| Patents for G01N 15 - Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials (29,551) |
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| 09/05/1989 | US4863264 Photoanalysis apparatus with means for correcting flow rate of fluid carrying particles and/or position of applied light beam for examination and photoanalysis method therefor |
| 09/05/1989 | US4862730 Test method for determination of moisture vapor transmission rate |
| 08/29/1989 | US4862047 Apparatus for guiding movement of an unmanned moving body |
| 08/29/1989 | US4860598 Air-stream sampling device |
| 08/29/1989 | US4860582 Method and device for assessing the clogging risks of a well or bore hole passing through a porous revervoir, more particularly a geological formation |
| 08/24/1989 | WO1989007766A1 Automatic sample feeder for suspended samples |
| 08/22/1989 | US4859864 Sensor and method for detecting the presence of air bubbles in liquid |
| 08/16/1989 | EP0327936A2 Mounting for sensors and transmitters |
| 08/16/1989 | EP0327588A1 High sensitivity optical imaging apparatus. |
| 08/16/1989 | EP0327545A1 Determination of particle size and electric charge. |
| 08/15/1989 | US4858154 Interlaboratory quality assurance program |
| 08/15/1989 | US4857451 Method of compensating and calibrating a flow cytometer, and microbead standards kit therefor |
| 08/15/1989 | US4856341 Apparatus for analysis of failure of material |
| 08/09/1989 | EP0327185A2 Real time particle fallout monitor |
| 08/08/1989 | US4854705 Method and apparatus to determine the size and velocity of particles using light scatter detection from confocal beams |
| 08/08/1989 | US4854157 Device for measuring effective porosity |
| 08/03/1989 | DE3801557A1 Method for measuring the concentration of dust in the air |
| 08/02/1989 | EP0325633A1 System for measuring the size distribution of particles dispersedin a fluid |
| 08/02/1989 | EP0131020B1 Method for the volumetric differentiation of leukocytes |
| 08/01/1989 | US4853618 Particle counter with variable sized aperture |
| 08/01/1989 | US4853551 Safety interlock for x-ray particle size analyzer |
| 08/01/1989 | US4852389 System for controlled humidity tests |
| 07/27/1989 | DE3802221A1 Apparatus for measuring the activation of cells in a cell suspension, of whole blood cells or of components of blood plasma |
| 07/25/1989 | US4850707 Optical pulse particle size analyzer |
| 07/25/1989 | US4850112 Fineness gauge |
| 07/19/1989 | EP0324413A2 Optical instrument for measuring particle sizes |
| 07/18/1989 | US4850024 Method and apparatus for classifying white blood cells |
| 07/18/1989 | US4848905 Method of and apparatus for measuring suspended fine particles |
| 07/18/1989 | US4848900 Computerized automatic monitoring and recording system of erythrocyte sedimentation process |
| 07/18/1989 | US4848145 In-situ linear flow proppant conductivity test cell |
| 07/13/1989 | WO1989006353A1 Surface measuring-instrument |
| 07/12/1989 | EP0199774B1 Method for measuring the solid material concentration and the grain size distribution in a suspension by using ultrasounds |
| 07/12/1989 | CN2041041U Detecting device for wide-range particle size analyzer |
| 07/11/1989 | US4847910 Automatic cell sample classifying apparatus |
| 07/11/1989 | US4847204 Analyzing blood |
| 07/06/1989 | DE3806109A1 Method for establishing at least the surface structure of moving spherical particles |
| 07/05/1989 | CN1033695A Material layer volume determination with correction band |
| 07/04/1989 | US4845653 Method of displaying multi-parameter data sets to aid in the analysis of data characteristics |
| 07/04/1989 | US4844610 For a flow cytometer |
| 07/04/1989 | US4843894 Measurement of sizes of falling particles |
| 07/04/1989 | CA1256825A1 Method and apparatus for sorting particles |
| 07/04/1989 | CA1256712A1 Fiber optic probe |
| 06/29/1989 | WO1989005971A1 Method of automatic particle analysis and means for performing the analysis |
| 06/28/1989 | EP0321889A2 Methods and apparatus for quantifying components in liquid samples |
| 06/28/1989 | EP0321888A2 Method and apparatus for detecting and eliminating entrapped gas bubbles in a thick film coating |
| 06/28/1989 | EP0321712A1 Apparatus for filtering an addition of a reagent |
| 06/28/1989 | EP0215871B1 Method for the measurement of sedimentation |
| 06/27/1989 | USRE32964 System for measuring the pore volume and permeability of very tight core plugs and method therefor |
