Blomberg; David M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Blomberg; David M..The latest application filed is for "respirator fit check sealing devices and methods".
Company Profile
4.44.22
- Blomberg; David M. - Lino Lakes MN
- Blomberg; David M. - Woodbury MN
Patent Activity
| Patent | Date |
|---|---|
| Respirator Fit Check Sealing Devices And Methods App 20220088422 - Mittelstadt; William A. ; et al. | 2022-03-24 |
| Respirator fit check sealing devices and methods Grant 11,219,787 - Mittelstadt , et al. January 11, 2 | 2022-01-11 |
| Respirator Negative Pressure Fit Check Devices And Methods App 20210290992 - Mittelstadt; William A. ; et al. | 2021-09-23 |
| Respirator negative pressure fit check devices and methods Grant 11,052,268 - Mittelstadt , et al. July 6, 2 | 2021-07-06 |
| Respirator With Floating Elastomeric Sleeve App 20200376306 - Blomberg; David M. | 2020-12-03 |
| Respirator Fit Check Sealing Devices And Methods App 20200316414 - Mittelstadt; William A. ; et al. | 2020-10-08 |
| Respirator with floating elastomeric sleeve Grant 10,786,692 - Blomberg September 29, 2 | 2020-09-29 |
| Personal protective device strap connecting buckle assembly Grant 10,765,176 - Castiglione , et al. Sep | 2020-09-08 |
| Sleeve-fit respirator cartridge Grant 10,391,338 - Blomberg , et al. A | 2019-08-27 |
| Respirator negative pressure fit check devices and methods Grant 9,950,202 - Mittelstadt , et al. April 24, 2 | 2018-04-24 |
| Respirator With Floating Elastomeric Sleeve App 20180028845 - Blomberg; David M. | 2018-02-01 |
| Respirator with floating elastomeric sleeve Grant 9,814,913 - Blomberg November 14, 2 | 2017-11-14 |
| Air filtration device having subsections lacking fluid communication Grant 9,744,329 - Billingsley , et al. August 29, 2 | 2017-08-29 |
| Air filtration device having tuned air distribution system Grant 9,744,328 - Billingsley , et al. August 29, 2 | 2017-08-29 |
| Respirator mask Grant D795,416 - Blomberg , et al. August 22, 2 | 2017-08-22 |
| Respirator cartridge having an engagement latch Grant D795,415 - Blomberg , et al. August 22, 2 | 2017-08-22 |
| Filter element Grant D786,443 - Blomberg , et al. May 9, 2 | 2017-05-09 |
| Personal Protective Device Strap Connecting Buckle Assembly App 20170065036 - Castiglione; David M. ; et al. | 2017-03-09 |
| Filter element having a connector Grant D779,674 - Blomberg , et al. February 21, 2 | 2017-02-21 |
| Filter cartridge Grant D778,430 - Blomberg , et al. February 7, 2 | 2017-02-07 |
| Respiratory mask having a clean air inlet chamber Grant 9,517,367 - Dwyer , et al. December 13, 2 | 2016-12-13 |
| Sleeve-fit respirator cartridge Grant 9,510,626 - Blomberg , et al. December 6, 2 | 2016-12-06 |
| Respirator mask having an exhalation port Grant D767,116 - Blomberg , et al. September 20, 2 | 2016-09-20 |
| Respirator mask exhalation port Grant D759,807 - Blomberg , et al. June 21, 2 | 2016-06-21 |
| Respirator cartridge body Grant D757,928 - Blomberg , et al. May 31, 2 | 2016-05-31 |
| Respirator mask Grant D754,844 - Blomberg , et al. April 26, 2 | 2016-04-26 |
| Personal protective equipment strap retaining devices Grant 9,259,058 - Brace , et al. February 16, 2 | 2016-02-16 |
| Personal protective equipment strap retaining devices Grant 9,247,788 - Brace , et al. February 2, 2 | 2016-02-02 |
| Respirator mask body Grant D747,795 - Blomberg , et al. January 19, 2 | 2016-01-19 |
