| Patents for G01N 15 - Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials (29,551) |
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| 04/04/1991 | WO1991004507A1 Examination of objects of macromolecular size |
| 04/04/1991 | WO1991004480A1 Concentration sensor for fibre suspensions |
| 04/02/1991 | US5004923 Capillary flow device |
| 03/27/1991 | EP0419196A2 Determining the concentration of water soluble species in biological fluid |
| 03/26/1991 | US5003611 Method for detection of the presence of undesired microorganisms |
| 03/26/1991 | US5003488 Automatic fluid sedimentation rate measurement apparatus and method |
| 03/26/1991 | US5002892 Titration; Standardizing Product Uniformity |
| 03/26/1991 | US5002399 Measurements of liquid-saturated materials |
| 03/26/1991 | CA1282160C Aerosol particle charge and size analyzer |
| 03/21/1991 | WO1991003725A1 Combined optical train for laser spectroscopy |
| 03/21/1991 | WO1991003724A1 Automatic measurement-range changeover device for surface area measurement apparatus |
| 03/21/1991 | WO1991003723A1 Gas flow passage changeover device |
| 03/20/1991 | EP0418026A2 Apparatus for pretreating cells for flow cytometry |
| 03/19/1991 | US5001424 Apparatus for measuring magnetic particles suspended in a fluid based on fluctuations in an induced voltage |
| 03/19/1991 | US5001067 Determining the concentration of water soluble species in biological fluid |
| 03/19/1991 | CA2025327A1 Determining the concentration of water soluble species in biological fluid |
| 03/13/1991 | EP0417006A2 Synthetic apparatus for inspection of blood |
| 03/13/1991 | EP0416472A2 Process for sizing particles using condensation nucleus counting |
| 03/13/1991 | EP0416362A2 Device for determining pigment grain size distribution in a paint surface |
| 03/13/1991 | EP0416067A1 Method and apparatus for particle size analysis. |
| 03/13/1991 | CN1049909A Gravimetric determination of ioding number of carbon black |
| 03/13/1991 | CN1012015B Debris detector |
| 03/12/1991 | US4999514 Turbidity meter with parameter selection and weighting |
| 03/12/1991 | US4999513 Particle measuring apparatus |
| 03/12/1991 | US4999512 Optical powder impurity detector |
| 03/12/1991 | US4998533 Apparatus and method for in vivo analysis of red and white blood cell indices |
| 03/06/1991 | EP0414783A1 Process and apparatus for automatic determination of physical-chemical parameters of a batch of grains |
| 03/05/1991 | US4998284 Dual color camera microscope and methodology for cell staining and analysis |
| 03/05/1991 | US4997275 Process for the production of a device for the optical analysis of a microparticle flux and application to the production of a cytofluorimeter |
| 03/05/1991 | US4996872 Modular core holder |
| 03/01/1991 | CA2022937A1 Gravimetric determination of the iodine number of carbon black |
| 02/27/1991 | EP0414223A2 Method for measuring an immunologically active material and apparatus suitable for practising said method |
| 02/27/1991 | EP0413812A1 Particle size analysis utilizing polarization intensity differential scattering. |
| 02/27/1991 | EP0413741A1 Mthod of assay of one or more analytes using particles of different types which can be distinguished in flow cytometry. |
| 02/26/1991 | US4995271 Appartaus for determining the permeability of a web to air |
| 02/26/1991 | CA1280804C Particulate measuring system |
| 02/21/1991 | WO1991002330A1 A method of differentiating particles based upon a dynamically changing threshold |
| 02/21/1991 | WO1991002329A1 A method and an apparatus for differentiating a sample of biological cells |
| 02/21/1991 | WO1991002236A1 Multiport parallel flow particle sensor |
| 02/19/1991 | US4994158 Method for analyzing a gas mixture |
| 02/19/1991 | US4993838 Dust monitor |
| 02/19/1991 | US4993271 Liquid in situ multiport monitoring system |
| 02/13/1991 | EP0412431A2 Method and apparatus for sorting particles with a moving catcher tube |
| 02/12/1991 | US4991425 Portable gauge for measuring air flow in a papermaking machine |
| 02/06/1991 | CN1049055A Method for rapid test of air permeability of stereotyped sand mould |
| 02/06/1991 | CN1011554B Ultraviolet scanning system for centrifuger |
| 02/05/1991 | US4990795 Particle counter with photointensity compensation |
| 02/05/1991 | US4990794 Sensing-measuring device for continuous determination of cavitation in dynamic pumps |
| 02/05/1991 | US4989978 Method and apparatus for determining the count per unit volume of particles |
