Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8075648 | Nozzle arrangements and method for cleaning filter elements | — | 2011-12-13 |
| 8075674 | Filter apparatus with pulse cleaning and methods for pulse cleaning filters | — | 2011-12-13 |
| 8057582 | System configuration of pulsed cleaned panel-style filter elements and methods | — | 2011-11-15 |
| 8057563 | Filter apparatus configuration of pulsed cleaned panel-style filters and methods | — | 2011-11-15 |
| 7967898 | Z-filter media with reverse-flow cleaning systems and methods | Timothy D. Sporre, Jim C. Rothman, Michael Handley | 2011-06-28 |
| 7641708 | Air filter assembly having non-cylindrical filter elements, for filtering air with particulate matter | Kristofer G. Kosmider, Steven A. Johnson | 2010-01-05 |
| 7338544 | Z-filter media with reverse-flow cleaning systems and methods | Timothy D. Sporre, Jim C. Rothman, Michael Handley | 2008-03-04 |
| 7282075 | Z-filter media with reverse-flow cleaning systems and methods | Timothy D. Sporre, Jim C. Rothman, Michael Handley | 2007-10-16 |
| 7264656 | Air filter assembly having non-cylindrical filter elements, for filtering air with particulate matter | Kristofer G. Kosmider, Steven A. Johnson | 2007-09-04 |
| D499177 | Filter element having oval shape | Kristofer G. Kosmider, Steven A. Johnson | 2004-11-30 |
| 6488746 | Air filter assembly having non-cylindrical filter elements, for filtering air with particulate matter | Kristofer G. Kosmider, Steven A. Johnson | 2002-12-03 |
| 6387162 | Air filter assembly having non-cylindrical filter elements, for filtering air with particulate matter | Kristofer G. Kosmider, Steven A. Johnson | 2002-05-14 |
| 6368388 | Filter construction apparatus and method | Kristofer G. Kosmider, James A. Severson, Robert Bick, Steven A. Johnson | 2002-04-09 |
| 6364921 | Air filter assembly for filtering air having particulate matter | Steven A. Johnson, Kristofer G. Kosmider | 2002-04-02 |
| 6090173 | Air filter assembly for filtering air with particulate matter | Steven A. Johnson, James L. Berkhoel | 2000-07-18 |
| 5562746 | Air filter assembly for filtering air with particulate matter | — | 1996-10-08 |