| 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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| 04/30/1991 | US5011289 Method and an apparatus for checking an object for the presence of filling compound |
| 04/30/1991 | US5011286 Multisensor particle counter utilizing a single energy source |
| 04/30/1991 | US5011283 Flow cell support device |
| 04/30/1991 | US5011279 Fiber-optical sensor |
| 04/30/1991 | US5011243 Reflectance infrared microscope having high radiation throughput |
| 04/30/1991 | CA1283725C Sensor for gases or ions |
| 04/30/1991 | CA1283558C Method and apparatus for determining parameters of gaseous substances |
| 04/29/1991 | CA2028053A1 Analysis of drilling solids samples |
| 04/29/1991 | CA2027496A1 Method of quantitative analysis of drilling fluid products |
| 04/28/1991 | CA2028472A1 Method and apparatus for identifying gemstones, particularly diamonds |
| 04/25/1991 | DE4032817A1 Chromatographic analysis of catecholamine - in three stages of prepn. decontamination and fraction atom |
| 04/25/1991 | CA2023644A1 Device for the comparative analysis of organic samples |
| 04/24/1991 | EP0423903A2 Spectral modulation sensor having an optically resonant structure and optical measuring devices using the same |
| 04/24/1991 | EP0423794A2 Surface inspecting apparatus |
| 04/24/1991 | EP0423736A2 Multi-element simultaneous analysis atomic absorption spectroscopy photometer and multi-element simultaneous analytic method |
| 04/24/1991 | EP0423488A2 Measurement equipment and procedure for determination of the concentration of a component of a measuring gas before and after passing through a concentration-altering reactor |
| 04/24/1991 | EP0423367A1 Optical liquid sensor, its production method and car oil-and-battery checker using the same |
| 04/24/1991 | EP0423223A1 Method and apparatus for spectroscopic measurement of the concentration of a gaz. |
| 04/24/1991 | EP0423206A1 Analysis of cell modifying substances |
| 04/24/1991 | EP0290529B1 Monochromator arrangement |
| 04/24/1991 | CN1050930A Minimum procedure system for determination of analytes |
| 04/23/1991 | US5010294 Method for topically-resolved determination of the diffusion length of minority charge carriers in a semiconductor crystal body with the assistance of an electrolytic cell |
| 04/23/1991 | US5010253 Detection system for cathodoluminescence analysis |
| 04/23/1991 | US5010244 Method to detect radiation and measure its angle of incidence and a detector arrangement to carry out the method |
| 04/23/1991 | US5009507 Method of evaluating meconium content of amniotic fluid |
| 04/23/1991 | US5009503 Automated capillary scanning system |
| 04/23/1991 | US5009500 Remote method of measuring subsurface water temperatures |
| 04/23/1991 | US5009493 Mirror arrangement for a beam path in a multiple-reflection measuring cell |
| 04/23/1991 | US5009488 Filter accessory for an imaging microspectrofluorimeter |
| 04/23/1991 | US5009102 Method of monitoring solidification of a liquid composition |
| 04/23/1991 | US5009099 Background correction method for use in gas chromatography |
| 04/23/1991 | US5009064 Apparatus for measuring the particulate matter in the flue gas or exhaust gas from a combustion process |
| 04/18/1991 | WO1991005265A1 Treatment of carbohydrates |
| 04/18/1991 | WO1991005254A1 Photometric apparatus and method for measuring hemoglobin |
| 04/18/1991 | WO1991005252A1 Carbon dioxide monitor |
| 04/18/1991 | WO1991005242A1 Method of testing oils |
| 04/18/1991 | WO1991005241A1 Infrared emission detection |
| 04/18/1991 | WO1991005240A1 Infrared-based gas detector |
| 04/18/1991 | WO1991005239A1 Light receiving system of heterodyne detection and image forming device for light transmission image using said light receiving system |
| 04/18/1991 | WO1991005237A2 Single particle detector utilizing light extinction |
| 04/18/1991 | DE3933592A1 Spectral photometer - using specified source of radiation of light forced to luminescence by radioactive source of radiation |
| 04/18/1991 | DE3932685A1 Visual observation of thin molecular layers - of metabolism products on specimen body sing cuvette filled with liquid, and illumination via light conductor |
| 04/18/1991 | CA2067098A1 Method of testing oils |
| 04/17/1991 | EP0422845A2 System for inspecting bearing balls for defects |
