Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9180398 | Filter element, air cleaner, and methods | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2015-11-10 |
| 8512499 | Fluted filter medium and process for its manufacture | Gregory Reichter, Daniel T. Risch | 2013-08-20 |
| 8449638 | Filter element, air cleaner, and methods | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2013-05-28 |
| 8007572 | Filter element, air cleaner, and methods | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2011-08-30 |
| 7997425 | Fluted filter medium and process for its manufacture | Gregory Reichter, Daniel T. Risch | 2011-08-16 |
| 7615091 | Filter element, air cleaner, and methods | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2009-11-10 |
| 7488365 | Filter element using corrugated media sheet | Michael A. Madden | 2009-02-10 |
| 7211124 | Filter element, air cleaner, and methods | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2007-05-01 |
| 7001450 | Filter element, air cleaner, and methods | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2006-02-21 |
| 6746518 | Filter element, air cleaner, and methods | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2004-06-08 |
| D473637 | Fluted filter element | — | 2003-04-22 |
| 6547857 | Filter element, air cleaner, and methods | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2003-04-15 |
| 6416605 | Method for manufacturing fluted media | — | 2002-07-09 |
| 6348084 | Filter element, air cleaner, and methods | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2002-02-19 |
| D444219 | Centerpiece for filter element | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2001-06-26 |
| D437402 | Filter element with centerpiece | Steven Scott Gieseke, William Juliar, Edward A. Steinbrueck, Wayne R. W. Bishop, Wayne C. Musselman | 2001-02-06 |
| 6104301 | Hazard detection, warning, and response system | — | 2000-08-15 |
| 5808541 | Hazard detection, warning, and response system | — | 1998-09-15 |
| 4793051 | Method for construction of crimp seal pleated filter assembly | Daniel T. Risch, Steve W. Sabelko | 1988-12-27 |
| 4736518 | Method and apparatus for construction of crimp seal pleated filter assembly | Daniel T. Risch, Steve W. Sabelko | 1988-04-12 |
| 4482366 | Pulse-type cleaning means for filter panels | Harry R. Camplin | 1984-11-13 |