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:
Mar. 31, 1992
Filed:
Jun. 12, 1989
Applicant:
Inventors:
Vikram P Mehrotra, Terre Haute, IN (US);
Ray E Barker, Terre Haute, IN (US);
Assignee:
International Minerals & Chemical Corp., , NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07K / ;
U.S. Cl.
CPC ...
530399 ; 530419 ; 530421 ;
Abstract
A method for recovering a recombinant protein from a protein solution containing high molecular weight containing proteins by directly adding amine or quaternary ammonium compounds to the solution in amounts sufficient to selectively precipitate the high molecular weight protein contaminants. The high molecular weight precipitates are removed and the solution is further processed to remove low molecular weight contaminating proteins and other non-protein contaminants. The recombinant protein is subsequently recovered and further processed to produce a protein composition suitable for its intended use.