| Respirator cartridge connector Grant D747,470 - Blomberg January 12, 2 | 2016-01-12 |
| Respirator mask having a communication grille Grant D746,437 - Blomberg , et al. December 29, 2 | 2015-12-29 |
| Respirator mask having a circular button Grant D744,088 - Blomberg , et al. November 24, 2 | 2015-11-24 |
| Respirator mask having a circular button Grant D743,536 - Blomberg , et al. November 17, 2 | 2015-11-17 |
| Respirator mask Grant D742,504 - Blomberg , et al. November 3, 2 | 2015-11-03 |
| Respirator mask having a communication grille Grant D741,475 - Blomberg , et al. October 20, 2 | 2015-10-20 |
| Respirator With Floating Elastomeric Sleeve App 20150136142 - Blomberg; David M. | 2015-05-21 |
| Air Filtration Device Having Tuned Air Distribution System App 20150047632 - Billingsley; Britton G. ; et al. | 2015-02-19 |
| Air Filtration Device Having Subsections Lacking Fluid Communication App 20150047633 - Billingsley; Britton G. ; et al. | 2015-02-19 |
| Air filtration device having subsections lacking fluid communication Grant 8,899,227 - Billingsley , et al. December 2, 2 | 2014-12-02 |
| Air filtration device having tuned air distribution system Grant 8,887,719 - Billingsley , et al. November 18, 2 | 2014-11-18 |
| Respirator Negative Pressure Fit Check Devices And Methods App 20140251327 - Mittelstadt; William A. ; et al. | 2014-09-11 |
| Sleeve-fit Respirator Cartridge App 20140216475 - Blomberg; David M. ; et al. | 2014-08-07 |
| Personal Protective Equipment Strap Retaining Devices App 20140216472 - Brace; Thomas J. ; et al. | 2014-08-07 |
| Personal Protective Equipment Strap Retaining Devices App 20140216476 - Brace; Thomas J. ; et al. | 2014-08-07 |
| Respirator Negative Pressure Fit Check Devices And Methods App 20140216474 - Mittelstadt; William A. ; et al. | 2014-08-07 |
| Respiratory Mask Having A Clean Air Inlet Chamber App 20140216473 - Dwyer; Gary E. ; et al. | 2014-08-07 |
| Battery pack for powered air purifying respirator (PAPR) Grant D710,304 - Blomberg , et al. August 5, 2 | 2014-08-05 |
| Large battery pack for powered air purifying respirator (PAPR) Grant D696,629 - Abel , et al. December 31, 2 | 2013-12-31 |
| Filtering Face-piece Respirator Having Support Structure Injection Molded To Filtering Structure App 20130340768 - Gebrewold; Yonas ; et al. | 2013-12-26 |
| Powered air purifying respirator (PAPR) having control panel Grant D690,414 - Abel , et al. September 24, 2 | 2013-09-24 |
| Air Filtration Device Having Subsections Lacking Fluid Communication App 20130152920 - Billingsley; Britton G. ; et al. | 2013-06-20 |
| Air Filtration Device Having Tuned Air Distribution System App 20130152919 - Billingsley; Britton G. ; et al. | 2013-06-20 |
| Small battery pack for powered air purifying respirator Grant D684,536 - Abel , et al. June 18, 2 | 2013-06-18 |
| Unidirectional valve Grant D676,527 - Xue , et al. February 19, 2 | 2013-02-19 |
| Filtering Face-piece Respirator Having Support Structure Injection Molded To Filtering Structure App 20120125342 - Gebrewold; Yonas ; et al. | 2012-05-24 |
| Filtering Face-piece Respirator Having An Overmolded Face Seal App 20120125341 - Gebrewold; Yonas ; et al. | 2012-05-24 |
| Apparatus and method for breathing apparatus component coupling Grant 6,575,165 - Cook , et al. June 10, 2 | 2003-06-10 |
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