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Class Information
Number: 250/222.2
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Controlled by article, person, or animal > Inanimate article > Particle detection
Description: Subject matter in which the article is a particle.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8637803 Method and apparatus for measuring the optical forces acting on a particle Jan. 28, 2014
8618465 Seed sensor system and method for improved seed count and seed spacing Dec. 31, 2013
8570512 System, storage mediums, and methods for identifying particles in flow Oct. 29, 2013
8542882 Method for determining flow conditions Sep. 24, 2013
8492701 Measuring station for measuring vehicles Jul. 23, 2013
8314710 Method and system for a filter Nov. 20, 2012
8299416 High speed quantum efficiency measurement apparatus utilizing solid state lightsource Oct. 30, 2012
8274038 Dust control and flow control testing device and method of reducing airborne dust and increasing flow of bulk materials Sep. 25, 2012
8248235 Area monitoring sensor Aug. 21, 2012
8242431 Automated de-icing system for low power lighting apparatus Aug. 14, 2012
8022353 Seed counting and frequency measurement apparatus and method Sep. 20, 2011
8004667 Inspection apparatus for containers Aug. 23, 2011
7973275 Manipulation of objects in potential energy landscapes Jul. 5, 2011
7943916 Method for controlling a blood processing system by observing a separation region and an extraction port May. 17, 2011
7847700 System and method for an optical particle detector Dec. 7, 2010
7821248 Device and method for counting elementary particles emitted by a fluid in a conduit Oct. 26, 2010
7804058 Optical tweezers controlling device Sep. 28, 2010
7786432 Apparatus and method for changing optical tweezers Aug. 31, 2010
7777633 Method and system for determining particle transmittance of a filter in particle detection system Aug. 17, 2010
7772579 Method and apparatus for simultaneously measuring a three dimensional position of a particle in a flow Aug. 10, 2010
7760359 Beam detector distance measurement Jul. 20, 2010
7722723 Method for supplying clear rinsing agents in a program-controlled dishwasher May. 25, 2010
7677198 Method and apparatus for growing a composite metal sulphide photocatalyst thin film Mar. 16, 2010
7663092 Method and apparatus for phase contrast quadrature interferometric detection of an immunoassay Feb. 16, 2010
7623907 Endoscope for observing scattered light from living body tissue and method of observing scattered light from living body tissue Nov. 24, 2009
7612325 Electrical sensor for monitoring degradation of products from environmental stressors Nov. 3, 2009
7605388 Monitoring and control system for blood processing Oct. 20, 2009
7564023 Sorting apparatus and methods Jul. 21, 2009
7361922 Differential absorption lidar apparatus having multiplexed light signals with two wavelengths in a predetermined beam size and beam shape Apr. 22, 2008
7276685 Optical system with photo catalytic reactor and incident beam splitter Oct. 2, 2007
7265832 Optical flow meter for measuring gases and liquids in pipelines Sep. 4, 2007
7234818 Dust detection device for air filter and projector utilizing the same Jun. 26, 2007
7211787 Particle movement device May. 1, 2007
7127356 Sensors and methods for high-sensitivity optical particle counting and sizing Oct. 24, 2006
7115893 Chemical agent sensor having a stationary linear fringe interferometer Oct. 3, 2006
7091509 Method for determining at least one energetic property of a gas fuel mixture by measuring physical properties of the gas mixture Aug. 15, 2006
7087885 Particle size distribution measuring apparatus and method Aug. 8, 2006
7053783 Pathogen detector system and method May. 30, 2006
7038189 Optoelectronic dust sensor and air conditioning equipment in which such optoelectronic dust sensor is installed May. 2, 2006
7034325 Device for measuring gas concentration having dual emitter Apr. 25, 2006
7009169 Method for measuring particle size distribution of a population of particles Mar. 7, 2006
6995351 Multiple optical vortices for manipulating particles Feb. 7, 2006
6972424 High detection rate particle identifier Dec. 6, 2005
6960756 Particle size and shape distribution analyzer Nov. 1, 2005
6919556 System and method for monitoring and evaluating solid and semi-solid materials Jul. 19, 2005
6867410 Apparatus for measuring position of fine particle Mar. 15, 2005
6829044 Compact, high-efficiency condensation nucleus counter Dec. 7, 2004
6794671 Sensors and methods for high-sensitivity optical particle counting and sizing Sep. 21, 2004
6768545 Particle detector Jul. 27, 2004
6737634 Use of multiple optical vortices for pumping, mixing and sorting May. 18, 2004

1 2 3 4

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