Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8419817 | Self-supporting pleated filter media | Douglas C. Sundet, Dean R. Duffy, Donald E. Young | 2013-04-16 |
| 7896940 | Self-supporting pleated filter media | Douglas C. Sundet, Dean R. Duffy, Donald E. Young | 2011-03-01 |
| 7235115 | Method of forming self-supporting pleated filter media | Dean R. Duffy, Donald E. Young, Douglas C. Sundet | 2007-06-26 |