| Patents for G01N 15 - Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials (29,551) |
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| 12/19/1990 | EP0402633A1 Device for measuring aerosols and airborne dust |
| 12/18/1990 | US4978859 Method and arrangement for determining the size and/or the shape of a freely falling object |
| 12/13/1990 | WO1990015325A1 Method for frequency analysis of moving fibre aggregates |
| 12/13/1990 | WO1990015317A1 Methods of measuring membrane potential using j-aggregate forming dyes |
| 12/13/1990 | WO1990015070A1 Very large scale immobilized peptide synthesis |
| 12/13/1990 | CA2391491A1 Very large scale immobilized peptide synthesis |
| 12/12/1990 | EP0401439A1 Method and apparatus for measuring the print quality of print media receiving ink jet inks |
| 12/11/1990 | US4977517 Leak and clog detection and removal system for use with particle counters |
| 12/11/1990 | US4977314 For measuring intensity distribution of light rays |
| 12/11/1990 | US4976540 Method for detecting colored foreign particles in light-colored powder and system therefor |
| 12/11/1990 | CA1277708C Particle analyzer and a system utilizing the same |
| 12/11/1990 | CA1277505C Fluctuation analysis for enhanced particle detection |
| 12/05/1990 | CN2066983U Negative pressure sieve analysis instrument for cement fineness |
| 12/04/1990 | US4975863 System and process for grain examination |
| 12/04/1990 | US4975237 Dynamic light scattering apparatus |
| 12/04/1990 | CA1277389C Dust flow inducing monitor |
| 12/01/1990 | CA2014979A1 Pap smear inspection method and apparatus |
| 11/30/1990 | CA2017031A1 Apparatus for the measurement of aerosols and dust or the like distributed in air |
| 11/29/1990 | WO1990014589A1 High sensitivity fluorescent single particle and single molecule detection apparatus and method |
| 11/29/1990 | WO1990014588A1 Arrangement for control of cells suspended in fluid |
| 11/28/1990 | CN1047388A Method and apparatus for measuring nonporous surface area of carbon black |
| 11/27/1990 | US4973909 System for the measurement of the concentration particulates in a flowing gas |
| 11/27/1990 | US4972957 Virtual impactors for aerosols |
| 11/27/1990 | US4972730 System for dosing and determining saturation pressure in a volumetric sorption analyzer |
| 11/26/1990 | CA2056996A1 Arrangement for mounting a tube or member provided with a flange |
| 11/22/1990 | EP0398719A2 Improvements in apparatus for particle determination in liquid metals |
| 11/22/1990 | EP0398652A1 Method for differentiating leukocytes using a flow cytometer |
| 11/22/1990 | DE4005085A1 Method for measuring non-porous carbon black surface area |
| 11/20/1990 | US4972137 Isolation circuit for blood cell counter |
| 11/20/1990 | US4971917 Staining reticulocytes; carbonate salt and fluorescent dye |
| 11/20/1990 | US4971441 Method and apparatus for determining the concentration of a substance which is bonded to particles in a flowing medium |
| 11/19/1990 | CA2009703A1 Method for measuring non-porus surface area of carbon black |
| 11/15/1990 | WO1990013806A1 Method and device for characterizing the texture of porous material |
| 11/15/1990 | WO1990013368A1 Coincidence arbitration in a flow cytometry sorting system |
| 11/14/1990 | EP0397568A2 Inspection method for a mixture of glass balls and fillings, especially used for improving the visibility of road markings at night |
| 11/14/1990 | EP0396716A1 Method for measuring moisture vapor transmission rate in wearing appareil. |
| 11/13/1990 | US4970169 Method for measuring non-porous surface area of carbon black |
| 11/13/1990 | CA1276299C Particle size distribution analysis |
| 11/08/1990 | DE3914797A1 Measuring dust developed by movement of bulk material - letting sample fall in measuring chamber and registering reductions in intensity of defined light beam |
| 11/07/1990 | EP0395932A2 Photoelectric apparatus for determining losses in flexible pipe filters |
| 11/07/1990 | EP0176531B1 Procedure for measuring the content of oil in liquids |
| 11/06/1990 | US4969111 Oil permeameter and method of measuring hydraulic conductivity |
| 11/06/1990 | US4967608 Test chamber for particle emitters |
| 11/06/1990 | US4967591 Apparatus, application and method of making a gas flow regulator operating at a very low flow rate and at sonic velocity for measuring gaseous adsorbtion and desorbtion |
| 11/04/1990 | CA2015983A1 Self-filling anti-siphon fluid flow system for particle analysis methods and instruments |
| 11/04/1990 | CA2015982A1 Cam-driven flow system for use with analytical instruments |
| 11/01/1990 | WO1990013015A1 Continuous-use molten metal inclusion sensor |
| 11/01/1990 | WO1990013014A1 Single-use disposable molten metal inclusion sensor |
| 11/01/1990 | WO1990013013A1 Method and apparatus for screening cells or formed bodies with populations expressing selected characteristics utilizing at least one sensing parameter |
