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Home › 3M › David M. Blomberg

DB

David M. Blomberg — 46 Patents

3M: 46 patents #176 of 11,543Top 2%

Lino Lakes, MN: #15 of 309 inventorsTop 5%

Minnesota: #1,025 of 52,454 inventorsTop 2%

Overall (All Time): #62,001 of 4,157,543Top 2%

46 Patents All Time

David M. Blomberg has been granted 46 US patents while listed as an inventor at 3M. The first was granted in 2003 and the most recent in December 2025. David M. Blomberg ranks #62,001 of 4,157,543 US inventors in our database (top 1.5%). Patent records list David M. Blomberg in Lino Lakes, MN, US.

Patents per Year

Issued Patents All Time

Showing 1–25 of 46 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
D1105004	Cable guide	Patrick R. McKellips	2025-12-09
D1095456	Cable guide	Patrick R. McKellips	2025-09-30
D1068124	Bracket for headgear	Patrick R. McKellips	2025-03-25
D1055002	Cable guide	Patrick R. McKellips	2024-12-24
D1053463	Accessory bracket for headgear	Patrick R. McKellips	2024-12-03
12128259	Respirator negative pressure fit check devices and methods	William A. Mittelstadt, Carl W. Raines, III, David R. Stein, Nathan A. Abel, Michael J. Cowell +6 more	2024-10-29	$61,514,000
D1035593	Cable guide	Patrick R. McKellips	2024-07-16
11865375	Respirator fit check sealing devices and methods	William A. Mittelstadt, Thomas W. Holmquist-Brown, Adam J. Cernohous, Michael J. Cowell	2024-01-09	$28,749,000
11571591	Respirator with floating elastomeric sleeve	—	2023-02-07	$48,331,000
11219787	Respirator fit check sealing devices and methods	William A. Mittelstadt, Thomas W. Holmquist-Brown, Adam J. Cernohous, Michael J. Cowell	2022-01-11	$101,075,000
11052268	Respirator negative pressure fit check devices and methods	William A. Mittelstadt, Carl W. Raines, III, David R. Stein, Nathan A. Abel, Michael J. Cowell +6 more	2021-07-06	$56,153,000
10786692	Respirator with floating elastomeric sleeve	—	2020-09-29	$134,334,000
10765176	Personal protective device strap connecting buckle assembly	David M. Castiglione, David R. Stein, Michael J. Cowell	2020-09-08	$52,923,000
10391338	Sleeve-fit respirator cartridge	Michael J. Cowell, William A. Mittelstadt, Carl W. Raines, III, Nathan A. Abel	2019-08-27	$48,048,000
9950202	Respirator negative pressure fit check devices and methods	William A. Mittelstadt, Carl W. Raines, III, David R. Stein, Nathan A. Abel, Michael J. Cowell +3 more	2018-04-24	$37,716,000
9814913	Respirator with floating elastomeric sleeve	—	2017-11-14	$34,017,000
9744328	Air filtration device having tuned air distribution system	Britton G. Billingsley, Joy L. Manske	2017-08-29	$26,023,000
9744329	Air filtration device having subsections lacking fluid communication	Britton G. Billingsley, Joy L. Manske	2017-08-29	$26,023,000
D795415	Respirator cartridge having an engagement latch	Gary E. Dwyer	2017-08-22
D795416	Respirator mask	Michael J. Cowell, Carl W. Raines, III	2017-08-22
D786443	Filter element	Elizabeth D. Cadogan, John S. Huberty, Michael J. Thuente	2017-05-09
D779674	Filter element having a connector	Elizabeth D. Cadogan, John S. Huberty, Ryan D. Kracht, William A. Mittelstadt, Michael J. Svendsen +1 more	2017-02-21
D778430	Filter cartridge	Gary E. Dwyer, Pierre Legare, Carl W. Raines, III, Serge Dubeau, Mark W. Schulz +1 more	2017-02-07
9517367	Respiratory mask having a clean air inlet chamber	Gary E. Dwyer, William A. Mittelstadt, Carl W. Raines, III, Nathan A. Abel, Michael J. Cowell	2016-12-13	$35,407,000
9510626	Sleeve-fit respirator cartridge	Michael J. Cowell, William A. Mittelstadt, Carl W. Raines, III, Nathan A. Abel	2016-12-06	$36,817,000