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:
Aug. 05, 1980
Filed:
Jun. 19, 1978
Applicant:
Inventors:
Gianfranco Fedeli, Milan, IT;
Luigi De Ambrosi, Trino, IT;
Assignee:
Laboraton Derivati Organici, S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07G / ;
U.S. Cl.
CPC ...
435268 ;
Abstract
Protease inhibitor is extracted from fresh or frozen organs of slaughtered animals by an enzymolysis operation which excludes any possibility of interference by azymic autolysis, the enzymolysis being stopped after a time not exceeding 4 hours, whereafter a lysate aqueous solution is obtained by filtration and a quaternary ammonium base is added to the lysate solution to precipitate insolubles, the filtrate being the fraction which contains the expected protease inhibitor.