| Patents for G01N 15 - Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials (29,551) |
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| 10/22/1991 | US5059349 Method of measuring the efficiency of gas mask filters using monodispersed aerosols |
| 10/22/1991 | US5059348 Method for measuring the efficiency of gas mask filters |
| 10/22/1991 | US5059310 Analytical sieve apparatus |
| 10/22/1991 | US5058442 Apparatus for measuring liquid vapor adsorption and desorption characteristics of a sample |
| 10/22/1991 | US5058440 Gas sampling device and dilution tunnel used therewith |
| 10/22/1991 | US5058425 Earthen core analyzing means and method for determining the methane storage capacity of the core |
| 10/17/1991 | WO1991015826A1 Automated cytological specimen classification system and method |
| 10/17/1991 | WO1991015750A1 Microfabricated device for biological cell sorting |
| 10/17/1991 | WO1991015749A1 Apparatus for measuring permeability of a rock sample |
| 10/17/1991 | WO1991015748A1 Process for measuring the diffusion and permeation coefficient of a gas |
| 10/17/1991 | DE4012054A1 Gas filter efficiency test equipment - using quasi-mono-disperse aerosols at flow rates encountered in service |
| 10/17/1991 | DE4011731A1 Vorrichtung zur messung der gaspermeation durch gummielastische membranen Apparatus for measurement of gas permeation through elastomeric membranes |
| 10/15/1991 | US5057413 Method for discriminating between intact and damaged cells in a sample |
| 10/15/1991 | US5056918 Method and apparatus for particle size analysis |
| 10/15/1991 | US5056355 Dust monitors and dust monitoring |
| 10/15/1991 | CA1290725C Equipment for measuring the erythrosettling rate of blood using pipettes |
| 10/09/1991 | EP0449820A1 Radiation/microbe bioassay |
| 10/03/1991 | WO1991014936A1 Determination of carbon in fly ash |
| 10/03/1991 | WO1991014935A1 A method and an apparatus for cleaning control |
| 10/03/1991 | WO1991014933A1 Automated process for permeability determinations of barrier resins |
| 10/02/1991 | EP0448931A2 Method for measuring a specimen by the use of fluorescence light |
| 10/02/1991 | EP0448837A2 Method and apparatus for controlled instrumentation of particles with a filter device |
| 10/01/1991 | CA1290060C Interlaboratory quality assurance program |
| 09/25/1991 | EP0448360A1 Chemical monitoring system |
| 09/25/1991 | EP0447991A1 Apparatus for measuring the distribution of the size of diffraction-scattering type particles |
| 09/25/1991 | EP0447739A1 A method and a device for the objective evaluation of the crushing of pile fabrics, particularly velvets for covering motor vehicle seats |
| 09/25/1991 | EP0447529A1 Method for measuring the size and velocity of spherical particles using the phase and intensity of scattered light. |
| 09/24/1991 | US5050987 Particle analyzing apparatus and method for determining nuclear shift index |
| 09/19/1991 | WO1991014235A1 Recognition of patterns in images |
| 09/19/1991 | WO1991014171A1 Turbidity measurement |
| 09/19/1991 | WO1991014169A1 Electro-optical methods and apparatus for high speed, multivariate measurement of individual entities in fiber or other samples |
| 09/19/1991 | DE4106923A1 Porosity measurer for building materials - has injector head for direct infusion of liq. under static pressure via bore in material |
| 09/19/1991 | DE4008348A1 Measuring concn. for size parameters for aerosol particles - involves charging with positive ions and encasing by moving gas shield |
| 09/18/1991 | EP0447060A2 Optimal centrifugal separation |
| 09/18/1991 | EP0447034A2 Testing method for sensitivity of anticancer drug |
| 09/17/1991 | US5048328 Method of determining the porosity and irreducible water saturation of a coal cleat system |
| 09/11/1991 | EP0445962A2 Method of inspecting a honeycomb structural body for purifying exhaust gases and apparatus used in the method |
| 09/11/1991 | EP0445787A1 Photoelectron emitting member and uses thereof |
| 09/10/1991 | US5047963 Particle analyzing apparatus and method for determining nuclear shift index |
| 09/10/1991 | US5047321 Method for analysis of cellular components of a fluid |
| 09/10/1991 | US5046853 Measuring the degree of dispersion in flowing suspensions |
| 09/04/1991 | EP0445022A2 Method and device for calibration of a particle counter |
| 09/04/1991 | EP0444246A2 An apparatus and method for measuring adsorption/desorption |
| 09/04/1991 | EP0444240A1 A method for classifying leukocytes and a reagent used therefor |
| 09/04/1991 | EP0357668B1 Process and device for determining the soot content of flue gases |
| 08/28/1991 | EP0443700A2 Method for counting living cells of microbes and apparatus therefor |
| 08/28/1991 | EP0443593A2 Method and apparatus for detecting flocculation process of components in liquid |
| 08/28/1991 | EP0442960A1 Optical determination of velocity |
| 08/28/1991 | EP0381694A4 Single molecule tracking |
