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Yonas Gebrewold
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Roseville, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Respiratory mask
Patent number
D697199
Issue date
Jan 7, 2014
3M Innovative Properties Company
Seyed A. Angadjivand
D24 - Medical and laboratory equipment
Information
Patent Grant
Respiratory mask
Patent number
D695886
Issue date
Dec 17, 2013
3M Innovative Properties Company
Debra R. Dawson
D24 - Medical and laboratory equipment
Information
Patent Grant
Buckle and respirator using such buckle, having a deformable cinch...
Patent number
8,375,951
Issue date
Feb 19, 2013
3M Innovative Properties Company
Yonas Gebrewold
A44 - HABERDASHERY JEWELLERY
Information
Patent Grant
Filtering face-piece respirator that has expandable mask body
Patent number
8,342,180
Issue date
Jan 1, 2013
3M Innovative Properties Company
Philip G. Martin
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Grant
Respirator having preloaded nose clip
Patent number
8,171,933
Issue date
May 8, 2012
3M Innovative Properties Company
Thomas J. Xue
A41 - WEARING APPAREL
Information
Patent Grant
Filtering face-piece respirator support structure that has living h...
Patent number
8,118,026
Issue date
Feb 21, 2012
3M Innovative Properties Company
Yonas Gebrewold
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Grant
Filtering face-piece respirator having nose clip molded into the ma...
Patent number
8,066,006
Issue date
Nov 29, 2011
3M Innovative Properties Company
Dwayne D. Daugaard
A41 - WEARING APPAREL
Patents Applications
last 30 patents
Information
Patent Application
FILTERING FACE-PIECE RESPIRATOR HAVING SUPPORT STRUCTURE INJECTION...
Publication number
20130340768
Publication date
Dec 26, 2013
3M Innovative Properties Company
Yonas Gebrewold
A41 - WEARING APPAREL
Information
Patent Application
FILTERING FACE-PIECE RESPIRATOR HAVING AN OVERMOLDED FACE SEAL
Publication number
20120125341
Publication date
May 24, 2012
3M Innovative Properties Company
Yonas Gebrewold
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
FILTERING FACE-PIECE RESPIRATOR HAVING SUPPORT STRUCTURE INJECTION...
Publication number
20120125342
Publication date
May 24, 2012
3M Innovative Properties Company
Yonas Gebrewold
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
BUCKLE AND RESPIRATOR USING SUCH BUCKLE, HAVING A DEFORMABLE CINCH...
Publication number
20090193628
Publication date
Aug 6, 2009
3M Innovative Properties Company
Yonas Gebrewold
A44 - HABERDASHERY JEWELLERY
Information
Patent Application
FILTERING FACE-PIECE RESPIRATOR HAVING NOSE CLIP MOLDED INTO THE MA...
Publication number
20090090364
Publication date
Apr 9, 2009
3M Innovative Properties Company
Dwayne D. Daugaard
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Application
FILTERING FACE-PIECE RESPIRATOR SUPPORT STRUCTURE THAT HAS LIVING H...
Publication number
20090078262
Publication date
Mar 26, 2009
3M Innovative Properties Company
Yonas Gebrewold
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Application
FILTERING FACE-PIECE RESPIRATOR THAT HAS EXPANDABLE MASK BODY
Publication number
20090078261
Publication date
Mar 26, 2009
3M Innovative Properties Company
Philip G. Martin
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Application
RESPIRATOR HAVING DYNAMIC SUPPORT STRUCTURE AND PLEATED FILTERING S...
Publication number
20090078265
Publication date
Mar 26, 2009
3M Innovative Properties Company
Yonas Gebrewold
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Application
BUCKLE HAVING A FLEXURAL STRAP ATTACHMENT MEMBER AND RESPIRATOR USI...
Publication number
20090078268
Publication date
Mar 26, 2009
3 M Innovative Properties Company
Daniel J. Stepan
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Application
FILTERING FACE-PIECE RESPIRATOR HAVING BUCKLES INTEGRAL TO THE MASK...
Publication number
20090078266
Publication date
Mar 26, 2009
3M Innovative Properties Company
Daniel J. Stepan
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Application
Respirator That Uses A Predefined Nose Foam Shape
Publication number
20080099022
Publication date
May 1, 2008
3M Innovative Properties Company
Yonas Gebrewold
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Application
Respirator having preloaded nose clip
Publication number
20070044803
Publication date
Mar 1, 2007
Thomas J. Xue
A62 - LIFE-SAVING FIRE-FIGHTING