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:
Feb. 20, 2001
Filed:
Mar. 01, 1996
Applicant:
Inventors:
Nathaniel T. Becker, Burlingame, CA (US);
Edit L. Braunstein, Rochester, NY (US);
Robert Fewkes, Webster, NY (US);
Ernst H. Gros, Kantvik, FI;
Meng H. Heng, Rochester, NY (US);
Assignee:
Genencor International, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N 9/14 ;
U.S. Cl.
CPC ...
C12N 9/14 ;
Abstract
A method for preparing a crystalline cellulase enzyme is provided which comprises preparing an aqueous solution containing cellulase enzyme and adding to the aqueous solution a salt comprising an anion selected from the group consisting of sulfate, phosphate, formate, acetate, sorbate, chloride, bromide, fluoride or iodide, and a cation selected from the group consisting of sodium, ammonium, magnesium, potassium or calcium, wherein the aqueous solution is at a temperature between 10° C. and 60° C.