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:
Mar. 04, 1997
Filed:
Jul. 18, 1994
Applicant:
Inventors:
Assignee:
Biocine S.p.A., , IT;
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; A23J / ; A61K / ;
U.S. Cl.
CPC ...
435236 ; 4352351 ; 4241891 ; 4242261 ; 530412 ; 530355 ; 530416 ;
Abstract
A process is described for the purification of the hepatitis A virus, which allows one to obtain with good yields a pure product, in which organic material collected by centrifugation after lysis of the culture cells is submitted to gel filtration and successively to ion exchange chromatography.