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:
Jun. 11, 2019
Filed:
Aug. 16, 2011
Applicants:
Rene Faber, Goettingen, DE;
Martin Leuthold, Goettingen, DE;
Inventors:
Rene Faber, Goettingen, DE;
Martin Leuthold, Goettingen, DE;
Assignee:
SARTORIUS STEDIM BIOTECH GMBH, Goettingen, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01N 30/96 (2006.01); G01N 1/18 (2006.01); B01D 15/36 (2006.01); C12N 7/02 (2006.01); B01D 15/18 (2006.01); C12N 7/00 (2006.01);
U.S. Cl.
CPC ...
B01D 15/363 (2013.01); B01D 15/1871 (2013.01); C12N 7/00 (2013.01); C12N 7/02 (2013.01); C12N 2795/14251 (2013.01);
Abstract
The present invention relates to a method for separating viruses from a contaminant-containing liquid medium using two adsorbents having cationic groups, wherein the viruses are adsorbed to the first adsorbent and subsequently eluted and wherein the contaminants present in the resulting eluate are subsequently adsorbed to the second adsorbent. The yield and purity of the viruses obtained as per the method according to the invention is increased by the addition of multivalent anions during the adsorption of the contaminants to the second adsorbent.