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:
Oct. 29, 1991
Filed:
May. 01, 1990
Applicant:
Inventors:
Wolfgang Moller, Oberursel, DE;
Michael Kraus, Leinfelden-Echterdingen, DE;
Assignee:
Biotest Pharma GmbH, Dreieich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07K / ; C07K / ; C07K / ;
U.S. Cl.
CPC ...
530381 ; 530384 ; 530416 ; 530413 ;
Abstract
A method of isolating blood-clotting Factor IX. A solution containing the Factor IX is adsorbed onto an adsorbent carrying .alpha.-hydroxylamine groups, and the factor is eluted. The Factor IX from the eluate is adsorbed onto a matrix carrying sulfated carbohydrates, with the conductivity adjusted to 13-17 mS/cm, and eluted with a salt gradient. The pure Factor IX is concentrated and freeze-dried.