| 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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| 06/22/1989 | DE3741616A1 Test device |
| 06/21/1989 | EP0321265A2 Optoelectrical particle detection apparatus |
| 06/21/1989 | EP0320530A1 Photodiode array spectrometer |
| 06/21/1989 | CN2039844U 磷化氢气体检测仪 Phosphine gas detector |
| 06/21/1989 | CN2039843U Polari-microscopic image digital analysing device |
| 06/21/1989 | CN1033483A Plasma atomizer for atmospheric pressure allowable coupling of atomic absorption and emissive spectrum method |
| 06/20/1989 | US4841157 Optical backscatter turbidimeter sensor |
| 06/20/1989 | US4841156 Measurement of the thickness of thin films |
| 06/20/1989 | US4841150 Reflection technique for thermal mapping of semiconductors |
| 06/20/1989 | US4841145 Apparatus for preparing sample solution for infrared spectrophotometer and method of analyzing sample solution |
| 06/20/1989 | US4841144 Dust-proof tube having a cylindrical portion that seals photosensor and integrally formed frustrum portion |
| 06/20/1989 | US4841139 Method for testing components of transparent material for surface irregularities and occlusions |
| 06/20/1989 | US4840706 Calibrated infrared scanning gauge with two filters; high water content |
| 06/20/1989 | US4840485 Frequency domain cross-correlation fluorometry with phase-locked loop frequency synthesizers |
| 06/20/1989 | US4840484 Atomic absorption spectrophotometer with furnace at pressure equal or near light source pressure |
| 06/20/1989 | CA1256179A1 Device for detecting differences in color |
| 06/20/1989 | CA1256006A1 Procedure for the detection of allergen-containing housedust |
| 06/20/1989 | CA1255946A1 Blocker device for eliminating specular reflectance from a diffuse reflection spectrum |
| 06/20/1989 | CA1255924A2 Pre-testing method and apparatus for a weathering test |
| 06/20/1989 | CA1255921A1 Apparatus for measuring the cut-off wavelength of a single-mode optical fiber |
| 06/15/1989 | WO1989005468A1 Device for optically scanning the surface of an object |
| 06/15/1989 | WO1989005456A1 Methods and devices for conducting assays |
| 06/14/1989 | EP0320477A2 Method for reducing the susceptibility of a measuring instrument to interferences |
| 06/14/1989 | EP0320122A2 A method of position monitoring and apparatus therefor |
| 06/14/1989 | EP0320086A2 Visual analytical tracer and method for detection and quantitative analysis for water treatment chemicals |
| 06/14/1989 | EP0319922A2 Device for the optical evaluation of a test band presenting at least one test field |
| 06/14/1989 | EP0319887A2 Method and apparatus for analyzing fluids by multi-fluid modulation modes |
| 06/14/1989 | EP0319797A2 Method and apparatus for measuring defect density and defect distribution |
| 06/14/1989 | CN1033418A Method and apparatus for emission spectroscopic analysis of sample |
| 06/13/1989 | US4839529 Arrangement for in situ determination of quantity of turbid matter aerosol and/or dust in fluid which flows through a space |
| 06/13/1989 | US4839516 Method for quantitative analysis of core samples |
| 06/13/1989 | US4838698 Extinction type detector |
| 06/13/1989 | US4838697 Apparatus for rapid colorimetry on different samples |
| 06/13/1989 | US4838695 Apparatus for measuring reflectivity |
| 06/13/1989 | US4838692 Temperature-compensated apparatus and method for determining pulp stock consistency |
| 06/13/1989 | US4838688 High sensitivity chromatography detector |
| 06/13/1989 | US4838032 Optical signal power measurement method and apparatus |
| 06/13/1989 | CA1255785A1 Panoramic video surveillance device |
| 06/08/1989 | DE3840106A1 Messfuehler fuer ein tragbares analysegeraet Illegal probe for a portable analysegeraet |
| 06/08/1989 | DE3827457A1 Method and device for the relative quantitative determination of chromophores in surface layers |
| 06/07/1989 | EP0319277A1 Air-in-line detector for a medication infusion system |
| 06/07/1989 | EP0319180A2 Improved mechanism for glass container inspection apparatus |
| 06/07/1989 | EP0319160A1 Blood parameter monitoring apparatus and methods |
| 06/07/1989 | EP0319158A1 Blood constituent monitoring apparatus and methods with frequency division multiplexing |
| 06/07/1989 | EP0318900A2 Method and apparatus for emission spectroscopis analysis |
| 06/07/1989 | EP0318752A2 Device for analysing traces of gas |
| 06/07/1989 | EP0318559A1 Analysis of carbohydrates |
| 06/07/1989 | EP0318482A1 Microprocessor controlled titrator |
| 06/06/1989 | US4837603 Method of correcting azimuth angle of photometric ellipsometers |
