Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7909954 | Method and apparatus for winding a filter media pack | Brian T. Ehrenberg, Kyle Swanson, Steven J. Merritt | 2011-03-22 |
| 7255300 | Method and apparatus for winding a filter media pack | — | 2007-08-14 |