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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.:

US 12667812 B1

PDFFull Text
Date of Patent:
Jun. 30, 2026

Filed:

Oct. 13, 2025

Method of creating greater adhesion between asymmetric pvdf active layer and pei fiber support to obtain multilayer janus membrane

Applicant:

King Fahd University of Petroleum and Minerals, Dhahran, SA;

Inventors:

Turki Nabieh Baroud, Dhahran, SA;

Mohammed Abdul Azeem, Dhahran, SA;

Aminu Doguwa, Dhahran, SA;

Assignee:

King Fahd University of Petroleum and Minerals, Dhahran, SA;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Waqaas Ali

Int. Cl.
CPC ...
B01D 69/12 (2006.01); B01D 67/00 (2006.01); B01D 71/02 (2006.01); B01D 71/34 (2006.01); B01D 71/42 (2006.01); B01D 71/64 (2006.01);
U.S. Cl.
CPC ...
B01D 69/1216 (2022.08); B01D 67/002 (2013.01); B01D 71/022 (2013.01); B01D 71/34 (2013.01); B01D 71/421 (2022.08); B01D 71/643 (2022.08); B01D 2325/02834 (2022.08); B01D 2325/06 (2013.01); B01D 2325/36 (2013.01); B01D 2325/38 (2013.01); B01D 2325/40 (2013.01);
Abstract

A multilayer Janus membrane with directional wettability includes a polyvinylidene fluoride (PVDF) layer, a polyetherimide (PEI) layer and an intermediate layer of copper oxide nanoparticles and vinylidene fluoride and hexafluoropropylene copolymer (PVDF-HFP) or polyacrylonitrile (PAN). The intermediate layer is in contact between the PVDF layer and the PEI layer, and the PEI fibers interlock between the granular particles of the intermediate layer.

Find Patent Forward Citations

Baroud, Turki. (2026). Method of creating greater adhesion between asymmetric pvdf active layer and pei fiber support to obtain multilayer janus membrane (U.S. Patent No. 12667812). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12667812

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

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