Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11865375 | Respirator fit check sealing devices and methods | William A. Mittelstadt, David M. Blomberg, Adam J. Cernohous, Michael J. Cowell | 2024-01-09 |
| 11219787 | Respirator fit check sealing devices and methods | William A. Mittelstadt, David M. Blomberg, Adam J. Cernohous, Michael J. Cowell | 2022-01-11 |
| 9440176 | Filter systems including patterned optical analyte sensors and optical readers | Gary E. Dwyer, Kiran S. Kanukurthy, Neal A. Rakow | 2016-09-13 |
| 8955515 | Patterned chemical sensor having inert occluding layer | Neal A. Rakow, Brian L. Linzie, John C. Hulteen, Duane D. Fansler, Richard J. Poirier +1 more | 2015-02-17 |
| 8858692 | Filter systems including patterned optical analyte sensors and optical readers | Gary E. Dwyer, Kiran S. Kanukurthy, Neal A. Rakow | 2014-10-14 |
| 8839785 | Respirator harness having collapsible head cradle | David M. Castiglione, William A. Mittelstadt | 2014-09-23 |
| 8821621 | Filter systems including optical analyte sensors and optical readers | Gary E. Dwyer, Kiran S. Kanukurthy, Neal A. Rakow | 2014-09-02 |
| 8365723 | Filter cartridge having cone of visibility for end-of-service-life-indicator (ESLI) | Richard J. Poirier, Neal A. Rakow | 2013-02-05 |
| 8336543 | Filter cartridge having cover for masking service life indicator | Neal A. Rakow | 2012-12-25 |
| 8225782 | Filter cartridge having location-registered view window for end-of-service-life-indicator (ESLI) | Neal A. Rakow, Richard J. Poirier | 2012-07-24 |
| D613850 | Respirator mask body | John M. Pilgrim, Thomas G. Skulley | 2010-04-13 |
| D613851 | Filter housing | John M. Pilgrim | 2010-04-13 |
| D568986 | Strap carriers on a respirator | John M. Pilgrim, James R. Betz, Sean M. Burke, Alan J. Solyntjes, Paul A. Martinson +1 more | 2008-05-13 |
| D555777 | Filter cartridge inlet grill pattern | Jason L. Aveldson, Jeffrey A. Eyberg | 2007-11-20 |
| RE39493 | Respirator having snap-fit filter cartridge | Gregory Yuschak, Peter O. Rekow | 2007-02-27 |
| 6277178 | Respirator and filter cartridge | Peter O. Rekow | 2001-08-21 |
| 6216693 | Respirator having a compressible press fir filter element | Peter O. Rekow, David L. Braun, Vaughn B. Grannis | 2001-04-17 |
| 5579761 | Respirator having snap-fit filter cartridge | Gregory Yuschak, Peter O. Rekow | 1996-12-03 |