| Patents for G01N 15 - Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials (29,551) | 
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| 10/20/1999 | EP0950178A1 Apparatus and method for measuring the quality of concrete | 
| 10/19/1999 | US5969254 Phase difference measuring apparatus and method | 
| 10/19/1999 | US5969236 Particle sensor | 
| 10/19/1999 | US5968820 Introduce heterogenous particle population into flow stream, continuously classify particles, recover particles based on sensitivity to magnetism | 
| 10/19/1999 | US5967332 Method for concentrating airborne particles and microorganisms by their injection into a swirling air flow | 
| 10/14/1999 | WO1999051980A2 Rapid characterization of polymers | 
| 10/14/1999 | WO1999051963A1 Method and equipment for the detection and analysis of the quantity, etc. of particles in a liquid | 
| 10/14/1999 | WO1999051765A1 Method for detecting micro-organisms in gases | 
| 10/14/1999 | WO1999037814A9 Microparticles with multiple fluorescent signals | 
| 10/13/1999 | EP0949498A2 Apparatus and method for differentiating erythrocytes in urine | 
| 10/13/1999 | EP0770207A4 Rapid determination of blood sedimentation rate | 
| 10/07/1999 | WO1999050645A1 Flow cytometer for analysis of general diagnostic factors in cells and body fluids | 
| 10/07/1999 | WO1999050644A1 Method and device for measuring gas permeability through a porous membrane-like material | 
| 10/07/1999 | WO1999050643A1 Molecular sensing apparatus and method | 
| 10/07/1999 | WO1999050642A1 Apparatus and method for infectious disease detection | 
| 10/07/1999 | WO1999050641A1 Improvements in and relating to particle detectors | 
| 10/07/1999 | WO1999050442A1 A flow injection flow cytometry system for on-line monitoring of bioreactors and method for monitoring | 
| 10/07/1999 | DE19814715A1 Gelatinemembranfilter, Verfahren zu ihrer Herstellung und ihre Verwendung Gelatin membrane filters, processes for their preparation and their use | 
| 10/07/1999 | CA2325860A1 Flow cytometer for analysis of general diagnostic factors in cells and body fluids | 
| 10/07/1999 | CA2325856A1 Method and device for measuring gas permeability through a porous membrane-like material | 
| 10/07/1999 | CA2323773A1 Molecular sensing apparatus and method | 
| 10/07/1999 | CA2321583A1 Improvements in and relating to particle detectors | 
| 10/06/1999 | EP0946969A1 Two-stage kinematic mount | 
| 10/06/1999 | EP0946435A1 Sludge dewatering control system | 
| 10/06/1999 | EP0890094A4 Microfabricated diffusion-based chemical sensor | 
| 10/05/1999 | US5962238 Method and apparatus for cell counting and cell classification | 
| 10/05/1999 | US5961923 The matrix materials are those that are used in as supports in solid phase chemical and biochemical syntheses, immunoassays and hybridization reactions. | 
| 10/05/1999 | CA2053618C Assay of substances using flow cytometry | 
| 09/30/1999 | WO1999028376A3 Reinforcing aluminous filler and rubber composition comprising such a filler | 
| 09/30/1999 | DE19913142A1 Airborne combustion particulate matter detecting system (smoke detector) | 
| 09/30/1999 | DE19817402C1 Sensor device for quantitative evaluation of particles suspended in gas flow e.g. smoke particles in diesel engine exhaust gas | 
| 09/30/1999 | DE19811341A1 Verfahren und Einrichtung zum Bestimmen der Zusammensetzung von fluidisierbaren Feststoffpartikeln Method and apparatus for determining the composition of fluidizable solid particles | 
| 09/30/1999 | DE19809789A1 Measurement of drop size or size distribution in two phase flows, without calibration | 
| 09/29/1999 | EP0945718A1 A method for characterizing samples by determination of a function of at least one specific property of units of said sample | 
| 09/29/1999 | EP0944739A1 Method and apparatus for analysis of chromatographic migration patterns | 
| 09/29/1999 | EP0722566A4 A method for characterizing polymer molecules or the like | 
| 09/29/1999 | CN1229808A Water-absorbing agent and its production process and use | 
| 09/28/1999 | US5958776 Method for classifying and counting immature leukocytes | 
| 09/23/1999 | WO1999041585A3 Instrument for measuring and classifying nanometer aerosols | 
| 09/23/1999 | DE19811876A1 Water turbidity measuring apparatus | 
| 09/22/1999 | EP0943913A2 Method and apparatus for determining the composition of fluidisable solid particles | 
| 09/22/1999 | EP0943911A2 Method for qualifying the cylinder valve on gas cylinders | 
| 09/21/1999 | US5956139 Cross-correlation method and apparatus for suppressing the effects of multiple scattering | 
| 09/21/1999 | US5955295 Micro lysis-analysis process to measure cell characteristics and diagnose diseases | 
| 09/21/1999 | CA2106211C Method of detecting foreign matter in pulp suspension and device for detecting the same | 
| 09/16/1999 | WO1999046577A1 High sensitivity optical fluid-borne particle detection | 
