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:
Sep. 15, 1992
Filed:
Feb. 26, 1991
Applicant:
Inventor:
Bjorn Engstrom, Sundsvall, SE;
Assignee:
Pharmacia LKB Biotechnology AB, Uppsala, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2101982 ; 210656 ;
Abstract
Anion exchangers for chromatographic separation, containing two positive charges at a distance of two atoms from each other. The invention comtemplates in particular anion exchangers containing two quaternary amino groups.