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. 05, 1984
Filed:
Apr. 05, 1982
Applicant:
Inventor:
Robert S Molday, Vancouver, CA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; G01N / ; G01N / ; D06M / ;
U.S. Cl.
CPC ...
424-11 ; 436526 ; 436529 ; 436530 ; 435264 ; 210632 ; 252 6253 ; 252 6254 ; 252 6255 ; 424-9 ;
Abstract
The invention relates to colloidal sized particles composed of magnetic iron oxide (Fe.sub.3 O.sub.4) coated with a polysaccharide, preferably dextran, or a derivative thereof having pendant functional groups. The particles have a magnetic moment, are electron dense, and are stable and non-aggregating under physiological conditions. They can be covalently bonded to antibodies, enzymes and other biological molecules and used to label and separate cells, cellular membranes and other biological particles and molecules by means of a magnetic field.
Published as:
US4452773A; CA1217934A;