Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7166142 | Filter constructions containing breather and recirculation filter elements | Daniel L. Tuma | 2007-01-23 |
| 7095584 | Integrated chemical breather filter with high and low pressure surfaces | — | 2006-08-22 |
| 6726745 | Filter assembly with shaped adsorbent article; and devices and methods of use | Daniel L. Tuma, Andrew Dahlgren, Vijay Garikipati | 2004-04-27 |
| 6491741 | Filter assembly with shaped adsorbent article; and devices and methods of use | Daniel L. Tuma, Andrew Dahlgren, Vijay Garikipati | 2002-12-10 |
| 6214095 | Adsorbent pouch for removal of gaseous contaminants | Son T. Nguyen, Daniel L. Tuma, David J. Tuffley | 2001-04-10 |
| 6168651 | Filter assembly with shaped adsorbent article; and devices and methods of use | Daniel L. Tuma, Andrew Dahlgren, Vijay Garikipati | 2001-01-02 |
| 5997614 | Filter with diffusion channel and methods of making and using the filter | Daniel L. Tuma, Andrew Dahlgren | 1999-12-07 |