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. 11, 1994
Filed:
Nov. 23, 1992
Applicant:
Inventors:
Marc Voorhees, Arvada, CO (US);
Ben F Brian, III, Littleton, CO (US);
Lloyd Forrestal, Boulder, CO (US);
Assignee:
Cobe Cardiovascular, Inc., Arvada, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; C02J / ;
U.S. Cl.
CPC ...
210635 ; 210656 ; 424 781 ; 424 7817 ; 521 28 ; 521 30 ; 521 27 ; 422 28 ;
Abstract
A novel biocompatible anion exchange membrane is prepared by reacting the hydroxyl groups of a chromatographic support material with a polyester-cellulose solution containing glycidyl trimethyl ammonium chloride and bis glycidyl polyethylene oxide.