilo Chili, Ramon Bragos, William W. Norton | 1991-12-17 |
| 5061372 | Water treatment system with preservice rinse | — | 1991-10-29 |
| 4970003 | Water softening process with preservice rinse | — | 1990-11-13 |
| 4606943 | Method for preparation of semipermeable composite membrane | Kenneth Ward | 1986-08-19 |
| 4536845 | Self-programmable controller for water conditioner recharging | Donald P. DeVale | 1985-08-20 |
| 4299698 | Circuit and apparatus for controlling a water softener | Donald P. DeVale, Roger Rehfeldt | 1981-11-10 |
| 4257887 | Circuit and apparatus for controlling a water softener | Donald P. DeVale | 1981-03-24 |