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:
Jun. 01, 1993
Filed:
May. 18, 1992
Applicant:
Inventors:
Eiichi Kitazume, Rockville, MD (US);
Yoichiro Ito, Bethesda, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210635 ; 210657 ; 436 82 ; 436161 ; 436164 ; 436178 ; 423 215 ;
Abstract
A method of separating rare earth elements and compounds from mixtures containing the same which comprises separating the rare earth elements and compounds by means of rotational high speed countercurrent chromatography.