| 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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| 01/24/1990 | EP0351761A2 Sample injector |
| 01/24/1990 | EP0351753A1 Display means of object or epidermis-emissions by an electroluminescence-video process with and without under pressure suction chamber |
| 01/24/1990 | EP0351659A2 Method and arrangement for measuring the concentration of optically active substances |
| 01/24/1990 | CN1039123A Uv scanning system for centrifuge |
| 01/24/1990 | CN1039116A Appauatus and method for spectrophotometric analysis of material in moving process stream |
| 01/24/1990 | CN1039115A Liver function testing apparatus |
| 01/24/1990 | CN1038953A Selection method and apparatus therefor |
| 01/24/1990 | CN1006576B Pulse integrating flame-atom absorption stectral technique |
| 01/23/1990 | US4896211 Asynchronously triggered single field transfer video camera |
| 01/23/1990 | US4896048 Scattering-type particle detection device for use in high temperature process chambers |
| 01/23/1990 | US4896047 Method and apparatus of periodically obtaining accurate opacity monitor readings of an exhaust gas stream |
| 01/23/1990 | US4896040 Method of inspecting floppy disk casing |
| 01/23/1990 | US4895808 Method and apparatus for adsorption detection |
| 01/23/1990 | US4895706 Multi-well filter strip and composite assemblies |
| 01/23/1990 | US4895446 Particle detection method and apparatus |
| 01/23/1990 | US4895444 Detector device for mixing ratio for gasoline and alcohol or the like |
| 01/23/1990 | US4895443 Method and apparatus for electrothermal atomization of samples |
| 01/23/1990 | US4895156 Sensor system using fluorometric decay measurements |
| 01/23/1990 | US4895029 Method of and apparatus for detecting defects of elastic-member joint portion |
| 01/18/1990 | DE3841892C1 Device for detecting fog |
| 01/18/1990 | DE3824478C1 Method and device for the determination of the density of micropores in insulator layers on conductive or semiconductive substrates |
| 01/17/1990 | EP0351257A1 Apparatus for the optical profile control of a tube or bore |
| 01/17/1990 | EP0351011A1 Optical scanning device |
| 01/17/1990 | EP0350837A2 Cell analyzer |
| 01/17/1990 | EP0350768A2 Particle size measuring instrument with direct scattered light detection |
| 01/17/1990 | EP0350722A2 Device for the electrothermal atomisation of a sample for spectroscopical purposes |
| 01/17/1990 | EP0350680A2 Light source module for sheet inspection system |
| 01/17/1990 | EP0350589A1 Determination of the autocollimation angle of a grating coupler |
| 01/17/1990 | EP0195056B1 Optical system for compensating movement in line-scanners |
| 01/16/1990 | US4894790 Input method for reference printed circuit board assembly data to an image processing printed circuit board assembly automatic inspection apparatus |
| 01/16/1990 | US4894552 For evaluating test strips |
| 01/16/1990 | US4894532 Optical fiber sensor with light absorbing moisture-sensitive coating |
| 01/16/1990 | US4894204 Rotor with dynamic pipeting for a centrifuge analysis device |
| 01/16/1990 | US4893935 Apparatus and method for optical density measurements of biomass processes |
| 01/16/1990 | US4893934 Aethalometer |
| 01/16/1990 | US4893932 Surface analysis system and method |
| 01/16/1990 | US4893931 Method for the detection of polarization couplings in a birefringent optical system and application of this method to the assembling of the components of an optical system |
| 01/16/1990 | US4893928 Highly sensitive particle size detection device having noise cancellation |
| 01/16/1990 | US4893894 Evanescent sensor |
| 01/16/1990 | US4893886 Non-destructive optical trap for biological particles and method of doing same |
| 01/16/1990 | US4893512 Swinging-type automatic examination apparatus for piping |
| 01/11/1990 | WO1990000168A1 Improved methods of using chemiluminescent 1,2-dioxetanes |
| 01/11/1990 | DE3844497A1 Verfahren und vorrichtung zur selektion von gegenstaenden Method and device for selection-of Objects |
| 01/11/1990 | DE3827322A1 Geraet zur simultanen atomabsorptionsspektrometrie Geraet for simultaneous atomic absorption spectrometry |
| 01/10/1990 | EP0350409A1 Apparatus for measuring dust present on a surface |
| 01/10/1990 | EP0350253A2 Reducible compounds which provide aniline dyes, and analytical compositions, elements and methods using same |
| 01/10/1990 | EP0350123A1 Appliance for characterising semiconductor samples by high-resolution electroluminescence at a low temperature |
| 01/10/1990 | EP0350073A2 A light diffraction hybridation assay |
