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. 30, 2002
Filed:
Feb. 11, 2000
Joseph Y. Lee, South Setauket, NY (US);
Richard F. Salinaro, Hastings on Hudson, NY (US);
Ioannis P. Sipsas, Forest Hills, NY (US);
Pall Corporation, East Hills, NY (US);
Abstract
The present invention provides an ion exchange membrane having a porous polymeric support grafted with an organic moiety to which is covalently bonded at least one ion exchange group, and methods for preparing the ion exchange membrane. A method for treating a fluid containing ions wherein ions are removed by contacting the fluid with an ion exchange membrane of the present invention is also provided. In addition, the present invention provides a filtration apparatus for removing ions from a fluid, which filtration apparatus utilizes an ion exchange membrane of the present invention.