| Patents for G01N 21 - Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light (181,396) |
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| 05/03/1990 | WO1990004802A1 Stage for the rapid and indexed analysis with a microscope of filters and other supports carrying multiple samples, and method for analyzing such samples by using said stage |
| 05/03/1990 | WO1990004785A1 Provision of density specific blood cells for the structuredness of the cytoplasmic matrix (scm) test |
| 05/03/1990 | WO1990004782A1 Method of detecting worms in meat |
| 05/03/1990 | WO1990004775A1 Luminescence or fluorescence monitoring apparatus and method |
| 05/03/1990 | WO1990004774A1 Optically active biological particle distinguishing apparatus |
| 05/03/1990 | WO1990004773A1 Article inspection system for analyzing end and adjacent sides |
| 05/03/1990 | WO1990004771A1 Method and apparatus for real time asbestos aerosol monitoring |
| 05/03/1990 | WO1990004769A1 Atomic absorption process monitoring |
| 05/03/1990 | WO1990004761A1 Device for measuring physical quantities by transmitting and receiving electromagnetic radiation |
| 05/03/1990 | WO1990004753A1 Photon scanning tunneling microscopy |
| 05/03/1990 | DE3929713A1 Measuring path differences of anisotropic transparent objects - using circular polarisation device with second quarter wave retarder replaceable by compensator |
| 05/03/1990 | DE3904201C1 Apparatus for the photometric determination of the coagulation behaviour of blood, blood plasma or the like |
| 05/02/1990 | EP0366306A2 Method for discriminating authenticity of a bill and an apparatus therefor |
| 05/02/1990 | EP0366235A1 Monitoring systems and methods |
| 05/02/1990 | EP0366151A2 Method and apparatus for photoacoustic immunoassay |
| 05/02/1990 | EP0366096A2 Surface analysis method and a device therefor |
| 05/02/1990 | EP0365874A1 Optical inspection system for solder joints and inspection method |
| 05/02/1990 | EP0365631A1 Resonant piezoelectric chopper for infrared radiation |
| 05/02/1990 | EP0365624A1 Atomic absorption spectrometer. |
| 05/02/1990 | EP0153313B1 Multibeam measuring device |
| 05/02/1990 | CN2056758U Improved compound liquid flash detector |
| 05/02/1990 | CA2001615A1 Sampling flow cell with diamond window |
| 05/01/1990 | US4922338 Line-of-sight inspection system |
| 05/01/1990 | US4922337 Time delay and integration of images using a frame transfer CCD sensor |
| 05/01/1990 | US4922308 Method of and apparatus for detecting foreign substance |
| 05/01/1990 | US4922113 Process for fluorimetric monitoring of functional coatings and compositions and fluorescent agents therefor |
| 05/01/1990 | US4922104 Infrared microspectrometer |
| 05/01/1990 | US4922092 High sensitivity optical imaging apparatus |
| 05/01/1990 | US4921878 Non-fluorescing, non-reflective polyamide for use in diagnostic testing |
| 05/01/1990 | US4921351 Spectrophotometer comprising a xenon flashtube as a light source |
| 05/01/1990 | US4921350 Monochromator second order subtraction method |
| 05/01/1990 | US4921349 Photographic method for monitoring visibility through measurement of transmittance and path radiance |
| 05/01/1990 | US4921348 Method and means for a spatial and temporal probe for laser-generated plumes based on density gradients |
| 05/01/1990 | US4921346 Tunnel current detecting photo-acoustic spectrometer |
| 05/01/1990 | CA1268528A1 Quantitative dispenser for a liquid |
| 05/01/1990 | CA1268348A1 Supersonic nozzle for use in an infrared spectrometer |
| 05/01/1990 | CA1268347A1 Method and apparatus for determining oxygen saturation in vivo |
| 04/30/1990 | CA2001758A1 Apparatus for the simultaneous non-contacting testing of a plurality of points on a test material, as well as the use thereof |
| 04/26/1990 | DE3933461A1 Electronic colour recognition system - has logical evaluation circuit relating signals from multiple channels with optical filter and photosensitive elements |
| 04/26/1990 | CA2001596A1 Article inspection system for analyzing end and adjacent sides |
| 04/25/1990 | EP0365205A2 Apparatus for evaluating quality of raw coffee beans |
| 04/25/1990 | EP0365047A2 Optical air pollution or smoke detection apparatus |
| 04/25/1990 | EP0365006A1 Incubation process |
| 04/25/1990 | EP0364814A1 Method of inspecting bonded wafers |
| 04/25/1990 | EP0364642A1 Gas detection method and apparatus |
| 04/25/1990 | EP0364583A1 Method and device for analyzing thrombocyte aggregation |
| 04/25/1990 | EP0364539A1 Atomic absorption spectrometer. |
