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:
Apr. 21, 1992
Filed:
Nov. 01, 1990
Lawrence Kass, Hinckley, OH (US);
Cytocolor Inc., Hinckley, OH (US);
Abstract
This invention is directed to the cytology of blood, bone marrow and lymph node cells and to the method of differentiating, identifying and enumerating monocytes among a plurality of cells of hematopoietic origin. More specifically, the invention is directed to stained cells and to the use of a cationic sulfur-containing azo dye capable of staining monocytes a bright red-violet color. The dye is a water soluble quaternary azo dye identified in the Colour Index as Basic Blue 54 (C.I. 11052). The stained monocytes obtained by the process of this invention have color characteristics which permit the identification and differentiation of said cells by use of various instruments including, for example, an image analyzer, microscope, photo microscope, and the like.