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.

Date of Patent:
Sep. 30, 2025

Filed:

Jun. 24, 2019
Applicant:

Bl Technologies, Inc., Minnetonka, MN (US);

Inventors:

Zedda Karina, Leipzig, DE;

Carsten Schellenberg, Leipzig, DE;

Judith Richter, Muldestausee, DE;

Assignee:

BL TECHNOLOGIES, INC., Minnetonka, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/44 (2023.01); B01D 61/02 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 69/12 (2006.01); B01D 71/44 (2006.01); B01D 71/52 (2006.01); B01D 71/68 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0013 (2013.01); B01D 61/027 (2013.01); B01D 67/0006 (2013.01); B01D 67/0011 (2013.01); B01D 67/00165 (2022.08); B01D 69/02 (2013.01); B01D 69/1214 (2022.08); B01D 69/125 (2013.01); B01D 71/441 (2022.08); B01D 71/52 (2013.01); B01D 71/68 (2013.01); C02F 1/442 (2013.01); C08J 5/18 (2013.01); B01D 2323/081 (2022.08); B01D 2323/12 (2013.01); B01D 2323/22 (2013.01); B01D 2323/30 (2013.01); B01D 2325/20 (2013.01); B01D 2325/34 (2013.01); C08J 2339/06 (2013.01); C08J 2371/00 (2013.01); C08J 2381/06 (2013.01);
Abstract

Embodiments of the present invention relate to a nanofiltration composite membrane for use to purify water, the methods for preparing said nanofiltration composite membranes and to the nanofiltration composite membranes prepared accordingly.


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