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. 26, 2010
Filed:
Sep. 29, 2006
Applicants:
Helmut Schoen, Penzberg, DE;
Guenter Guertler, Penzberg, DE;
Bernhard Rexer, Weilheim, DE;
Johann-peter Thalhofer, Weilheim, DE;
Inventors:
Helmut Schoen, Penzberg, DE;
Guenter Guertler, Penzberg, DE;
Bernhard Rexer, Weilheim, DE;
Johann-Peter Thalhofer, Weilheim, DE;
Assignee:
Roche Diagnostics Operations, Inc., Indianapolis, IN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08H 1/00 (2006.01); C12N 9/50 (2006.01); C12N 9/58 (2006.01); C07K 14/00 (2006.01); C07K 14/37 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for producing solid proteinase K which is insoluble in water and has high purity, the method comprising the steps of adding to an aqueous solution of proteinase K ammonium sulfate in an amount of 0.1 to 0.2 M per 5 minutes up to a final amount of 1.5 to 2 M after 1 hour, thereby precipitating the proteinase K as a solid, and isolating the solid proteinase K.