Patents
Patents for G01N 15 - Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials (29,551)
08/1990
08/29/1990EP0384789A2 Particle detector and control system for controlling liquid flow in the particle detector
08/29/1990CN1044988A Simulation prodn of graded standard pattern plates for pollution degree of hydraulic oil
08/29/1990CN1009389B Inserument and method for measuring permeability and porosity of rock core under high pressure
08/28/1990US4952054 Correction of blood count tube readings
08/25/1990WO1990010277A1 Method and apparatus for determining a proliferation index of a cell sample
08/25/1990WO1990010276A1 Dual color camera microscope and methodology for cell staining and analysis
08/23/1990WO1990009573A1 Apparatus and method for determining powder characteristics
08/23/1990DE4005061A1 Computer-aided analysis of fluid-suspended particle sizes
08/22/1990EP0383460A2 Apparatus for measuring particles in liquid
08/22/1990EP0382882A2 Method and device for the computer-controlled analysis of particle size distribution
08/21/1990US4951097 Method and apparatus for bone histomorphometry
08/21/1990US4950908 Flocculant control system
08/21/1990US4950455 Counter for counting while blood cell in blood
08/21/1990US4950073 Submicron particle counting enlarging the particles in a condensation based growth process
08/21/1990CA1273059A1 Particle analyzer for measuring the resistance and reactance of a particle
08/16/1990EP0382343A2 UV-visible monochronometer order subtraction technique
08/16/1990EP0381694A1 Single molecule tracking.
08/16/1990EP0381669A1 Automated analyzer and method for screening cells or formed bodies for enumeration of populations expressing selected characteristics.
08/16/1990EP0262140B1 Method and apparatus for determining parameters of gaseous substances
08/14/1990US4948961 Capillary flow device
08/14/1990US4947677 SAW determination of surface area of thin films
08/14/1990CA1272805A1 Method and apparatus for determining the count per unit volume of particles
08/09/1990WO1990008949A1 Spectroscopy
08/09/1990WO1990008818A1 Device for measuring optical density in situ
08/08/1990EP0381485A2 Improvements in apparatus for particle determination in liquid metals
08/08/1990CN1044535A Detector and analyzar for rapid-determing of multi-dimensional characteristics and vectors of blood
08/07/1990CA1272396A1 Filter test device
07/1990
07/31/1990US4944180 Permeation measurement device
07/31/1990CA1272043A1 Method of and apparatus for measuring floating fine particles
07/18/1990EP0377555A1 A high resolution magnetometer
07/17/1990US4942305 For detecting particles in a gas stream
07/17/1990US4942297 For analyzing a sample from an aerosol environment
07/17/1990US4941868 Optimum centrifugal separation of particles by transient analysis and feedback
07/12/1990WO1990007706A1 Apparatus for indicating contamination degree in a hydraulic circuit and determining method therefor
07/12/1990WO1990007705A1 Arrangement for detecting metallic particles carried by a fluid
07/12/1990WO1990007259A2 Method and apparatus for screening cells or formed bodies with populations expressing selected characteristics
07/10/1990US4940327 Method and apparatus for real time asbestos aerosol monitoring
07/10/1990US4940326 Particle size measuring apparatus
07/04/1990EP0375824A1 Method and apparatus to prepare a suspension for measuring
07/04/1990CN1043566A Method and apparatus for screening cells or formed bodies with populations enpressing selected characteristics
07/04/1990CN1043565A Micro particle analyzer for injection solution
07/04/1990CN1043564A Experiment method for measuring relative penetration of oil, gas and water in reservoir core
07/03/1990USH799 High concentration standard aerosol generator
07/03/1990US4939081 Cell-separation
07/03/1990US4938592 Beam forming and sensing apparatus for aerodynamic particle sizing system
07/03/1990US4937912 Mounting device for sensors and pick-ups
06/1990
06/27/1990EP0327545A4 Determination of particle size and electric charge.
06/26/1990US4936828 Liquid drop image sensor
06/26/1990US4936674 Apparatus and method for determining functions of cells
06/26/1990US4936465 Method and apparatus for fast, reliable, and environmentally safe dispensing of fluids, gases and individual particles of a suspension through pressure control at well defined parts of a closed flow-through system
06/26/1990EP0292523A4 Particle analyzer for measuring the resistance and reactance of a particle.