| 09/16/1999 | WO1999046047A2 Detection and characterization of microorganisms | 
| 09/16/1999 | DE19910698A1 Device for measuring properties of particles in flowing fluid | 
| 09/16/1999 | DE19810092A1 Characterization of diverse range of plastic, food, ceramic and metal foams during their formation | 
| 09/16/1999 | DE19808591A1 Standardized flow-through cytometric whole blood assay | 
| 09/15/1999 | EP0941767A2 Method for using blood centrifugation device with movable optical reader | 
| 09/15/1999 | EP0941469A1 Allergen detector system and method | 
| 09/15/1999 | EP0941466A2 Method and device for determining predetermined properties of target particles of a sample medium | 
| 09/15/1999 | EP0941465A2 Method for differentiating or detecting particles in a sample by identifying signal segments of time-resolved, optical raw signals from the sample on the basis of single photon detection | 
| 09/15/1999 | EP0941464A2 Apparatus and method for determination of individual red blood cell shape | 
| 09/15/1999 | CN2338745Y Apparatus for investigating concentration of dust particle in gas | 
| 09/14/1999 | US5953681 For an analytical instrument system | 
| 09/14/1999 | US5952651 Laser manipulation apparatus and cell plate used therefor | 
| 09/14/1999 | US5952560 Particle property measurement | 
| 09/10/1999 | WO1999045386A1 Method for performing blood cell counts | 
| 09/10/1999 | WO1999045385A1 Apparatus for analyzing substantially undiluted samples of biologic fluids | 
| 09/10/1999 | WO1999045384A1 Determination of white blood cell differential and reticulocyte counts | 
| 09/10/1999 | WO1999045365A1 Calibration of a whole blood sample analyser | 
| 09/10/1999 | WO1999045364A1 Sample diluter | 
| 09/10/1999 | WO1999045363A1 Method of measuring erythrocyte sedimentation rate (esr) or plasma fibrinogen of a blood sample | 
| 09/10/1999 | WO1999045362A1 Atmospheric-particle analyser | 
| 09/10/1999 | WO1999045094A1 Selective cell analysis | 
| 09/10/1999 | WO1999044743A1 Disposable apparatus for performing blood cell counts | 
| 09/10/1999 | WO1999044728A1 Method for controlling the integrity of hollow fibre filtering modules | 
| 09/10/1999 | WO1999044593A1 Analysis of quiescent anticoagulated whole blood samples | 
| 09/10/1999 | WO1999027346A8 Method for differentiation of reticulocytes in blood | 
| 09/10/1999 | CA2322968A1 Sample diluter | 
| 09/10/1999 | CA2322948A1 Calibration of a whole blood sample analyser | 
| 09/10/1999 | CA2322945A1 Determination of white blood cell differential and reticulocyte counts | 
| 09/10/1999 | CA2322650A1 Method of measuring erythrocyte sedimentation rate (esr) or plasma fibrinogen of a blood sample | 
| 09/10/1999 | CA2321885A1 Method for controlling the integrity of hollow fibre filtering modules | 
| 09/10/1999 | CA2321684A1 Apparatus for analyzing substantially undiluted samples of biologic fluids | 
| 09/10/1999 | CA2321203A1 Selective cell analysis | 
| 09/08/1999 | EP0940672A2 Determination of carbon in fly ash | 
| 09/08/1999 | EP0940627A1 Flash tube reflector with arc guide | 
| 09/08/1999 | EP0940185A2 Blood centrifugation device with movable optical reader | 
| 09/08/1999 | EP0940148A1 Water-absorbing agent and its production process and use | 
| 09/08/1999 | EP0939843A1 Method and apparatus for the detection of holes and plugged spots | 
| 09/07/1999 | US5949001 Method for aerodynamic particle size analysis | 
| 09/07/1999 | US5948686 Method for performing blood cell counts | 
| 09/07/1999 | US5948684 Simultaneous analyte determination and reference balancing in reference T-sensor devices | 
| 09/02/1999 | WO1999044037A1 Method and apparatus for flow cytometry | 
| 09/02/1999 | WO1999044036A1 Electrostatic deceleration system for flow cytometer | 
| 09/02/1999 | WO1999044035A1 Selective purification and enrichment sorting of flow cytometer droplets based upon analysis of droplet precursor regions | 
| 09/02/1999 | WO1999044034A1 System for the in-line extraction and dilution of a representative sample of a processed medium | 
| 09/02/1999 | WO1999044033A2 Sampling and diluting system for particle size distribution measurement | 
| 09/02/1999 | CA2320835A1 Method and apparatus for flow cytometry | 
| 09/02/1999 | CA2263779A1 Method for using blood centrifugation device with movable optical reader | 
| 09/02/1999 | CA2263620A1 Blood centrifugation device with movable optical reader | 
| 08/31/1999 | US5946220 Computer operated material processing systems and method | 
| 08/31/1999 | US5946093 Particle detection system and method employing an upconversion laser | 
| 08/31/1999 | US5946092 Dual laser heterodyne optical particle detection technique | 
| 08/31/1999 | US5946091 Method and device for precise counting and measuring the particles | 
| 08/26/1999 | WO1999042810A1 A vibratory system for a sorting flow cytometer | 
| 08/26/1999 | WO1999042809A1 Cell analysis methods and apparatus |