The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2020
Filed:
Aug. 04, 2016
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 20/06 (2006.01); C01G 45/02 (2006.01); B01D 53/02 (2006.01); B01J 20/28 (2006.01); A62B 23/02 (2006.01); A62B 19/00 (2006.01); B01J 20/30 (2006.01); B01J 20/02 (2006.01); B01D 53/04 (2006.01);
U.S. Cl.
CPC ...
A62B 23/02 (2013.01); A62B 19/00 (2013.01); B01D 53/02 (2013.01); B01J 20/0229 (2013.01); B01J 20/06 (2013.01); B01J 20/28 (2013.01); B01J 20/2808 (2013.01); B01J 20/28057 (2013.01); B01J 20/28061 (2013.01); B01J 20/28078 (2013.01); B01J 20/28083 (2013.01); B01J 20/3007 (2013.01); B01J 20/3021 (2013.01); B01J 20/3028 (2013.01); B01J 20/3035 (2013.01); B01J 20/3085 (2013.01); C01G 45/02 (2013.01); B01D 53/0415 (2013.01); B01D 2253/1124 (2013.01); B01D 2253/25 (2013.01); B01D 2253/306 (2013.01); B01D 2253/308 (2013.01); B01D 2257/302 (2013.01); B01D 2257/406 (2013.01); B01D 2257/704 (2013.01); B01D 2257/708 (2013.01); B01D 2258/06 (2013.01); B01D 2259/4541 (2013.01); B01J 2220/42 (2013.01); C01P 2006/10 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01);
Abstract
A respiratory protection filter includes filtration media. The filtration media includes an iron-doped manganese oxide material having an average pore size (BJH method) in a range from 1 to 4 nm and a surface area (BET) of at least 300 m/g, or at least 350 m/g, or at least 400 m/g.