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. 26, 2021
Filed:
Mar. 30, 2012
Onur Y. Kas, Boston, MA (US);
Mikhail Kozlov, Belmont, MA (US);
Gabriel Tkacik, Bedford, MA (US);
David Nhiem, Lowell, MA (US);
Philip Goddard, Merrimack, NH (US);
Sherry A. Leon, Leominister, MA (US);
Onur Y. Kas, Boston, MA (US);
Mikhail Kozlov, Belmont, MA (US);
Gabriel Tkacik, Bedford, MA (US);
David Nhiem, Lowell, MA (US);
Philip Goddard, Merrimack, NH (US);
Sherry A. Leon, Leominister, MA (US);
EMD Millipore Corporation, Burlington, MA (US);
Abstract
A composite liquid filtration platform including a composite filtration medium featuring an electrospun polymeric nanofiber layer collected on a porous membrane. When in use, the porous membrane acts as a prefilter used upstream from the polymeric nanofiber layer to remove particles from a liquid stream flowing through the composite filtration structure. The nanofiber layer, positioned downstream from the porous membrane, is used as the retentive layer for critical filtration to provide biosafety assurance, and is responsible for capturing microorganisms like bacteria, mycoplasma or viruses. The composite liquid filtration platform provided herein exhibits permeability advantages over conventional porous membranes or nanofiber mats spun on coarse non-wovens.