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. 20, 1991
Filed:
Nov. 13, 1990
Applicant:
Inventors:
Todd Becker, Burlingame, CA (US);
Virgil B Lawlis, Jr, San Mateo, CA (US);
Assignee:
Genencor International Inc., South San Francisco, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435220 ; 435187 ; 435188 ; 435219 ; 435221 ; 435272 ; 4352525 ; 435803 ; 435814 ; 435816 ; 435832 ; 435839 ;
Abstract
Crystalline subtilisin is produced by adding a halide salt, such as sodium chloride or calcium chloride, to a concentrated subtilisin solution (at least about 40 g/1). This process does not produce amorphous subtilisin even at high salt concentrations in the solution. Optionally, subtilisin seed crystals also may be added to the concentrate to speed up the crystallization process.