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. 14, 1993
Filed:
Jan. 17, 1992
Applicant:
Inventors:
Giuseppe C Viscomi, Siena, IT;
Paolo Rappuoli, Colle Val d'Elsa, IT;
Assignee:
Sclavo S.p.A., Siena, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C07K / ;
U.S. Cl.
CPC ...
424 856 ; 530351 ; 530416 ; 435 6951 ;
Abstract
A process is described for the purification of recombinant human beta interferon which comprises the use of three chromatographic stages carried out in series, utilizing as stationary phases: glass particles of controlled porosity, cation exchange polymer resins and polymer resins able to complex heavy metals.