| 01/10/1990 | EP0349934A2 Process for the determination of the ionic strength or the specific gravity of queous fluids |
| 01/10/1990 | EP0349839A2 Multicomponent photometer |
| 01/10/1990 | CN1006412B Method of and apparatus for discriminating sharp edge transitions produced during reflective regions |
| 01/09/1990 | US4893259 Optical spectrometer |
| 01/09/1990 | US4893253 Method for analyzing intact capsules and tablets by near-infrared reflectance spectrometry |
| 01/09/1990 | US4893223 Illumination devices for inspection systems |
| 01/09/1990 | US4893008 Scanning optical microscope |
| 01/09/1990 | US4892708 Analysis of blood |
| 01/09/1990 | US4892640 Sensor for the determination of electrolyte concentrations |
| 01/09/1990 | US4892409 Photometric apparatus for multiwell plates having a positionable lens assembly |
| 01/09/1990 | US4892405 Method and apparatus for providing quality assurance and calibration assurance in a spectrophotometer |
| 01/09/1990 | US4892383 Reservoir fiber optic chemical sensors |
| 01/09/1990 | CA1264382A1 Process and apparatus for analyzing a gaseous mixture and a visible emission spectra generator therefor |
| 01/09/1990 | CA1264353A1 Apparatus and method for sensing multiple parameters of sheet material |
| 01/09/1990 | CA1264235A1 Method for inspecting an optical fiber |
| 01/08/1990 | EP0275260A4 Method of detecting a substance using enzymatically-induced decomposition of dioxetanes. |
| 01/08/1990 | EP0267956A4 Index-sight. |
| 01/03/1990 | EP0348792A1 Method and apparatus for processing electric signals obtained by scanning a line of an image |
| 01/03/1990 | EP0348738A2 Method for the non-destructive determination of electronic inhomogeneities in semi-conductor layers |
| 01/03/1990 | EP0348526A1 The use of an appartus for detection of flaws in glass sheets. |
| 01/03/1990 | EP0348496A1 Chemical vapor deposition of mixed oxide films. |
| 01/03/1990 | EP0108799B1 Forward scattering laser particulate sensor |
| 01/03/1990 | CN2050607U Computer-controlled hardometer |
| 01/03/1990 | CN1038518A Automatic stress gauge for glass |
| 01/02/1990 | US4891530 Testing or inspecting apparatus and method for detecting differently shaped surfaces of objects |
| 01/02/1990 | US4891519 Photometering apparatus |
| 01/02/1990 | US4891518 Apparatus for detecting a plurality of gases |
| 01/02/1990 | US4891075 Chelate compound of dihydropyridine, lanthanide compound, amine, aldehyde and diketone |
| 01/02/1990 | US4890933 Transmission method to determine and control the temperature of wafers or thin layers with special application to semiconductors |
| 01/02/1990 | US4890926 Reflectance photometer |
| 01/02/1990 | US4890925 Method and apparatus for detecting particular particulate substance |
| 01/02/1990 | US4890920 In situ particle size measuring device |
| 01/02/1990 | US4890919 Atomic absorption spectrophotometer |
| 01/02/1990 | US4890916 Illuminator for a refractometer |
| 01/02/1990 | US4890915 Method and apparatus for determining optical absorption and emission characteristics of a crystal or non-crystalline fiber |
| 01/02/1990 | US4890481 System for measuring foreign materials in liquid |
| 12/28/1989 | WO1989012838A1 Sample plate liquid scintillation counter |
| 12/28/1989 | WO1989012815A1 Device for estimating suspended solids |
| 12/28/1989 | WO1989012814A1 Molecular weight distribution measurement method, spectro-detector and molecular weight distribution measurement apparatus of polymers |
| 12/28/1989 | EP0214279A4 Method and apparatus for detecting contamination in paper pulp. |
| 12/27/1989 | EP0348375A2 Analyser sealing |
| 12/27/1989 | EP0348191A1 Multiparameter particle analysis |
| 12/27/1989 | EP0347951A2 Apparatus for measuring endotoxin |
| 12/27/1989 | EP0347771A2 Device for enhancing fluorescence and kinetics and methods of using the device |
| 12/27/1989 | EP0347641A2 Method and apparatus for examining without making contact the surface and the interior of a solid body |
| 12/27/1989 | EP0347579A2 Device having a specific support structure for receiving, analysing and treating samples |
| 12/27/1989 | EP0347494A2 Water washable contaminant detection and labelling compositions and method for utilizing same |
| 12/27/1989 | EP0175764B1 Method and agents for measuring protein aging |
| 12/27/1989 | CN2050166U Quasi double-light path turbidimeter |
| 12/27/1989 | CN1038343A Method and apparatus for optically checking appearances of chip-type components |
| 12/26/1989 | US4890290 Laser light source with reduced sensitivity to optical feedback effects |
| 12/26/1989 | US4889998 Apparatus with four light detectors for checking surface of mask with pellicle |