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:
Apr. 14, 2015
Filed:
Feb. 01, 2012
Xuemei Liang, Pensacola, FL (US);
Mark Murla, Pensacola, FL (US);
Binbing Han, Pensacola, FL (US);
Donald Simonton, Gulf Breeze, FL (US);
Richard Morris, Longwood, FL (US);
Xuemei Liang, Pensacola, FL (US);
Mark Murla, Pensacola, FL (US);
Binbing Han, Pensacola, FL (US);
Donald Simonton, Gulf Breeze, FL (US);
Richard Morris, Longwood, FL (US);
Pall Corporation, Port Washington, NY (US);
Abstract
Asymmetric membranes comprising a first asymmetric porous zone including a first porous asymmetry that increases from the first exterior surface through the first porous zone of the bulk, and a second asymmetric porous zone including a second porous asymmetry that increases from the second exterior surface through the second porous zone of the bulk, wherein the first average pore size is larger than the second average pore size, as well as methods of making and using the membranes, are disclosed.