| 08/28/1991 | EP0364583A4 Method and device for analyzing thrombocyte aggregation |
| 08/27/1991 | US5043591 Portable particle analysers having plural detectors |
| 08/27/1991 | CA2036999A1 Detection of contaminants in a liquid stream |
| 08/22/1991 | DE4104014A1 Determining absolute intracellular calcium ion concn. - by staining with calcium sensitive fluorescent dye then scanning fluorescence decay of complexed and free dye |
| 08/22/1991 | DE4004699A1 Photographically measuring size distribution of ground coffee - taken by gas stream through transverse light beam |
| 08/21/1991 | EP0442025A1 Optical particle analyzing apparatus having two types of light sources |
| 08/21/1991 | EP0441904A1 Multiport parallel flow particle sensor. |
| 08/20/1991 | US5041733 Method and apparatus for identifying chromosomes or cells |
| 08/20/1991 | US5040890 Sheathed particle flow controlled by differential pressure |
| 08/20/1991 | US5040424 High volume PM10 sampling inlet |
| 08/14/1991 | EP0440821A1 Gas flow passage changeover device |
| 08/14/1991 | EP0440820A1 Automatic measurement-range changeover device for surface area measurement apparatus |
| 08/13/1991 | US5039935 Apparatus for particle determination in liquid metals |
| 08/13/1991 | US5039614 Method and apparatus for collecting samples for analysis of chemical composition |
| 08/13/1991 | US5039613 Reagents used in a method of classifying leukocytes by flow cytometry |
| 08/13/1991 | US5039487 Methods for quantifying components in liquid samples |
| 08/08/1991 | WO1991011783A1 Recognition of patterns in images |
| 08/08/1991 | WO1991011705A1 Process for measuring fibre parameters by image data processing |
| 08/08/1991 | DE4003648A1 Dust measurement device for air - draws air to be tested through thin walled glass ducts provided with transparent cladding |
| 08/07/1991 | CN1053679A Diaguostic filter for detecting conductive and semiconductive particles in fluid stream |
| 08/06/1991 | US5038035 Automatic structure analyzing/processing apparatus |
| 08/06/1991 | US5037207 Laser imaging system |
| 08/06/1991 | US5037202 Measurement of size and refractive index of particles using the complex forward-scattered electromagnetic field |
| 07/30/1991 | US5036212 Method of and apparatus for analyzing a suspension in a cuvette |
| 07/30/1991 | US5036193 Earthen core analyzing means and method |
| 07/30/1991 | CA1286892C Method for measuring the properties of a composition consisting of a liquid and solid particles and apparatus used in the method |
| 07/27/1991 | CA2034997A1 Diagnostic filter for detecting conductive and semiconductive particles in a fluid stream |
| 07/25/1991 | WO1991010893A1 Microbead reference standard and method of adjusting a flow cytometer to obtain reproducible results using said microbeads |
| 07/25/1991 | DE4002679A1 Filter testing process - using test gas contg. suspended matter useful for various size filter used in clean room technology |
| 07/24/1991 | EP0198909B1 Drop detection system with mirror element |
| 07/24/1991 | CN1053295A Measuring full diameter rock sample porosity by high vacuum high pressure liquid saturation method |
| 07/23/1991 | US5033858 Detection of contaminants in a liquid stream |
| 07/23/1991 | US5033851 Light scattering method and apparatus for detecting particles in liquid sample |
| 07/17/1991 | EP0437141A1 Method and apparatus for evaluating the permeability of a body and their use in the evaluation of dysmigration |
| 07/16/1991 | US5032381 Chemiluminescence-based static and flow cytometry |
| 07/10/1991 | EP0128189B1 Method and apparatus for measuring the content of suspended substances in a flowing medium |
| 07/09/1991 | US5031099 Process for the evaluation of cell pictures |
| 07/09/1991 | US5030843 Apparatus for measuring particles in liquid having a laminar flow condition |
| 07/09/1991 | US5030842 Fine-particle measuring apparatus |
| 07/09/1991 | US5030002 Method and apparatus for sorting particles with a moving catcher tube |
| 07/06/1991 | WO1991010123A1 Method and device for detection of particles in flowing media |
| 07/06/1991 | CA2072743A1 Method and device for detection of particles in flowing media |
| 07/03/1991 | EP0435570A1 Measurement of particle size and distribution |
| 07/03/1991 | EP0435166A2 Particle analyzing method and device for realizing same |
| 07/03/1991 | EP0435111A2 Apparatus for optically measuring specimen |
| 07/02/1991 | US5028545 Biospecific multianalyte assay method |
| 07/02/1991 | US5028135 Combined high spatial resolution and high total intensity selection optical train for laser spectroscopy |
| 07/02/1991 | US5027642 Method of detecting and or removing trace amounts of condensible vapors from compressed gas |
| 07/02/1991 | CA1285665C Nondestructive method for analyzing total porosity of thin sections |
| 06/29/1991 | WO1991010133A1 Method and apparatus for measuring entrained air in concrete |
| 06/29/1991 | CA2047229A1 Method and apparatus for measuring entrained air in concrete |