06/20/1990EP0373169A1 A method and arrangement for determining the size and/or the shape of a freely falling object.
06/19/1990US4934183 Excess air contamination level indicator
06/19/1990US4934182 Process and apparatus for determining water content of materials
06/14/1990WO1990006502A1 System for airborne particle measurement in a vacuum
06/13/1990EP0373058A1 Apparatus for measuring the fineness of wool
06/13/1990EP0273032B1 Process for determining a geometrical parameter for crimped, irregularly structured fibres
06/13/1990EP0256120B1 An in situ particle size measuring device cross-reference to related applications
06/13/1990EP0179119B1 Method of measuring and regulating the concentration of a fibre suspension and a device for carrying out the method
06/13/1990DE3841701A1 Method for the in-situ measurement of sulphuric acid droplets in an airborne state
06/12/1990US4933884 Method of and apparatus for determining threshold values for the analysis of particles contained in a liquid
06/12/1990US4933293 Method of classifying leukocytes by flow cytometry and reagents used in the method
06/06/1990EP0371877A1 Device for measuring the flow of fluid through a porous body
06/05/1990US4932044 Tissue analyzer
06/05/1990US4931774 Liquid-vapor change of phase detector
06/05/1990US4931660 Apparatus for measuring foreign substance content in flowing liquids
06/01/1990CA2003659A1 Method and apparatus for testing relative permeability of materials
05/1990
05/31/1990DE3936093A1 Cell concn. for microscopical investigation - by applying slide and retarding motion of cells by magnetic field with absorbent paper concentrating cells by extracting liq.
05/30/1990EP0243427B1 Process and device for continuous measurement of porosity
05/29/1990US4929847 Rapid determination of sludge content and device therefor
05/29/1990US4929427 Equipment for measuring the erythrosettling rate of blood using pipettes
05/29/1990US4929400 Production of monodisperse, polymeric microspheres
05/29/1990US4929079 Optical granulometry process and devices for broad measuring ranges
05/29/1990US4928537 System for airborne particle measurement in a vacuum
05/29/1990CA1269712A1 Apparatus for the detection and measurement of suspended particulates in a molten metal
05/23/1990EP0369654A1 Particle measurement apparatus
05/22/1990US4927268 Optical analysis
05/22/1990US4927267 Method and apparatus for optically measuring, without contact, the granulometry of a cloud of particles or the roughness of a surface
05/17/1990WO1990005310A2 Optical determination of velocity
05/17/1990DE3838224A1 Device for measuring the degree of hydrophilicity of fibrous material
05/16/1990EP0368716A1 Process and apparatus for testing the permeability of tight-fitting clothes such as particularly used in the aeronautic field
05/16/1990EP0368241A2 Blood filter, method and apparatus for hemorheological measurement
05/16/1990EP0367907A2 Device for measuring the sedimentation speed of blood particles
05/16/1990EP0250419B1 Process for dry dispersion of particles and device for carrying out this process
05/15/1990US4926120 In-line metallic debris particle detection system
05/15/1990US4926114 Apparatus for studying particles having an aperture whose cross-sectional area changes progressively along at least part of its length
05/15/1990US4926113 Means and method for conductometric phase transition porosimetry
05/14/1990EP0272260A4 Flow cell for particle scanner.
05/11/1990CA2002809A1 Optical determination of velocity
05/10/1990DE3930642A1 Particle size detection device with noise cancellation
05/08/1990USRE33213 Light scattering particle detector for wafer processing equipment
05/08/1990US4924153 Apparatus for guiding movement of an unmanned moving body
05/08/1990US4922758 Cell assembly for determining conductivity and permeability
05/03/1990WO1990004774A1 Optically active biological particle distinguishing apparatus
05/03/1990WO1990004772A1 Method for measuring moisture vapor transmission rate in wearing apparel
05/03/1990WO1990004771A1 Method and apparatus for real time asbestos aerosol monitoring
05/02/1990EP0365928A2 Method for processing cell images
05/01/1990US4922092 High sensitivity optical imaging apparatus
05/01/1990US4921350 Monochromator second order subtraction method
05/01/1990US4920810 Sample warming device for surface area analyzer