| Patents for G01N 15 - Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials (29,551) |
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| 06/27/1991 | WO1991009308A1 Separating and resuspending process for superparamagnetic particles and apparatus |
| 06/27/1991 | WO1991009300A1 Improvements in and relating to light transfer systems and improved cell investigation techniques arising therefrom |
| 06/27/1991 | WO1991009296A1 Apparatus and method for particle analysis |
| 06/27/1991 | WO1991009295A1 A method and device for determining the sedimentation rate of blood |
| 06/27/1991 | DE3942361A1 Water suction rate measurer for textiles - has specimen clamp above water containers and reflection light barriers with motor drives following water front |
| 06/27/1991 | CA2072135A1 Separating and resuspending process for superparamagnetic particles and apparatus |
| 06/27/1991 | CA2031647A1 Earthen core analyzing means and method |
| 06/26/1991 | EP0434352A2 Apparatus for measuring particle size distribution by making use of laser beam diffraction and scattering |
| 06/26/1991 | EP0434325A1 Control of opacity of a moving non-woven sheet |
| 06/26/1991 | EP0433800A1 Method and apparatus for detecting micro-holes or examining the state of micro-holes formed on each of rod-like matters |
| 06/26/1991 | EP0179084B1 Method for assessing particle deposits |
| 06/25/1991 | US5026993 Apparatus for monitoring settlement of a solid in a liquid, and a system incorporating same |
| 06/25/1991 | US5026455 Measurement, dilution, filtration to form filter cake; drying, weighing and analyzing results |
| 06/25/1991 | US5026155 Process for sizing particles using condensation nucleus counting |
| 06/19/1991 | EP0433005A2 Automatic particle pattern judging method |
| 06/18/1991 | CA1285044C Weather identification system |
| 06/18/1991 | CA1285023C Electric conductivity sensor for measuring the length and number of fibers inan aqueous suspension |
| 06/18/1991 | CA1284875C Method for detecting dripping droplet |
| 06/13/1991 | WO1991008459A1 Non-imaging laser particle counter |
| 06/12/1991 | EP0430944A1 Automatic sample feeder for suspended samples |
| 06/11/1991 | US5023054 Blood filter and apparatus for hemorheological measurement |
| 06/11/1991 | US5022758 Arrangement for determining the degree of dispersion of magnetic pigments in a dispersion |
| 06/11/1991 | CA1284730C Three fluid method for non-mercury intrusion porosimetry |
| 06/08/1991 | WO1991009297A1 Process and apparatus for counting particles |
| 06/08/1991 | CA2071838A1 Process and apparatus for counting particles |
| 06/06/1991 | DE3940169A1 Pressure change generator for recording material exchange processes - has calibration device compensating for vol. differences |
| 06/05/1991 | WO1991008467A1 Flow monitor |
| 06/05/1991 | EP0430719A2 Compounds and reagents for determination of reticulocytes |
| 06/05/1991 | CN1051981A Blood constituent count measurement |
| 05/30/1991 | WO1991007647A1 Liquid metering and transfer valve assembly |
| 05/30/1991 | WO1991007646A2 Method and apparatus for determining particle size distribution and concentration in a suspension using ultrasonics |
| 05/29/1991 | EP0429397A2 Method and apparatus for monitoring gas concentrations in a fluid |
| 05/29/1991 | DE3938617A1 Measuring mass concn. to ascertain extinction of aerosol - using photometer receiving proportional measuring signal along at least two optical paths |
| 05/29/1991 | DE3928463A1 Procedure and device for optimising the addn. of flocculants - and flocculation assisting agents to sewage sludge where an iterative testing of sludge samples is used to find the optimal conditions |
| 05/28/1991 | US5019349 Air permeable and water absorbing plug |
| 05/28/1991 | US5018396 Cell assembly for determining conductivity and permeability |
| 05/22/1991 | EP0427908A2 Particle counter |
| 05/22/1991 | EP0427824A1 Method for frequency analysis of moving fibre aggregates |
| 05/21/1991 | US5018209 Analysis method and apparatus for biological specimens |
| 05/21/1991 | US5017775 Optical apparatus for detecting cavitation bubbles in liquids |
| 05/21/1991 | US5017497 Particle discriminator and method |
| 05/21/1991 | US5017008 Particle measuring apparatus |
| 05/16/1991 | WO1991006911A1 Automated cytological specimen classification system and method |
| 05/16/1991 | DE4036048A1 Measuring foam or sedimentation height in liquids - using transmitting light measurement with calibration state involving empty or partially-filled specimen vessel |
| 05/16/1991 | DE3937343A1 Measuring conc. and droplet distribution of suspended gases - involves electrostatic separation, solution, infrared absorption of aerosols, esp. oil, removal of dust at defined intervals |
| 05/15/1991 | EP0427093A2 Method and apparatus for measuring small particle size distribution |
| 05/15/1991 | EP0426829A1 High sensitivity fluorescent single particle and single molecule detection apparatus and method. |
| 05/14/1991 | US5016283 Methods and apparatus for immunoploidy analysis |
