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. 25, 1984
Filed:
Aug. 18, 1982
Applicant:
Inventors:
Joachim Schindler, Hilden, DE;
Friedhelm Bartnik, Duesseldorf, DE;
Rolf Schmid, Duesseldorf, DE;
Albrecht Weiss, Erkrath, DE;
Assignee:
Henkel Kommanditgesesllschaft auf Aktien, Dusseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12N / ; C12R / ;
U.S. Cl.
CPC ...
4351721 ; 435223 ; 435254 ; 435939 ;
Abstract
Process for the preparation of acid stable protease having a broad activity spectrum by culturing selected mutants of Rhizopus rhizopodiformis CBS 227.75 under aerobic conditions in a nutrient medium containing assimilable carbon and nitrogen sources, at a pH between 3 and 7 and at a temperature between 25.degree. C. and 50.degree. C., and separating the resulting protease enzyme; the mutants used in the process together with a process for preparation of the mutants.