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:
Feb. 06, 1979
Filed:
Mar. 15, 1977
Applicant:
Inventors:
Assignee:
AB Kabi, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12K / ; A61K / ;
U.S. Cl.
CPC ...
195-15 ; 424 89 ;
Abstract
Hepatitis B virus (detectable as its surface antigen HB.sub.s Ag) is produced in a purification preferably suitable for use in preparing a hepatitis vaccine, by contacting a crude biological starting material containing hepatitis B virus with a water-insoluble cross-linked sulfated polysaccharide gel matrix adsorbing agent to adsorb the hepatitis B virus thereon and then desorbing that virus therefrom by treating that hepatitis B virus carrying adsorbent with a desorbing agent.
Andersson, Lars-Olov. (1979). Purifying and isolating method for hepatitis virus to use in preparing (U.S. Patent No. 4138287). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4138287
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile