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:
Feb. 22, 2022
Filed:
Mar. 18, 2015
Applicant:
Albert Mihranyan, Uppsala, SE;
Inventor:
Albert Mihranyan, Uppsala, SE;
Assignee:
NVIGOREA AB, Uppsala, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/10 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); D21H 25/04 (2006.01); D21H 11/18 (2006.01); D21H 17/02 (2006.01); D21H 21/52 (2006.01);
U.S. Cl.
CPC ...
B01D 71/10 (2013.01); B01D 67/0004 (2013.01); B01D 67/009 (2013.01); B01D 67/0083 (2013.01); B01D 69/02 (2013.01); D21H 11/18 (2013.01); D21H 17/02 (2013.01); D21H 21/52 (2013.01); D21H 25/04 (2013.01); B01D 2323/283 (2013.01); B01D 2323/30 (2013.01);
Abstract
A filtration membrane comprising cellulose fibres, the membrane having a pore size distribution such that the modal pore diameter is between 10 nm and 25 nm and/or wherein less than 5% of the pore volume comprises pores of greater than 40 nm and having a total porosity greater than 30%.