Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5464532 | Water softener with resin beads of different mesh sizes | Bruce Gillett | 1995-11-07 |
| D309342 | Electronic indicator faucet | John R. Nelson, Christopher M. Wilker | 1990-07-17 |
| 4722797 | Method for regeneration of a water softener | Gary W. Gauer, Thomas Weber, Dennis G. Winberg | 1988-02-02 |
| 4599047 | Chemical feed pump flow indicator | Raymond C. Walton | 1986-07-08 |
| 4347224 | Chemical dispenser | Adolf F. Beckert, Dennis G. Winberg | 1982-08-31 |
| 4332685 | Method and apparatus for treating water | Dennis G. Winberg | 1982-06-01 |