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| Number | Title | Issue Date |
| 7895000 | Environmental sensor, particle counting system having an environmental sensor, and methods of operating the same An environmental sensor including an inlet and an outlet such that a flow of fluid moves from the inlet to the outlet, a particle detection portion to detect particles in the fluid, and a controller connected to the particle detection portion. The environmental sens... | 02/22/2011 |
| 7493219 | Method of discriminating particle groups and particle analyzer A method for discriminating particle groups comprises generating, by a particle analyzer, a particle characteristic distribution histogram in which the abscissa indicates respective channels for representing the characteristics of the particles, and the ordinate ind... | 02/17/2009 |
| 7457709 | Systems and methods for particle counting Systems and methods consistent with embodiments of the present invention provide a method for the measurement and analysis of particle counts in flow cytometry and hematology instruments. In some methods for the measurement and analysis of particle counts, a correct... | 11/25/2008 |
| 7395292 | Method for displaying spectral trends in complex signals A method for displaying changes in spectral content of data signals over periods of time using a computer system. The method includes the steps of transforming time segments of digitized data signals into a frequency based spectral representation of the digitized da... | 07/01/2008 |
| 7365849 | Portable, scanning and analyzing apparatus A portable, scanning and analyzing apparatus that uses an integrated scan probe for the scanning operation is described. The integrated scanning probe is formed with a light emitting diode array light source and a photodiode detector array. After a test sample finis... | 04/29/2008 |
| 7279679 | Methods and systems for peak detection and quantitation Methods, systems and computer readable media for identifying peaks in a three-dimensional mass spectrometry/elution time dataset. The dataset is represented as a matrix of intensity values with column and row positions corresponding to specific elution time and m/z ... | 10/09/2007 |
| 7269527 | System integration module for CBRNE sensors A sensor interface system and a sensor integration module support individual sensors and sensor arrays, with network connectivity and critical functions required for analog and digital sensors when deployed in field applications used for chemical, biological, radiat... | 09/11/2007 |
| 7259279 | Process for preparing aldehydes Process for the hydroformylation of olefins by linkage of the input parameters prevailing in the hydroformylation reaction to the target parameters of a hydroformylation reaction, wherein the linkage is achieved by means of at least one synthetic neuronal network. | 08/21/2007 |
| 7155050 | Method of analyzing cell samples, by creating and analyzing a resultant image A method is provided for comparing multiple samples of cell extract containing a plurality of components. The method comprises the steps of preparing at least two samples of cell extract from at least two groups of cells and of exposing each of said sample of said c... | 12/26/2006 |
| 7141416 | Multi-purpose optical analysis optical bio-disc for conducting assays and various reporting agents for use therewith The present invention relates to optical bio-disc systems and related methods and to immobilizing receptor molecules. When a sample is injected into a fluidic circuit, the target agent binds to a capture probe bound in a capture zone. A signal is generated from tags... | 11/28/2006 |
| 7136860 | System and method to determine the validity of an interaction on a network The methods and systems of the invention utilize limited data to yield information about the validity of any given interaction with a website. Once validity information is available, an operator can determine whether or not to continue offering interactions to a giv... | 11/14/2006 |
| 7127356 | Sensors and methods for high-sensitivity optical particle counting and sizing A single-particle optical sensor, which has high sensitivity and responds to relatively concentrated suspensions, uses a relatively narrow light beam to illuminate an optical sensing zone nonuniformly. The zone is smaller than the flow channel so that the sensor res... | 10/24/2006 |
| 7075064 | System and method for extracting spectra from data produced by a spectrometer A system and method are provided of extracting spectra from data produced by temporally indexed spectral scans from a spectrometer and spectrometer. The method includes the operation of receiving a data matrix from the spectrometer. The noise can then be removed fro... | 07/11/2006 |
| 7064826 | Digital optical measurement of particle populations using reduced magnification The present invention relates to a method for determining a distribution of a parameter, e.g. cross-sectional area, of a particle population for identifying specific types of particles therein. A plurality of images of the particles are detected on a pixel array and... | 06/20/2006 |
| 7064336 | Adaptable radiation monitoring system and method A portable radioactive-material detection system capable of detecting radioactive sources moving at high speeds. The system has at least one radiation detector capable of detecting gamma-radiation and coupled to an MCA capable of collecting spectral data in very sma... | 06/20/2006 |
| 7006919 | Real time continuous elemental measurement of bulk material Methods and apparatus for continuous real-time measurement of bulk material using gamma irradiation and neutron irradiation. A DGA device monitors bulk material flow and produces a spectrum that is compared to a baseline spectrum to produce a relative weight/impurit... | 02/28/2006 |
| 6920198 | Methods and apparatus for processing a fluoroscopic image A method for processing a fluoroscopic image includes generating a lag prediction model, scanning an object at a first radiation dosage with an imaging system including at least one radiation source and at least one detector array, and periodically updating the lag ... | 07/19/2005 |
| 6853924 | Diffusion status prediction method and diffusion status prediction system for diffused substance A diffusion status prediction method and system for a diffused substance are disclosed. The diffused substance is replaced by particles, and positions which the particles generated from an emission source arrive at are found by computation. The arrival positions and... | 02/08/2005 |
| 6778912 | Device and method to locate, detect, and remove precipitated aerosol particles A method and apparatus are described by which previously identified aerosol particles that may have precipitated onto surfaces and/or into specific physical regions are detected, removed from said regions, and stored for later examination or destruction. The method ... | 08/17/2004 |
