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:
Mar. 22, 2022
Filed:
Jun. 06, 2018
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Himanshu Jasuja, Woodbury, MN (US);
Michael W. Kobe, Lake Elmo, MN (US);
Michael S. Wendland, North St. Paul, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/16 (2006.01); B01D 53/04 (2006.01); A62B 23/02 (2006.01); B01J 20/26 (2006.01); B01J 20/285 (2006.01); B01J 20/32 (2006.01);
U.S. Cl.
CPC ...
B01D 39/1623 (2013.01); A62B 23/025 (2013.01); B01J 20/265 (2013.01); B01J 20/285 (2013.01); B01J 20/3202 (2013.01); B01D 2201/04 (2013.01); B01D 2201/12 (2013.01); B01D 2201/62 (2013.01); B01D 2239/0407 (2013.01); B01D 2239/065 (2013.01); B01D 2239/0627 (2013.01); B01D 2257/708 (2013.01);
Abstract
An air filter including a filter support that supports polymeric sorbent particles. The polymeric sorbent particles are the reaction product of a hydrolyzed divinylbenzene/maleic anhydride precursor polymeric material with a nitrogen-containing compound, with the nitrogen-containing compound being ionically attached to the hydrolyzed divinylbenzene/maleic anhydride.