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:
Sep. 05, 1995
Filed:
Jul. 16, 1993
Applicant:
Inventor:
Charles E Prussak, San Diego, CA (US);
Assignee:
Viagene, San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C02F / ;
U.S. Cl.
CPC ...
435239 ; 536 33 ; 536 59 ; 210660 ;
Abstract
Methods and compositions useful for the separation of viruses, including retroviruses and vital vectors, from preparations are disclosed. Sulfated oligosaccharides with at least about 6 .mu.moles sulfate per gram of oligosaccharide are provided. In one aspect, a sulfated oligosaccharide of the present invention may be used in the purification of a virus, such as a lipid envelope virus. The present invention also discloses methods for the removal of a contaminating virus from a preparation, such as biologic therapeutics.