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:
Feb. 03, 2026

Filed:

Apr. 01, 2021
Applicants:

Fujifilm Manufacturing Europe B.v., Tilburg, NL;

Fujifilm Corporation, Tokyo, JP;

Inventors:
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/50 (2006.01); B01D 61/44 (2006.01); C08J 5/22 (2006.01);
U.S. Cl.
CPC ...
C08F 2/50 (2013.01); B01D 61/445 (2013.01); C08J 5/2206 (2013.01);
Abstract

Bipolar membranes (BPMs) comprising a cation exchange layer (CEL) and an anion exchange layer (AEL) wherein the colour properties of the CEL are visibly different to the colour properties of the AEL. The CEL and the AEL are easily distinguishable so that a stack of membranes comprising the BPMs can be built fast and without mistakes in layer order.


Find Patent Forward Citations

Van Rijen, Adrianus. (2026). Bipolar membrane (U.S. Patent No. 12540202). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12540202

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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