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. 28, 1994
Filed:
Oct. 15, 1991
Applicant:
Inventor:
Yendra Linnau, Vienna, AT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C07K / ; C07K / ; C07K / ;
U.S. Cl.
CPC ...
435-2 ; 435174 ; 435177 ; 435178 ; 435269 ; 530362 ; 530363 ; 530364 ;
Abstract
In order to avoid the risk of undesired side reactions of blood products, the latter are produced from plasma by using chymotrypsin to inactivate prekallikrein activator. These preparations are obtained by the fractionated enrichment of plasma proteins, with the proviso that a chymotrypsin solution or immobilized chymotrypsin is added to the fractions at any stage of the fractionation process. Before completion of the preparations, the chymotrypsin or the immobilized trypsin is removed from the preparations.