Wahlquist; Fred H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wahlquist; Fred H..The latest application filed is for "pulse ring assembly for air cleaner systems and methods thereof".
- Wahlquist; Fred H. - Bloomington MN
- Wahlquist; Fred H. - Richfield MN
| Patent | Date |
|---|---|
| Pulse Ring Assembly For Air Cleaner Systems And Methods Thereof App 20200338488 - Olson; Thomas R. ; et al. | 2020-10-29 |
| Pulse jet air cleaner systems; evacuation valve arrangements; air cleaner components; and, methods Grant 9,737,837 - Wahlquist , et al. August 22, 2 | 2017-08-22 |
| Pulse Jet Air Cleaner Systems; Evacuation Valve Arrangements; Air Cleaner Components; and, Methods App 20160166967 - Wahlquist; Fred H. ; et al. | 2016-06-16 |
| Pulse jet air cleaner components; features; assemblies; and, methods Grant 8,951,321 - Gillingham , et al. February 10, 2 | 2015-02-10 |
| Fluted filter media Grant 8,460,442 - Wagner , et al. June 11, 2 | 2013-06-11 |
| Multistage air cleaner including pulse cleaning system Grant 8,444,748 - Gillingham , et al. May 21, 2 | 2013-05-21 |
| Pulse jet air cleaner system; components; and, methods Grant 8,404,021 - Gillingham , et al. March 26, 2 | 2013-03-26 |
| Fluted Filter Media App 20120312167 - Wagner; Wayne M. ; et al. | 2012-12-13 |
| Fluted filter media Grant 8,268,053 - Wagner , et al. September 18, 2 | 2012-09-18 |
| Pulse jet air cleaner system; components; and, methods App 20110011042 - Gillingham; Gary R. ; et al. | 2011-01-20 |
| Pulse Jet Air Cleaner Components; Features; Assemblies; and, Methods App 20100031616 - Gillingham; Gary Ray ; et al. | 2010-02-11 |
| Filter Element Arrangement Including Bypass Arrangement And Methods App 20090229458 - Feddersen; Terrance D. ; et al. | 2009-09-17 |
| Fluted filter media App 20080216654 - Wagner; Wayne M. ; et al. | 2008-09-11 |
| Method of making a fluted filter media for air filter Grant 7,329,326 - Wagner , et al. February 12, 2 | 2008-02-12 |
| Multistage Air Cleaner Including Pulse Cleaning System App 20070186774 - Gillingham; Gary R. ; et al. | 2007-08-16 |
| Multistage Air Cleaner Including Pulse Cleaning System App 20060277871 - Gillingham; Gary R. ; et al. | 2006-12-14 |
| Multistage air cleaner including pulse cleaning system Grant 7,090,711 - Gillingham , et al. August 15, 2 | 2006-08-15 |
| Multistage air cleaner including pulse cleaning system App 20050166559 - Gillingham, Gary R. ; et al. | 2005-08-04 |
| Multistage air cleaner including pulse cleaning system Grant 6,908,494 - Gillingham , et al. June 21, 2 | 2005-06-21 |
| Multistage air cleaner including pulse cleaning system Grant 6,872,237 - Gillingham , et al. March 29, 2 | 2005-03-29 |
| Multistage air cleaner including pulse cleaning system App 20040144253 - Gillingham, Gary R. ; et al. | 2004-07-29 |
| Multistage air cleaner including pulse cleaning system App 20040139707 - Gillingham, Gary R. ; et al. | 2004-07-22 |
| Multistage air cleaner including pulse cleaning system Grant 6,676,721 - Gillingham , et al. January 13, 2 | 2004-01-13 |
| Fluted filter media for air filter App 20030121845 - Wagner, Wayne M. ; et al. | 2003-07-03 |
| Conical filter Grant 5,902,364 - Tokar , et al. May 11, 1 | 1999-05-11 |
| Rolled liquid filter using fluted media Grant 5,895,574 - Friedmann , et al. April 20, 1 | 1999-04-20 |
| Slanted inline filter Grant 5,772,883 - Rothman , et al. June 30, 1 | 1998-06-30 |
| Air cleaner having scavenger arrangement Grant 5,683,479 - Gillingham , et al. November 4, 1 | 1997-11-04 |
| Air cleaner having scavenger arrangement for precleaner and filter thereof Grant 5,401,285 - Gillingham , et al. March 28, 1 | 1995-03-28 |
| Clamp for coupling and sealing pipe joints Grant 5,116,083 - Gillingham , et al. May 26, 1 | 1992-05-26 |
| Self-cleaning air filter Grant 4,504,293 - Gillingham , et al. March 12, 1 | 1985-03-12 |
| Self-cleaning air cleaner Grant 4,452,616 - Gillingham , et al. June 5, 1 | 1984-06-05 |
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