| 02/05/1991 | US4989977 For determining characteristics of cells flowing in a liquid stream |
| 02/05/1991 | US4989464 Method and apparatus for determining particle size distribution |
| 02/05/1991 | CA1279776C Method and apparatus for determining distribution of fluids |
| 01/29/1991 | US4988619 Passageways for sheathed fluids, cells |
| 01/29/1991 | CA1279698C Debris detector |
| 01/29/1991 | CA1279499C Hematocrit measuring apparatus |
| 01/29/1991 | CA1279498C System for measuring the pore volume and permeability of very tight core plugs and method therefor |
| 01/25/1991 | CA2017428A1 Method and apparatus for determining particle size distribution |
| 01/23/1991 | EP0409293A2 Optical coupling gel for flow cytometry apparatuses and the like |
| 01/23/1991 | EP0408758A1 Apparatus for indicating contamination degree in a hydraulic circuit and determining method therefor |
| 01/23/1991 | EP0146621B1 A method of determining the diagnostic significance of the content of a volume of biological sample containing particles |
| 01/22/1991 | US4987539 Apparatus and method for multidimensional characterization of objects in real time |
| 01/22/1991 | US4987086 Method for analysis of subpopulations of cells |
| 01/22/1991 | US4986660 Stock consistency transmitter |
| 01/22/1991 | US4986659 Method for measuring the size and velocity of spherical particles using the phase and intensity of scattered light |
| 01/22/1991 | US4986657 Apparatus for analyzing particles using scattered and fluorescent light |
| 01/22/1991 | US4986109 Abrasion-proof tester |
| 01/16/1991 | EP0408262A2 Optimum centrifugal separation of particles by transient analysis and feedback |
| 01/16/1991 | EP0407499A1 Method and apparatus for real time asbestos aerosol monitoring |
| 01/16/1991 | EP0407382A1 Automatic particle-size analyzer with divided drum |
| 01/15/1991 | US4985174 Auramine o |
| 01/15/1991 | US4984889 Entrained in a fluid stream |
| 01/11/1991 | WO1991000993A1 Measuring apparatus and method |
| 01/10/1991 | WO1991000509A1 Method and microbeads for calibrating a flow cytometer |
| 01/10/1991 | WO1990005310A3 Optical determination of velocity |
| 01/09/1991 | CN2069112U Full atomatic water sifter for measuring particle size of cement |
| 01/08/1991 | WO1991000991A1 Sand detector |
| 01/08/1991 | US4983359 Flow cytometer; fluorescent tagged monoclonal antibody; immunological diagnosis |
| 01/08/1991 | US4983038 Sheath flow type flow-cell device |
| 01/08/1991 | CA2059295A1 Sand detector |
| 01/02/1991 | EP0406137A1 Method for rapid selection of species, lines or individuals in animals or plants by genotyping |
| 01/02/1991 | EP0405729A2 Self-filling anti-siphon fluid flow system for particle analysis methods and instruments |
| 01/02/1991 | EP0405623A2 System for inspecting a dust proofing property |
| 01/02/1991 | EP0405057A1 Deuterated water test method |
| 01/02/1991 | EP0381669A4 Automated analyzer and method for screening cells or formed bodies for enumeration of populations expressing selected characteristics |
| 01/02/1991 | CN2068680U Device for assaying fabric water permeability |
| 01/01/1991 | US4982086 Method of porosity determination in porous media by x-ray computed tomography |
| 01/01/1991 | US4981625 Monodisperse, polymeric microspheres produced by irradiation of slowly thawing frozen drops |
| 01/01/1991 | US4981580 Coincidence arbitration in a flow cytomery sorting system |
| 01/01/1991 | US4981362 Particle concentration measuring method and device |
| 12/31/1990 | CA2019789A1 Process for rapidly selecting animal or vegetable species, varieties, pedigrees or individuals for any genetic character |
| 12/27/1990 | EP0404681A1 Electrostatic aerosol detector |
| 12/27/1990 | EP0404321A2 Cam-driven flow system for use with analytical instruments |
| 12/27/1990 | EP0404093A2 Photoelectron emitting member |
| 12/26/1990 | CN1010978B Apparatus for measurement of particle size distribution |
| 12/25/1990 | US4979824 High sensitivity fluorescent single particle and single molecule detection apparatus and method |
| 12/25/1990 | US4979822 Particle measuring fluid cell having non-corrodible shims |
| 12/25/1990 | US4979403 Procedure for the quantification of dust collectability |
| 12/25/1990 | US4979390 Method and apparatus for testing relative permeability of materials |
| 12/19/1990 | EP0403034A2 Method and arrangement for analysing the size distribution of particles in a fluid production stream |
| 12/19/1990 | EP0402656A2 Excess air contamination level indicator |