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:
Aug. 13, 1996
Filed:
Mar. 20, 1995
Diana H Pliura, Mississauga, CA;
Diane E Wiffen, Georgetown, CA;
Salman Ashraf, Raleigh, NC (US);
Anthony A Magnin, Willowdale, CA;
Hemosol Inc., Etobicoke, CA;
Abstract
A preselected hemoglobin species is separated from contaminants having a different acidity from that of the preselected hemoglobin species, by an overload displacement chromatography process. To remove more acidic contaminants, the process is conducted under anion exchange conditions. To remove more basic contaminants, the process is conducted under cation exchange conditions. In either case, the exchange column is overloaded to displace the hemoglobin species therefrom with contaminants having greater affinity for the column, and using the impure hemoglobin solution as the displacer.