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:
Nov. 27, 2001
Filed:
Dec. 14, 1999
Applicant:
Inventors:
Gregory S. Blank, Menlo Park, CA (US);
Daljit S. Narindray, Pleasanton, CA (US);
Gerardo A. Zapata, Foster City, CA (US);
Assignee:
Genentech, Inc., South San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07K 1/34 ; C07K 1/628 ; C12P 2/106 ;
U.S. Cl.
CPC ...
C07K 1/34 ; C07K 1/628 ; C12P 2/106 ;
Abstract
The invention herein provides a method for recovering a polypeptide comprising exposing a composition comprising a polypeptide to a reagent which binds to, or modifies, the polypeptide, wherein the reagent is immobilized on a solid phase; and then passing the composition through a filter bearing a charge which is opposite to the charge of the reagent in the composition, so as to remove leached reagent from the composition.