Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8029592 | Diesel particulate filter assembly | Philip P. Treier, Bradley R. Postage, Donald W. Baldwin, Timothy L. Memmer | 2011-10-04 |
| 7824460 | Diesel particulate filter assembly | Phil P. Treier | 2010-11-02 |
| 7785384 | Pleated diesel particulate filter assembly | Phil P. Treier, Bradley R. Postage, Donald W. Baldwin | 2010-08-31 |