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:
May. 17, 2022
Filed:
Mar. 15, 2021
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventor:
Matthew A. Rankin, Brockville, CA;
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/00 (2006.01); B01J 20/02 (2006.01); B01J 20/28 (2006.01);
U.S. Cl.
CPC ...
B01J 20/0229 (2013.01); B01J 20/2808 (2013.01); B01J 20/28057 (2013.01); B01J 20/28083 (2013.01);
Abstract
A filter media composition includes a ferrihydrite material having an average pore size (BJH) in a range from 1 to 3 nm and a surface area (BET) of at least 200 m/g or at least 250 m/g or at least 300 m/g.