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. 03, 1992
Filed:
Jan. 23, 1990
Applicant:
Inventors:
Kenneth A Giuliano, Pittsburgh, PA (US);
David C Szlag, Boulder, CO (US);
Assignee:
The United States of America, as represented by the Secretary of Commerce, Washington, DC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07K / ;
U.S. Cl.
CPC ...
435183 ; 435190 ; 435814 ; 435816 ; 210511 ; 210634 ; 210767 ; 422256 ; 530350 ; 530412 ; 530421 ; 530422 ; 530423 ;
Abstract
An aqueous two-phase protein partitioning system is disclosed which employs polyvinylpyrrolidone as the upper phase and maltodextrin as the lower phase and provides a low-cost system for protein partitioning. The system can also be employed with the amion derivatives of chlorotriazine dyes, which bind in a noncovalent manner with the PVP and serve as a ligand for the proteins to be separated.