| 11/01/1990 | WO1990012890A1 Method for determination of glucose in whole blood and cuvette and photometer for carrying out said method |
| 11/01/1990 | WO1990007259A3 Method and apparatus for screening cells or formed bodies with populations expressing selected characteristics |
| 10/31/1990 | EP0394712A2 Apparatus for measuring particles in a gas |
| 10/31/1990 | CN2064885U Tester of infiltration potential by density difference method |
| 10/30/1990 | US4967187 Method and apparatus for particle concentration detection using a cloud chamber |
| 10/30/1990 | US4967095 Method and apparatus for detecting and sizing particles on surfaces |
| 10/30/1990 | US4966462 Series cell light extinction monitor |
| 10/30/1990 | CA1275750C Dense star polymers for calibrating/characterizing sub-micron apertures |
| 10/25/1990 | CA2000870A1 Soil infiltrometer |
| 10/24/1990 | EP0393196A1 Molecular weight distribution measurement method, spectrophotodetector and molecular weight distribution measurement apparatus of polymers |
| 10/24/1990 | CN1010131B Porous polyamines |
| 10/23/1990 | US4965725 Neural network based automated cytological specimen classification system and method |
| 10/23/1990 | US4965095 Leaching, deoxidizing, realuminizing |
| 10/18/1990 | WO1990012310A1 Procedure and apparatus for determining size and/or shape distribution |
| 10/18/1990 | WO1990012308A1 Method and apparatus for the identification of particles |
| 10/17/1990 | EP0392943A1 Arrangement for characterizing particles in suspension in a liquid |
| 10/17/1990 | EP0392475A2 Analysis apparatus |
| 10/16/1990 | US4963498 Detection of analyte by flow change after interaction with reagent |
| 10/16/1990 | US4962673 Pressure reduction device for particle sampling from compressed gases |
| 10/16/1990 | CA1275231C Capillary flow device |
| 10/11/1990 | CA2014294A1 Analytical apparatus |
| 10/10/1990 | EP0391861A2 Apparatus for the preparation and execution of tests on the sedimentation rate of organic liquids and others |
| 10/10/1990 | EP0391682A2 Method for measuring particulate size without contacting the particulate and related apparatus |
| 10/10/1990 | EP0391674A2 A method for characterising particles |
| 10/10/1990 | EP0391530A2 Method of measuring average particle size of granular material |
| 10/10/1990 | EP0391256A2 Device and method for ascertaining the particle size distribution and particle total concentration in a gas, especially in air |
| 10/09/1990 | US4962038 Multi-purpose blood diluent and lysing agent for differential determination of lymphoid-myeloid population of leukocytes |
| 10/09/1990 | US4961339 Device for testing articles of clothing for waterproofness |
| 10/04/1990 | WO1990011508A1 Particulate detecting and optical coupling arrangements |
| 10/03/1990 | EP0389512A1 Particle asymmetry analyser |
| 10/03/1990 | CN1045861A Method of measuring particle diameter by optical fibre and apparatus thereof |
| 10/01/1990 | WO1990011832A1 Method and apparatus for capillary hydrodynamic fractionation |
| 10/01/1990 | CA2049283A1 Method and apparatus for capillary hydrodynamic fractionation |
| 09/26/1990 | EP0388502A1 Optical measuring device for detecting cavitation bubbles in fluids |
| 09/20/1990 | WO1990010858A1 Single particle detector using light scattering techniques |
| 09/18/1990 | US4957363 Apparatus for measuring characteristics of particles in fluid by detecting light scattered at the particles |
| 09/18/1990 | US4957010 Method and apparatus for determining particle size distribution |
| 09/18/1990 | US4956993 Useful for field testing soil permeability |
| 09/12/1990 | EP0387137A2 Pressure reduction device for particle sampling from compressed gases |
| 09/12/1990 | EP0386665A2 Method and apparatus for measuring particles in polydispersive systems, and concentration of particles of monodispersive aerosols |
| 09/12/1990 | EP0386063A1 Portable particle analysers |
| 09/12/1990 | EP0386061A1 Particle monitoring system |
| 09/11/1990 | US4956128 Microencapsulation |
| 09/11/1990 | US4955398 Relating to the monitoring of rod-like articles |
| 09/08/1990 | CA2011546A1 Pressure reduction device for particle sampling from compressed gases |
| 09/07/1990 | WO1990010216A1 Method and apparatus for particle size analysis |
| 09/07/1990 | WO1990010215A1 Particle size analysis utilizing polarization intensity differential scattering |
| 09/05/1990 | EP0311655A4 Multi-part differential analyzing apparatus utilizing light scatter techniques |
| 09/04/1990 | US4954715 Method and apparatus for an optimized multiparameter flow-through particle and cell analyzer |
| 09/04/1990 | US4953979 Optical system for signal light detection in a flow particle analysis apparatus |
| 09/04/1990 | US4953978 Particle size analysis utilizing polarization intensity differential scattering |