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:
Jun. 30, 1981
Filed:
Sep. 10, 1979
Abstract
A method of preparing an intravenously administrable immune globulin preparation containing antibodies, in which human blood plasma is fractionated and an immune-globulin-containing fraction is freed from undesired protein impurities by a single or repeated precipitation with polyethylene glycol, is characterized in that the immune-globulin-containing fraction is subjected in a first purification step prior to the polyethylene glycol precipitation to a treatment with an aqueous solution of a salt of an inorganic acid, and in that at least one of the following purification steps is carried out with polyethylene glycol in the presence of a soluble carbohydrate or a non-protein-precipitating polyol, whereupon the immune globulin freed from protein impurities is precipitated from the remaining solution by water-soluble polymers and is finished in a known manner to the pharmaceutical preparation.