Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6284132 | Brine fill apparatus for water softener | Jeffrey Zimmerman, Ralph H. Larson | 2001-09-04 |
| D434827 | Display panel for a water softener | Jeff Zimmerman, Mike Drager, Mike Hanson, Mark Rolfes | 2000-12-05 |