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:
Jul. 15, 2014
Filed:
Aug. 12, 2010
Applicants:
Yi Zhang, Beijing, CN;
Jinming Dai, Beijing, CN;
Yajin NI, Gaithersburg, MD (US);
Inventors:
Assignee:
Yisheng Biopharma Holdings Ltd., Kaifeng, CN;
Primary Examiner:
Int. Cl.
CPC ...
C12N 7/02 (2006.01); C12N 7/06 (2006.01); A61K 39/12 (2006.01); C12N 7/00 (2006.01); A61K 39/00 (2006.01);
U.S. Cl.
CPC ...
C12N 7/02 (2013.01); A61K 39/12 (2013.01); C12N 2760/20134 (2013.01); C12N 7/06 (2013.01); C12N 7/00 (2013.01); A61K 2039/525 (2013.01); C12N 2760/20151 (2013.01);
Abstract
A method for purification of viral compositions is provided. In particular, a method for reduction of unwanted residual DNA in a viral composition while retaining the immunogenicity of the virus itself is provided. The resulting immunogenic viral composition is substantially free of residual DNA, and is useful for the manufacture of medical products, such as vaccines designed for human or animal.