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. 03, 1996
Filed:
Sep. 09, 1993
Applicant:
Inventors:
Assignee:
Coulter Corporation, Miami, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B32B / ; B32B / ; G01N / ;
U.S. Cl.
CPC ...
2524081 ; 2523152 ; 42721331 ; 427214 ; 42840224 ; 428403 ; 428407 ;
Abstract
The invention describes stable colloidal polymeric particles of 0.2-5.0 microns size which are coated with a first aminodextran layer and a second metallic solid layer, The metal is coated by reduction of a metallic salt or complex by the aminodextran. The metal coated particles, which preferably are gold- or silver-coated polymeric microspheres, produce side scatter and forward shifts in flow cytometry applications that are in agreement with the theoretical shifts predicted for solid gold or silver spheres of similar size in flow cytometry applications,