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:
Oct. 19, 2021
Filed:
Mar. 07, 2018
Applicant:
Palo Alto Research Center Incorporated, Palo Alto, CA (US);
Inventors:
David K. Biegelsen, Portola Valley, CA (US);
Armin R. Volkel, Mountain View, CA (US);
Assignee:
PALO ALTO RESEARCH CENTER INCORPORATED, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 15/02 (2006.01); B82Y 15/00 (2011.01); B01D 33/80 (2006.01); B01D 65/00 (2006.01); B01D 71/02 (2006.01); B01D 69/10 (2006.01); B01D 63/08 (2006.01); B01D 61/02 (2006.01);
U.S. Cl.
CPC ...
B01D 15/02 (2013.01); B01D 33/801 (2013.01); B01D 63/087 (2013.01); B01D 65/003 (2013.01); B01D 69/10 (2013.01); B01D 71/021 (2013.01); B01D 61/027 (2013.01); B01D 2239/1208 (2013.01); B01D 2251/602 (2013.01); B82Y 15/00 (2013.01);
Abstract
Nanofiltration of aqueous solutions or other water-based fluids in various applications, such as desalination, dialysis, seawater purification, for example, may be enhanced through precisely controlling a filtration cutoff within graphene oxide nanofilters. By initially compressing and constraining the stacked thickness of multiple graphene oxide layers deposited between porous substrates, the interlayer gap size, and thus, the filtration cutoff may be adjusted and optimized.