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:
Jan. 12, 2021
Filed:
Oct. 18, 2017
Applicant:
Gradiant Corporation, Woburn, MA (US);
Inventors:
Prakash Narayan Govindan, Melrose, MA (US);
Looh Tchuin Choong, Somerville, MA (US);
Assignee:
Gradiant Corporation, Woburn, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 61/02 (2006.01); B01D 61/14 (2006.01); B01D 71/56 (2006.01); B01D 71/64 (2006.01); C02F 1/44 (2006.01); B01D 69/02 (2006.01); B01D 69/12 (2006.01); B01D 69/10 (2006.01); B01D 71/68 (2006.01);
U.S. Cl.
CPC ...
B01D 61/025 (2013.01); B01D 61/022 (2013.01); B01D 61/14 (2013.01); B01D 69/02 (2013.01); B01D 69/10 (2013.01); B01D 69/12 (2013.01); B01D 71/56 (2013.01); B01D 71/64 (2013.01); B01D 71/68 (2013.01); C02F 1/441 (2013.01); C02F 1/444 (2013.01); B01D 2311/25 (2013.01); B01D 2323/24 (2013.01); B01D 2323/39 (2013.01); B01D 2325/04 (2013.01);
Abstract
An osmotic membrane comprises an active layer and a composite support layer. The active layer selectively allows passage of water molecules but rejects at least some dissolved ions. The composite support layer includes a side that is bonded to the active layer and comprises an electrospun-fiber sub-layer and a phase-inversion sub-layer.