| 06/06/1989 | US4837450 Apparatus for reading a film image with controllable illumination and threshold value |
| 06/06/1989 | US4837446 Apparatus and process for testing uniformity of pulp |
| 06/06/1989 | US4837438 Direct infrared measurement of homogenous mixtures |
| 06/06/1989 | US4837241 Lipophillically-substituted piperidine oxadiazolyl compounds and their use in stimulating cognitive functions |
| 06/06/1989 | US4837163 Simple blood test for diagnosing malignant hyperthermia |
| 06/06/1989 | US4837162 Non-fluorescing, non-reflective polyamide for use in diagnostic testing |
| 06/06/1989 | US4836689 Asymmetric purge air system for cleaning a lens |
| 06/06/1989 | US4836673 Wavelength accuracy test solution and method |
| 06/06/1989 | US4836039 Method and apparatus for introduction of a particulate sample for analysis |
| 06/06/1989 | CA1255214A1 Method of visualizing individual submicroscopic metal particles |
| 06/06/1989 | CA1255213A1 Assay for immobilized reporter groups |
| 06/06/1989 | CA1255200A1 Process for the medical analysis of a liquid specimen with dry reagents and device for the application of this process |
| 06/06/1989 | CA1255198A1 Viability test device |
| 06/01/1989 | WO1989004982A1 Modular fiber optic chemical sensor |
| 06/01/1989 | WO1989004973A1 A method to measure the angle of incidence for radiation and a detector to carry out the method |
| 06/01/1989 | WO1989004972A1 A method to detect radiation and measure its angle of incidence and a detector arrangement to carry out the method |
| 06/01/1989 | WO1989004957A1 Reflection plate for a biochemical measuring instrument |
| 06/01/1989 | WO1989004887A1 Device for the optical determination of periodicities in textile bands or webs |
| 06/01/1989 | DE3823572C1 Multiple cuvette arrangement for an analysis system |
| 05/31/1989 | EP0318255A2 Cuvette |
| 05/31/1989 | EP0318014A2 Reflection plate for a biochemical measuring instrument |
| 05/31/1989 | EP0317987A2 Reagent container for the analysis of fluid samples in the microliter domain |
| 05/31/1989 | EP0317697A2 Apparatus for measuring foreign components in flowing liquids |
| 05/31/1989 | EP0317638A1 Sorting system and method for glass sheets |
| 05/31/1989 | EP0229814B1 A flow chamber device for flow cytometers |
| 05/31/1989 | EP0156877B1 Multicomponent quantitative analytical method and apparatus |
| 05/30/1989 | US4835393 Method and apparatus for determining concentration |
| 05/30/1989 | US4835389 Internal reflection spectroscopy for deep container immersion |
| 05/30/1989 | US4835110 Method for enhancing analysis timing in kinetic nephelometry |
| 05/30/1989 | US4835106 Rotor for processing liquids using movable capillary tubes |
| 05/30/1989 | US4835103 Differential binding of membrane potential sensitive materials to lymphocytes |
| 05/30/1989 | US4834918 Process and reagent for increasing the quantum yield in chemiluminescent reactions |
| 05/30/1989 | US4834645 Method and apparatus for transport, introduction, atomization and excitation of emission spectrum for quantitative analysis of high temperature gas sample streams containing vapor and particulates without degradation of sample stream temperature |
| 05/30/1989 | US4834539 Spectroscopic ellipsometer |
| 05/30/1989 | US4834536 Electrical contacts for supplying heating current to an electrothermal atomizer |
| 05/30/1989 | US4834535 Method of measuring atomic spectra compensating for atomic absorption by frequency modulation and using the doppler effect |
| 05/30/1989 | US4834534 Flow cell |
| 05/30/1989 | US4834533 Measuring the refractive index of liquid |
| 05/30/1989 | US4834532 Devices and procedures for in vitro calibration of pulse oximetry monitors |
| 05/30/1989 | US4834497 Fiber optic fluid detector |
| 05/30/1989 | US4834496 Optical fiber sensors for chemical detection |
| 05/30/1989 | US4834234 Container for test strips |
| 05/30/1989 | US4834104 Method and apparatus for measuring specific gravity of a flowing liquid |
| 05/30/1989 | EP0264397A4 Systems for the direct analysis of solid samples by atomic emission spectroscopy. |
| 05/30/1989 | CA1255011A1 Linescan inspection system for circuit boards |
| 05/30/1989 | CA1254969A1 Plywood surface defect detecting head |
| 05/30/1989 | CA1254896A1 Fluorescent indicator dyes for calcium ions |
| 05/24/1989 | EP0317243A2 Method and test composition for determination of enzyme activity |
| 05/24/1989 | EP0317121A2 Spectroscopic method and apparatus for measuring sugar concentrations |
| 05/24/1989 | EP0317070A2 Digital colorimetric quantitative assay system |
| 05/24/1989 | EP0316961A2 Roll mark inspection apparatus |