| 05/14/1991 | US5015856 Automated process for permeability determinations of barrier resins |
| 05/14/1991 | US5015094 Particle size measuring system |
| 05/08/1991 | EP0426341A2 Particle size and velocity determination |
| 05/08/1991 | EP0426232A2 Method of quantitative analysis of drilling fluid products |
| 05/08/1991 | EP0426231A2 Analysis of drilling solids samples |
| 05/08/1991 | EP0325633A4 System for measuring the size distribution of particles dispersedin a fluid |
| 05/08/1991 | EP0149685B1 Method for automatically counting etched pits |
| 05/02/1991 | WO1991005997A1 Method and apparatus for analyzing paper quality |
| 05/02/1991 | WO1991005996A1 Assay method |
| 05/02/1991 | WO1991005995A1 Particle contamination detection in fluids through the external section of a laser |
| 05/02/1991 | WO1991005994A1 Process and measuring device for determining the soot content of exhaust gases |
| 05/02/1991 | EP0425381A1 Apparatus for counting and determination of at least one leucocyte-subpopulation |
| 05/02/1991 | EP0424934A2 Apparatus for counting particles suspended in a fluid |
| 05/02/1991 | DE4041554A1 Measuring sedimentation kinetics of blood cells, etc. - using centrifuge with continuous photometric recording system |
| 05/02/1991 | DE3935636A1 Monitoring flow resistance changes in solid bed reactor column - from pressure changes in initially standardised test flow gas |
| 05/02/1991 | DE3935149A1 Verfahren und messanordnung zur bestimmung des russgehaltes in abgasen Method and test setup for determination of soot content in exhaust gases |
| 04/30/1991 | US5012119 Method and apparatus for monitoring particles using back-scattered light without interference by bubbles |
| 04/30/1991 | US5012118 Apparatus and method for particle analysis |
| 04/30/1991 | US5011286 Multisensor particle counter utilizing a single energy source |
| 04/30/1991 | US5011285 Method and apparatus for performing automatic particle analysis |
| 04/30/1991 | US5011281 Humidification and cloud chamber block for particle concentration detection |
| 04/30/1991 | US5011279 Fiber-optical sensor |
| 04/30/1991 | US5010827 Apparatus for detecting carryover particles in the interior of a furnace |
| 04/29/1991 | CA2028053A1 Analysis of drilling solids samples |
| 04/29/1991 | CA2027496A1 Method of quantitative analysis of drilling fluid products |
| 04/24/1991 | EP0424167A2 Particle classification |
| 04/24/1991 | EP0423706A2 Blood constituent count measurement |
| 04/24/1991 | EP0423328A1 Coincidence arbitration in a flow cytometry sorting system. |
| 04/23/1991 | US5009503 Automated capillary scanning system |
| 04/18/1991 | WO1991005237A2 Single particle detector utilizing light extinction |
| 04/18/1991 | WO1991005236A1 Method for measuring the size and velocity of spherical particles using the phase and intensity of scattered light |
| 04/18/1991 | DE3931497A1 Arrangement for detecting contaminants in fluid esp. lubricant - converts flow into rotary flow in sensor head for separation by specific wt. and subsequent measurement |
| 04/17/1991 | EP0422747A2 X-ray particle size analyzer |
| 04/17/1991 | EP0422616A2 Apparatus for and method of fractionating particle in particle-suspended liquid in conformity with the properties thereof |
| 04/17/1991 | EP0422540A2 Arrangement for the measurement of the proportion of asbestos dust in air |
| 04/17/1991 | CN1050771A Method and apparatus for screening cell of formed bodies with populations expressing selected characteristics utilizing at least one sensing parameter |
| 04/17/1991 | CA2022378A1 Blood constituent count measurement |
| 04/16/1991 | US5008906 Consistency measuring device for a slurry containing defoamer |
| 04/16/1991 | US5008558 System for detecting minute particles on or above a substrate |
| 04/16/1991 | US5008185 Methods and apparatus for the quantitation of nuclear proteins |
| 04/16/1991 | US5007737 Programmable detector configuration for Fraunhofer diffraction particle sizing instruments |
| 04/16/1991 | US5007732 Flow-cell device |
| 04/16/1991 | US5007297 Particle size measuring system with automatic dilution of sample |
| 04/16/1991 | US5007296 Apparatus for measuring a liquid specimen |
| 04/11/1991 | DE3931119C1 Simultaneously measuring size and speed of particles and bubbles - applying pair of crossing beams of different wavelengths and intensity distribution to multiphase carrying stream |
| 04/10/1991 | EP0421736A2 Method and apparatus for measuring optical properties of biological speciments |
| 04/10/1991 | EP0421406A2 Apparatus and method for separating or measuring particles to be examined in a sample fluid |
| 04/10/1991 | EP0229815B1 A device for measuring the light scattering of biological cells in flow cytophotometers |
| 04/09/1991 | US5006986 Method of demarcating two-dimensional distribution |
| 04/09/1991 | US5006312 Quantitative analysis |
| 04/09/1991 | US5006231 Flocculant control system |
| 04/09/1991 | US5005434 Autosampler with a means for detecting air bubble in specimen |