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:
Jul. 31, 2001
Filed:
Mar. 29, 1999
Applicant:
Inventors:
Francisco Delmas, Portela LRS, PT;
Carlos Nogueira, Queluz, PT;
Michael Ehle, Ludwigshafen, DE;
Knut Oppenländer, Ludwigshafen, DE;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
C22B 4/700 ; C22B 2/300 ; C22B 2/500 ; C22B 3/000 ; C22B 2/100 ;
U.S. Cl.
CPC ...
C22B 4/700 ; C22B 2/300 ; C22B 2/500 ; C22B 3/000 ; C22B 2/100 ;
Abstract
Solvent extraction of one or more metal ions from an aqueous solution in the presence of hydrocarbon-soluble aminomethylenephosphonic acid derivatives.