Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10486094 | Collapsable V-bank filter | Rajesh K. Katare, Chris T. Gasman | 2019-11-26 |
| 9610528 | Filter frame assembly with seal | Francis E. Porbeni, Dean R. Duffy, Gregory M. Jellum, Richard A. Kirchner, Donald E. Young +2 more | 2017-04-04 |
| 8491689 | Joined filter media pleat packs | Dean R. Duffy, Wenli Wang, Ronald L. Wylie, Jr. | 2013-07-23 |