| 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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| 12/26/1989 | US4889992 Automatic infrared microorganism detection instrument |
| 12/26/1989 | US4889815 Nephelometric method for determination of an antigen or antibody content in whole blood |
| 12/26/1989 | US4889814 Through a gas-chromatographic separation column over a bed of mercuric oxide |
| 12/26/1989 | US4889690 Photoelectric receivers to measure emitted fluorescent light intensity; luminescent phosphors |
| 12/26/1989 | US4889593 Eluting through cation exchange resin; measuring uv absorption |
| 12/26/1989 | US4889427 Method and apparatus for detecting low concentrations of (bio) chemical components present in a test medium using surface plasmon resonance |
| 12/26/1989 | US4889407 Optical waveguide sensor and method of making same |
| 12/20/1989 | EP0347298A2 Method and device for the measurement of visibility through a medium of varying opacity |
| 12/20/1989 | EP0347039A2 Method for discriminating between intact and damaged cells in a sample |
| 12/20/1989 | EP0346665A1 Circuit for operating a pulse-modulated infrared radiation source |
| 12/20/1989 | EP0346609A2 Rapid determination of sludge content and device therefor |
| 12/20/1989 | EP0346387A1 Improved automatic atomic-absorption spectrometer |
| 12/20/1989 | CN2049770U Computerized instrument for measuring thermoluminescence of mineral |
| 12/20/1989 | CN1038166A Nondispersive type infra-red photometer calibrating apparatus |
| 12/20/1989 | CN1038165A Rapid determination of sludge content and device therefor |
| 12/19/1989 | US4888484 Apparatus and method for spectrophotometric analysis of a material in a moving process stream |
| 12/19/1989 | US4887901 Optical fiber detection system using an intensity-modulating sensor |
| 12/19/1989 | US4887892 Method and method and apparatus for control of light intensity for image analysis |
| 12/18/1989 | EP0304478A4 Process for nitrogen oxides reduction with minimization of the production of other pollutants. |
| 12/14/1989 | WO1989012375A1 Optical microphone |
| 12/14/1989 | WO1989012224A1 Interferometric imaging system |
| 12/14/1989 | WO1989012223A1 A method of imaging a random medium |
| 12/14/1989 | WO1989012222A1 Process and device for spectroscopic quantitative determination of gases in gas mixtures |
| 12/14/1989 | WO1989011917A1 Dusting apparatus |
| 12/14/1989 | WO1989007757A3 Fluorimeters |
| 12/13/1989 | EP0346082A1 Method and apparatus for low pressure liquid chromatography |
| 12/13/1989 | EP0346016A2 Biological sensors |
| 12/13/1989 | EP0345966A2 Compositions containing chlorine dioxide and their preparation |
| 12/13/1989 | EP0345949A2 Sensing a narrow frequency band of radiation and examining objects or zones |
| 12/13/1989 | EP0345895A1 Method and device for the spectroscopical determination of quantities of gases in gaseous mixtures |
| 12/13/1989 | EP0345882A1 Heating and temperature-control device for biological sample containers |
| 12/13/1989 | EP0345786A2 System for detecting defective portions in data recording portions of optical recording medium |
| 12/13/1989 | EP0345781A2 Defined volume test device |
| 12/13/1989 | EP0345773A2 Microspectroscope |
| 12/13/1989 | EP0345460A2 Method and device employing covalently immobilized colored dyes |
| 12/13/1989 | EP0345320A1 A method to detect radiation and measure its angle of incidence and a detector arrangement to carry out the method. |
| 12/13/1989 | EP0345297A1 Aperture image beam splitter. |
| 12/13/1989 | EP0345293A1 Microscope. |
| 12/13/1989 | EP0345280A1 Process for the optical scanning of an object and device for the implementation of said process. |
| 12/13/1989 | EP0232369B1 Fiber optic probe for quantification of colorimetric reactions |
| 12/13/1989 | CN1037966A Method of and apparatus for sorting and/or confirming the identity of gems |
| 12/13/1989 | CN1037965A Arciform photosensor assembly |
| 12/12/1989 | US4887155 Method and arrangement for measuring and/or monitoring properties of yarns or ropes |
| 12/12/1989 | US4886975 Surface examining apparatus for detecting the presence of foreign particles on two or more surfaces |
| 12/12/1989 | US4886965 Method for calibrating variable wavelength liquid chromatography detectors |
| 12/12/1989 | US4886761 Polysilicon binding assay support and methods |
