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:
May. 13, 2003
Filed:
Apr. 23, 2001
Applicant:
Inventor:
Folim G. Halaka, North Chicago, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12Q 1/68 ; C12P 1/934 ; C07C 7/00 ; C07H 2/104 ;
U.S. Cl.
CPC ...
C12Q 1/68 ; C12P 1/934 ; C07C 7/00 ; C07H 2/104 ;
Abstract
This invention describes materials and methods usable for the purification of polyelectrolytes, such as nucleic acids and proteins. The materials of the invention are separation media that possess pH-dependent groups with pKa value in the range of about 5 to about 7. Separation of the nucleic acids or proteins from a separation medium is effected at a neutral or higher pH.