David B Silcott from 1135 Saffell Rd, Reisterstown, MD 21136, age 59, Phone: 4108332561

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System And Method For Detecting And Classifying Biological Particles
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US Patent:

6885440, Apr 26, 2005
Filed:

Nov 7, 2002
Appl. No.:

10/289266
Inventors:

David B. Silcott - Reisterstown MD, US
Greg A. Tilley - Monkton MD, US
Brian R. Whitman - Towson MD, US
Steven J. Pratt - Baltimore MD, US
Assignee:

S31, LLC - Owings Mills MD
International Classification:

G01N021/00
G21G005/00
US Classification:

356 73, 356343, 356344, 2504921, 436172
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.

Multi-Spectral Optical Method And System For Detecting And Classifying Biological And Non-Biological Particles
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US Patent:

7106442, Sep 12, 2006
Filed:

Apr 29, 2004
Appl. No.:

10/834537
Inventors:

David B. Silcott - Reisterstown MD, US
Alexander J. Fielding - Manchester MD, US
International Classification:

G01N 15/02
G01N 21/00
US Classification:

356338, 356336, 356343
Abstract:

Enhanced methods, apparatuses and systems are disclosed for the real-time detection and classification of biological and non-biological particles by substantially simultaneously measuring a single particle's characteristics in terms of size and density, elastic scattering properties, and absorption and fluorescence.

Method For Analyzing Air
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US Patent:

8470525, Jun 25, 2013
Filed:

Sep 2, 2011
Appl. No.:

13/225030
Inventors:

Markus Erbeldinger - Pittsburgh PA, US
David B. Silcott - Reisterstown MD, US
Jason Aaron Berberich - Pittsburgh PA, US
Keith E. LeJeune - Export PA, US
Assignee:

Agentase, LLC - Pittsburgh PA
International Classification:

C12Q 1/00
US Classification:

435 4, 435 20, 422408
Abstract:

A method and device are disclosed for continuously detecting, classifying and identifying toxic particles, aerosols and/or vapor in an air sample, in near real time by directing an air sample containing an optional target analyte, in the form of particles, aerosols and/or vapors, enzyme(s), and enzyme substrate(s), to a surface of a collection matrix for forming a biocatalytic reaction product of a plurality of freely mobile optical reporters, and by using a light source with optical reader to interpret the signal from the optical reporter, enabling the detection, classification and identification of toxic particles, aerosols and/or vapor in the air sample.

Method And System For Detecting, Classifying And Identifying Particles
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US Patent:

8520205, Aug 27, 2013
Filed:

Feb 9, 2006
Appl. No.:

11/350413
Inventors:

David B. Silcott - Reisterstown MD, US
Assignee:

Flir Systems, Inc. - Wilsonville OR
International Classification:

G01N 21/00
US Classification:

356338, 356318, 356336, 356343, 436 56, 436172
Abstract:

A method and apparatus is disclosed for detecting, classifying and identifying airborne and non-airborne particles on an individual basis in substantially real time by directing a particle stream to react with optical reporters and markers and then exposing the stream to an excitation source such that individual particles have their multiple identifying characteristics detected.

Optical Agglutination Assay Device
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US Patent:

52905179, Mar 1, 1994
Filed:

Apr 4, 1990
Appl. No.:

7/503623
Inventors:

Brian C. Samuels - Pasadina MD
Jeffry A. Reidler - Frederick MD
David B. Silcott - Kamas UT
Assignee:

Westinghouse Electric Corp. - Pittsburgh PA
International Classification:

G01N 2159
US Classification:

422 58
Abstract:

An optical agglutination assay device for detecting cocaine. The device includes a hollow reaction cell defining a generally planar liquid receiving reaction chamber having a thickness which is insufficient to diminish the intensity of a ray of light passing through an aqueous reaction system in the chamber in a first direction transversely of the plane of the latter. The device also includes a pusher assembly for delivering an aqueous agglutination reaction system and an unknown substance suspected of containing cocaine into the chamber. The agglutination system is such that agglutination is inhibited in the presence of cocaine. The device also includes an optical transmitting and receiving unit aligned with the reaction cell for measuring the intensity of light reflected from the chamber as a measure of the occurrence of agglutination in the reaction system.

Realtime Optical Method And System For Detecting And Classifying Biological And Non-Biological Particles
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US Patent:

20190162646, May 30, 2019
Filed:

Apr 11, 2017
Appl. No.:

16/098228
Inventors:

- Owings Mills MD, US
David B. Silcott - Reisterstown MD, US
International Classification:

G01N 15/14
G01N 15/02
Abstract:

Methods, apparatuses, and systems for detecting and classifying individual airborne biological and non-biological particles, in real time, based on particle size and polarized elastic scatter. Auto-fluorescence content may also be used along with particle size and polarized elastic scatter for further orthogonal classification. With polarized elastic scattering, the degree of linear or circular depolarization produced from particle morphology, refractive index, internal asymmetric structures and molecular optical activity can be used for classifying individual airborne particles. Alternatively, circular intensity differential scattering (CIDS) or linear intensity differential scattering (LIDS) can be used to discriminate individual particles.

Realtime Optical Method And System For Detecting And Classifying Biological And Non-Biological Particles
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US Patent:

20170315045, Nov 2, 2017
Filed:

May 2, 2016
Appl. No.:

15/143726
Inventors:

- Owings Mills MD, US
David B. Silcott - Reisterstown MD, US
International Classification:

G01N 15/14
G01N 15/02
G01N 15/14
G01N 15/00
Abstract:

Methods, apparatuses, and systems for detecting and classifying individual airborne biological and non-biological particles, in real time, based on particle size and polarized elastic scatter. Auto-fluorescence content may also be used along with particle size and polarized elastic scatter for further orthogonal classification. With polarized elastic scattering, the degree of linear or circular depolarization produced from particle morphology, refractive index, internal asymmetric structures and molecular optical activity can be used for classifying individual airborne particles. Alternatively, circular intensity differential scattering (CIDS) or linear intensity differential scattering (LIDS) can be used to discriminate individual particles.