Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5751598 | Water softening apparatus with microprocessor control | John E. Zabinski | 1998-05-12 |
| 4299698 | Circuit and apparatus for controlling a water softener | Stanley F. Rak, Donald P. DeVale | 1981-11-10 |