| 06/27/1989 | US4842406 Optical instruments for measuring particle sizes |
| 06/21/1989 | EP0321265A2 Optoelectrical particle detection apparatus |
| 06/20/1989 | US4841244 Method and apparatus for on-sine monitoring of wear in machinery |
| 06/14/1989 | EP0319543A1 Method and apparatus for automated assessment of the immunoregulatory status of the mononuclear leukocyte immune system. |
| 06/13/1989 | US4839602 Means for detecting metal in a stream of particulate matter |
| 06/13/1989 | US4839529 Arrangement for in situ determination of quantity of turbid matter aerosol and/or dust in fluid which flows through a space |
| 06/13/1989 | US4839528 Particle analyzing apparatus using an afocal light beam |
| 06/08/1989 | DE3817063A1 Method of determining the surface area of metal powders |
| 06/06/1989 | US4837446 Apparatus and process for testing uniformity of pulp |
| 06/06/1989 | US4837440 Method and apparatus for characterization of aerosols |
| 06/06/1989 | CA1255214A1 Method of visualizing individual submicroscopic metal particles |
| 06/01/1989 | WO1989004961A1 Hematology cell counting apparatus |
| 06/01/1989 | DE3839290A1 Method and apparatus of measuring the specific surface area on porous or pulverulent materials by measuring the spin-lattice relaxation time of protons of an impregnant |
| 06/01/1989 | DE3739055A1 Blood sedimentation device |
| 05/31/1989 | EP0317815A2 Apparatus for carrying out multiple tests of the erythrosedimentation speed on human or animal blood or on other liquids |
| 05/31/1989 | EP0317809A2 Sheated particle flow controlled by differential pressure |
| 05/31/1989 | EP0229814B1 A flow chamber device for flow cytometers |
| 05/30/1989 | US4835605 Method for the determination of a geometrical parameter for crimped, irregularly structured fibres |
| 05/30/1989 | US4835457 Apparatus and process for determining the deformability of the red corpuscles in the blood |
| 05/30/1989 | US4835103 Differential binding of membrane potential sensitive materials to lymphocytes |
| 05/24/1989 | EP0317139A2 Methods and apparatus for cell analysis |
| 05/24/1989 | EP0316885A2 Optical system for signal light detection in a flow particle analysis apparatus |
| 05/24/1989 | EP0316551A2 Light transmitting-type liquid detection sensor |
| 05/24/1989 | DE3838943A1 Apparatus for lowering the blood pressure |
| 05/23/1989 | US4831867 Methods and devices for measuring the ratio of incondensables in gas mixture |
| 05/18/1989 | WO1989004472A1 Portable particle analysers |
| 05/18/1989 | WO1989004471A1 Particle asymmetry analyser |
| 05/18/1989 | WO1989004470A1 Particle monitoring system |
| 05/17/1989 | EP0316173A1 Particle monitoring system |
| 05/17/1989 | EP0316172A1 Portable particle analysers |
| 05/17/1989 | EP0316171A1 Particle asymmetry analyser |
| 05/17/1989 | EP0316048A2 Measuring apparatus |
| 05/17/1989 | CN1032978A Supersonic wave method and apparatus for testing pulp granularity |
| 05/16/1989 | US4831641 Method and apparatus for analyzing a visible object |
| 05/16/1989 | US4831362 Failure detection system for a metallic debris detection system |
| 05/16/1989 | US4830510 Optical assay method for stored human platelets |
| 05/16/1989 | US4830494 Method and apparatus for measuring particles in a fluid |
| 05/16/1989 | US4830493 UV scanning system for centrifuge |
| 05/16/1989 | US4830194 Granule inspection apparatus |
| 05/16/1989 | US4829838 Method and apparatus for the measurement of the size of particles entrained in a gas |
| 05/16/1989 | CA1254305A1 nalysis of salt concentrations |
| 05/16/1989 | CA1254134A1 Specific binding flow cytometry method |
| 05/11/1989 | DE3737129A1 Apparatus having limited time and particle size resolution for determining the concentration of dust, in particular wood dust, in the air breathed in places of work |
| 05/10/1989 | EP0174946B1 Measurement of particle contents |
| 05/09/1989 | US4828388 Method of measuring concentration of substances |
| 05/09/1989 | US4827761 Sample holder |
| 05/09/1989 | US4827760 Apparatus for measuring the mass of particulates |
| 05/05/1989 | WO1989003986A1 Uv scanning system for centrifuge |
| 05/05/1989 | WO1989003973A1 Method and device for controlling the condition of a lengthy construction element |
| 05/03/1989 | EP0314467A2 X-ray particle size analyzer |
| 05/03/1989 | EP0314293A2 A kit and method for analyses of biological specimens |
| 05/03/1989 | EP0313805A1 Indicators and process to indicate organic compounds in water streams |