| 04/25/1990 | EP0230441B1 Methods and devices for measuring the ratio of incondensables in a gas mixture |
| 04/25/1990 | CN2056511U Portable digital electronic detector of density of woven fabric |
| 04/25/1990 | CN1041563A Method and apparatus for monitoring printing quality for arrangement of multicolour wrok of offset press |
| 04/25/1990 | CA2001410A1 Method and apparatus for realtime asbestos aerosol monitoring |
| 04/24/1990 | US4920386 High spatial and time resolution measuring apparatus |
| 04/24/1990 | US4920385 Panel surface flaw inspection |
| 04/24/1990 | US4920195 Labelled reagents for spectrofluorometric analysis |
| 04/24/1990 | US4919891 Sensor with overcoating and process for making same |
| 04/24/1990 | US4919536 System for measuring velocity field of fluid flow utilizing a laser-doppler spectral image converter |
| 04/24/1990 | US4919535 Reflectance measuring apparatus for making contactless measurements |
| 04/24/1990 | US4919534 Sensing of material of construction and color of containers |
| 04/24/1990 | US4919533 Method for detecting diamonds in remote locations |
| 04/24/1990 | US4919223 Apparatus for remotely controlled movement through tubular conduit |
| 04/24/1990 | US4919099 Combustion monitoring |
| 04/24/1990 | US4918979 Liquid testing apparatus |
| 04/24/1990 | CA1268111A1 Nebulizer particularly adapted for analytical purposes |
| 04/21/1990 | CA2001177A1 Provision of density specific blood cells for the structuredness of the cytoplasmic matrix (scm) test |
| 04/19/1990 | WO1990004166A1 Process and device for measuring gloss |
| 04/19/1990 | WO1990004165A1 Differential refractometer |
| 04/19/1990 | WO1990004164A1 Anesthetic agent identification analyzer and contamination detector |
| 04/19/1990 | WO1990004163A1 Process and device for quantitative detection of optically active substances |
| 04/19/1990 | WO1990004162A1 Variable parameter optical bottle checker |
| 04/19/1990 | WO1990004155A1 Colour detecting electronic system |
| 04/19/1990 | WO1990004154A1 Method and apparatus for providing quality assurance and calibration assurance in a spectrophotometer |
| 04/19/1990 | WO1990004016A1 Optrodes with immobilized enzymes |
| 04/19/1990 | DE3835347A1 Liquid crystal cell with focusing windows |
| 04/19/1990 | DE3825606A1 Compact construction of a Michelson interferometer for the measurement of changes in length and in refractive index |
| 04/19/1990 | CA2001025A1 Method of detecting worms in meat |
| 04/19/1990 | CA2000817A1 Method for immunoassay using photoacoustic spectroscopy |
| 04/18/1990 | EP0364203A1 A liquid drop forming device |
| 04/18/1990 | EP0364083A2 Liquid-vapor change of phase detector |
| 04/18/1990 | EP0363993A2 Chimically sensitive, dimensionally-stable organosilicon material composition and techniques |
| 04/18/1990 | EP0363735A2 Imaging lidar system using non-visible light |
| 04/18/1990 | EP0363666A2 Optical-scanning apparatus |
| 04/18/1990 | EP0363457A1 Elctromagnet for an atomic absorption spectrometer. |
| 04/18/1990 | CN2056252U Portable arsenic meter |
| 04/18/1990 | CN2056251U Laser scattering light intensity tester |
| 04/18/1990 | CN1041450A Optical posted sheet and its grid sheet for elastic-plastic stress analysis |
| 04/17/1990 | US4918492 Michaelson optical fiber interferometer and its application in particular in the measurement of temperatures |
| 04/17/1990 | US4918321 Reflected light scanning method and apparatus for the detection of surface blemishes |
| 04/17/1990 | US4918311 Set point control circuit for an infrared gas analyzer |
| 04/17/1990 | US4918022 Analysis of bulk asbestos samples |
| 04/17/1990 | US4917865 Centrifuge |
| 04/17/1990 | US4917496 Particle size measuring instrument with direct scattered light detection |
| 04/17/1990 | US4917495 Portable colorimeter and method for characterization of a colored surface |
| 04/17/1990 | US4917493 Furnace for electrothermal atomization of samples for analysis by atomic absorption spectrophotometry |
| 04/17/1990 | US4917491 Spectrometry detector head and fiber optic connector |
| 04/17/1990 | US4917031 Cloth-pattern sensing device for a sewing machine |
| 04/17/1990 | EP0216923A4 Diffractosight improvements. |
| 04/17/1990 | CA1267812A1 Adjustable test pack |
| 04/17/1990 | CA1267793A1 Cell arrangement |
| 04/14/1990 | CA2000643A1 Immobilized fluorophores for oxygen sensors |
| 04/12/1990 | DE3834052A1 Method and device for measuring and/or checking the outline (contour) shapes or edges of workpieces |