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. 26, 2005
Filed:
Nov. 07, 2002
David B. Silcott, Reisterstown, MD (US);
Greg A. Tilley, Monkton, MD (US);
Brian R. Whitman, Towson, MD (US);
Steven J. Pratt, Baltimore, MD (US);
David B. Silcott, Reisterstown, MD (US);
Greg A. Tilley, Monkton, MD (US);
Brian R. Whitman, Towson, MD (US);
Steven J. Pratt, Baltimore, MD (US);
S31, LLC, Owings Mills, MD (US);
Abstract
A continuous wave laser excites a biological particle. Detection channels are created to detect light scattered by the biological particle, and to detect any auto-fluorescence emitted by the biological particle. Additional channels can also detect light emitted by auto-fluorescence of the biological particle when simultaneously excited by light at harmonics of the laser's fundamental wavelength. The biological particle is identified using Mie scattering and auto-fluorescence. Ratio-metric calculations generated by calculating ratios of detected peak heights or integrated pulse values in the channels provides additional information for identifying and classifying the biological particle. A warning or alert can be provided if the identified biological particle is a particle of interest.