| 6744245 | Particle count correction method and apparatus A method is disclosed which allows more accurate counting of particles where the sample has significant size variability between particles. The method uses flight time and wait time to obtain a corrected count of particles. ... | 06/01/2004 |
| 6625573 | Method and apparatus of molecular weight determination for gases flowing through the compressor A performance map is provided comprising a plurality of performance curves showing head/flow conditions at various compressor speeds, terminating at one end at surge points. The performance curves are converted into deviation curves representing deviation... | 09/23/2003 |
| 6615145 | Determination of particle character in a vertically flowing fluid An apparatus and method for determining particle character moving with a vertical fluid flow towards a multiplet of calibrated sediment traps. The number N of measuring locations, which coincides with the number of n different particle groups (Pn | 09/02/2003 |
| 6587792 | Nuclear packing efficiency Methods and devices for determining the nuclear packing efficiency (NPE) of a cell nucleus and other biological particles. An NPE can be determined by correlating at least one biochemical component, such as DNA content, to nuclear volume using a variety o... | 07/01/2003 |
| 6584411 | Methods to facilitate the calculation of yields of reaction products A method for calculating the yield of a reaction product comprises providing a solid support with a first link, a reference material, and a second link having an attachment site. Chemistry is performed on the attachment site of the second link in one or m... | 06/24/2003 |
| 6573696 | Evaluation method for a particle counter and device for carrying out said method In an evaluation method for a particle counter, a detector generates a signal in response to the presence of particles in a measuring area in which a liquid flow is conveyed. The sensor signal is treated by a signal processing device and is converted into... | 06/03/2003 |
| 6542831 | Vehicle particulate sensor system An apparatus for measuring particles in an exhaust gas of a vehicle. A transmitter is adapted to provide a source of ultraviolet radiation. The radiation travels through the gas and impinges upon the particles in the gas generating a backscattered radiati... | 04/01/2003 |
| 6490530 | Aerosol hazard characterization and early warning network An aerosol hazard classification and early warning network is composed of a large number of detector and analysis units, called "detector stations," which are deployed throughout a region to be warned of a potentially hazardous aerosol intrusion. Such aer... | 12/03/2002 |
| 6405143 | Method and system for determining potential fields A method for determing the potential in a three-dimensional domain containing a source domain of source particles and a target domain of target particles involves assigning the source particles into source particle clusters and the target particles into t... | 06/11/2002 |
| 5715182 | Device for the classification and examination of particles in fluid A particle image in a sample is formed at an imaging position by an objective lens of a microscope, projected on the image picking up plane of a TV camera via a projection lens and is subjected to photo-electric conversion. Image signals from the TV camer... | 02/03/1998 |
| 5676841 | Blood processing systems and methods which monitor citrate return to the donor Blood collection systems and methods minimize citrate toxicity in donors. The systems and methods convey whole blood at a prescribed rate Qb into a separation device for separation into red blood cells and a plasma constituent. The systems and ... | 10/14/1997 |
| 5488567 | Digital analyte detection system A system and method for digitally detecting the presence of analyte particles within a sample is disclosed herein. Each analyte particle is disposed to emit an optical response upon illumination in a known manner. The digital analyte detection system incl... | 01/30/1996 |
| 5452237 | Coincidence error correction system for particle counters A multi-channel particle counting system corrects for coincidence errors by generating at least a first subtractive correction factor for any channel by taking counts from only channels that are lower than the particular channel being corrected. Optionall... | 09/19/1995 |
| 5380663 | Automated system for performance analysis and fluorescence quantitation of samples A system for rapid microbead calibration of a flow cytometer including a suspension of quantitative fluorescent microbead standards and analytical software. The software is used to take information on the microbead suspension from a flow cytometer and ana... | 01/10/1995 |
| 5365559 | Particle counting apparatus for a total counting of particles contained in a liquid sample A particle counting apparatus for counting a total particle counting value contained in a liquid sample comprising, a flow cell in which the liquid sample flows, a light source for irradiating a light beam to the sample liquid in the flow cell, a detector... | 11/15/1994 |
| 5329461 | Digital analyte detection system A system and method for digitally detecting the presence of analyte particles within a sample. Each analyte particle is disposed to emit an optical response upon illumination in a known manner. The digital analyte detection system includes optical apparat... | 07/12/1994 |
| 5319575 | System and method for determining and outputting airborne particle concentration A system and method for determining airborne particle concentrations. When in a fixed time period mode of operation, the system determines actual airborne particle concentration when a normal particle count is detected, and determines an "upper limit" par... | 06/07/1994 |
| 5282151 | Submicron diameter particle detection utilizing high density array Submicron diameter particle detection utilizing a high density array is disclosed. The high density array, such as a charge coupled device, is utilized to detect light scattered at a sensing region by particles illuminated by a light source, such as a las... | 01/25/1994 |
| 5247461 | Method and apparatus for coincidence correction in electrozone particle sensing A method of correcting first approximation data obtained from a conventional electrozone particle sensing apparatus includes steps for calculating factors for correcting for binary and tertiary coincidences, from the raw data and from physical characteris... | 09/21/1993 |
| 4596464 | Screening method for red cell abnormality Red cell samples are passed through a zone of focused illumination, and a scatter vs. time pulse is obtained for each. Each pulse is analyzed for pulse width, pulse area, and pulse shape. These parameters are respectively collected, and three coefficients... | 06/24/1986 |
| 4447883 | Coincidence-error correcting apparatus and method New and improved method and apparatus for the correction of coincident errors attendant the automated detection and counting of mixed particles having detectable characteristics of different levels in particle counting applications wherein the detection o... | 05/08/1984 |