| 12/12/1989 | US4886760 Stable chemical compositions containing chromogenic materials, peroxides, and stabilizing chemicals |
| 12/12/1989 | US4886366 Reference corrected color sensor |
| 12/12/1989 | US4886360 Method and apparatus for particle analysis |
| 12/12/1989 | US4886359 Device for nebuilizing sample liquid for spectroscopical purposes |
| 12/12/1989 | US4886358 Organic vapor assay by Raman spectroscopy |
| 12/12/1989 | US4886357 Internal reflection element with insensitive edges |
| 12/12/1989 | US4886356 Detector cell for liquid chromatography |
| 12/12/1989 | US4886355 Combined gloss and color measuring instrument |
| 12/12/1989 | US4886354 Method and apparatus for measuring crystal formation |
| 12/12/1989 | US4886338 Regenerated cellulose matrix bonded to sensitive dye |
| 12/12/1989 | EP0313648A4 Process for nitrogen oxides reduction and minimization of the production of other pollutants. |
| 12/07/1989 | DE3916270A1 Analysis system |
| 12/07/1989 | DE3819183A1 Method for fault-detection in the case of running material webs |
| 12/07/1989 | DE3819182A1 Method for the point-wise generation of an image of a running material web |
| 12/07/1989 | DE3818888A1 Method and device for the detection of radiation absorptions of a substance |
| 12/07/1989 | DE3818614A1 Microcontainer |
| 12/07/1989 | DE3818588A1 Method and arrangement for distinguishing between different materials |
| 12/07/1989 | DE3817791A1 Device for the selective detection of a gas and/or the selective determination of gas concentration |
| 12/06/1989 | EP0345182A1 Process and apparatus for the fabrication of olefins and diolefins by steam cracking of hydrocarbons, controlled by a system comprising an infrared spectrophotometer |
| 12/06/1989 | EP0344950A2 Method for determining oil content of an underground formation |
| 12/06/1989 | EP0344807A2 Method for evaluating the permeability of a thin membrane |
| 12/06/1989 | EP0344783A2 Monochromator drift compensation |
| 12/06/1989 | EP0344782A2 Standardization of spectral lines |
| 12/06/1989 | EP0344694A2 Method of monitoring and controlling retention of chemicals in processed water/cellulose matrix |
| 12/06/1989 | EP0344645A2 Device for measuring reflection |
| 12/06/1989 | EP0344617A2 Method and apparatus for inspecting sidewalls of bottles |
| 12/06/1989 | EP0344576A2 Arrangement of probes |
| 12/06/1989 | EP0344461A2 Device for calibrating a non-dispersive infrared photometer |
| 12/06/1989 | EP0344313A1 Probe for measuring concentration of dissolved gas |
| 12/06/1989 | EP0344276A1 Methods and devices for conducting assays |
| 12/06/1989 | CN2048973U Optical interference measurer |
| 12/05/1989 | US4885709 Method and apparatus for sensing or determining one or more properties or the identity of a sample |
| 12/05/1989 | US4885473 Method and apparatus for detecting particles in a fluid using a scanning beam |
| 12/05/1989 | US4885469 Infrared gas analyzer |
| 12/05/1989 | US4885467 Shading elimination method |
| 12/05/1989 | US4885254 Fluorescene technique to monitor cure in polymers |
| 12/05/1989 | US4884891 Fibre-optic apparatus |
| 12/05/1989 | US4884887 Method for positioning a crystal ingot |
| 12/05/1989 | US4884886 Biological particle identification apparatus |
| 12/05/1989 | US4884434 Wear sensor |
| 12/05/1989 | CA1263599A1 Assay technique and equipment |
| 11/30/1989 | WO1989011645A1 Defect inspection apparatus |
| 11/30/1989 | WO1989011644A1 Process and apparatus for automatic determination of physical-chemical parameters of a batch of grains |
| 11/30/1989 | WO1989011643A1 Reducible indicators containing pyrogallol and use thereof |
| 11/30/1989 | WO1989011542A1 Non-instrument methods for detecting an analyte of interest using peroxide intermediates and light scattering crystals |
| 11/30/1989 | DE3916184A1 Gloss measuring device |
| 11/30/1989 | DE3914181A1 Technique for determining a singularity |
| 11/29/1989 | EP0343826A1 Biological sensors |
| 11/29/1989 | EP0343692A2 Test piece coloration comparative decision unit |
| 11/29/1989 | EP0343665A2 Variable optical axis type bottle inspecting apparatus |
| 11/29/1989 | EP0343664A2 Apparatus for detecting defects on bottle sidewalls |
| 11/29/1989 | EP0343448A2 Apparatus for feeding liquid to an atomizer for a spectrometer |
| 11/29/1989 | EP0343380A1 Method and agent to differentiate between and to determine leucocytes |
| 11/29/1989 | EP0343187A1 Dynamic light scattering apparatus. |