| 04/17/1991 | EP0422780A2 Methods and apparatus for detecting impurities in semiconductors |
| 04/17/1991 | EP0422708A2 Devices for use in chemical test procedures |
| 04/17/1991 | EP0422646A2 Improvement in calibration |
| 04/17/1991 | EP0422540A2 Arrangement for the measurement of the proportion of asbestos dust in air |
| 04/17/1991 | EP0422448A2 Apparatus for measuring light absorbance or fluorescence in liquid samples |
| 04/17/1991 | EP0422442A2 Collimated light optrode |
| 04/17/1991 | EP0422252A1 Method for detecting a substance using chemiluminescence |
| 04/17/1991 | EP0316442A4 Near infrared measurement apparatus for organic materials |
| 04/17/1991 | EP0259386B1 Photometric analyser |
| 04/17/1991 | CN1050768A Apparatus for examining mouths of bottle and the like |
| 04/16/1991 | US5008851 Optical heterodyning system and method for rapid optical phase and amplitude measurements |
| 04/16/1991 | US5008743 Telecentric imaging system optical inspection machine using the same and method for correcting optical distortion produced thereby |
| 04/16/1991 | US5008558 System for detecting minute particles on or above a substrate |
| 04/16/1991 | US5008542 Method and system for automated measurement of whole-wafer etch pit density in GaAs |
| 04/16/1991 | US5008533 High speed fiber optic container inspection apparatus and method |
| 04/16/1991 | US5007741 Methods and apparatus for detecting impurities in semiconductors |
| 04/16/1991 | US5007740 Optical probe for fluid light transmission properties |
| 04/16/1991 | US5007733 Process and device for determining the cloud point of a diesel oil |
| 04/10/1991 | EP0421645A2 Apparatus for and method of optical inspection in a total internal reflection holographic imaging system |
| 04/10/1991 | EP0421595A2 Integrated temperature control/alignment system for a capillary electrophoretic apparatus |
| 04/10/1991 | EP0421304A1 Infrared ray detector |
| 04/10/1991 | EP0421291A1 Arrangement for spectroscopically measuring the concentrations of more components of a gaseous mixture |
| 04/10/1991 | EP0421175A1 Capillary tube for taking blood samples, process for its fabrication and apparatus for measuring the time of coagulation |
| 04/10/1991 | EP0421156A2 Method and apparatus for fluorescence measurements |
| 04/10/1991 | EP0421100A1 Procedure and equipment for recognizing dangerous conditions in a room |
| 04/10/1991 | EP0420960A1 Multianalyte test vehicle. |
| 04/10/1991 | EP0420944A1 Optical inspection of food products |
| 04/10/1991 | EP0362304A4 Chemical sensors employing catalytic antibodies |
| 04/10/1991 | EP0229815B1 A device for measuring the light scattering of biological cells in flow cytophotometers |
| 04/09/1991 | US5007096 Object inspection apparatus |
| 04/09/1991 | US5007071 Method of inspecting bonded wafers |
| 04/09/1991 | US5006722 Flaw annunciator with a controllable display means for an automatic inspection system |
| 04/09/1991 | US5006717 Method of evaluating a semiconductor device and an apparatus for performing the same |
| 04/09/1991 | US5006716 Method and system for directional, enhanced fluorescence from molecular layers |
| 04/09/1991 | US5006706 Analytical method and apparatus |
| 04/09/1991 | US5006314 Monitoring oxygen partial pressure of blood |
| 04/09/1991 | US5006231 Flocculant control system |
| 04/09/1991 | US5006110 Air-in-line detector infusion system |
| 04/09/1991 | US5005977 Polarimeter |
| 04/09/1991 | US5005976 Electrothermal atomization of a sample for spectroscopic purposes |
| 04/09/1991 | US5005975 Surface profile analyzer |
| 04/09/1991 | US5005972 Refractometer readout system |
| 04/09/1991 | US5005971 Method and apparatus for simplifying and improving consistency of color grading of gemstones |
| 04/09/1991 | US5005576 Silicon glue which allows diffusion of gases |
| 04/07/1991 | WO1991005217A1 Scanning sensor system including an interferometer |
| 04/07/1991 | CA2044155A1 Scanning sensor system including an interferometer |
| 04/05/1991 | WO1991005261A1 Assay method for biological target complexes on the surface of a biosensor |
| 04/05/1991 | CA2066643A1 Assay method for biological target complexes on the surface of a biosensor |
| 04/04/1991 | WO1991004507A1 Examination of objects of macromolecular size |
| 04/04/1991 | WO1991004491A1 Method and apparatus for detection of an analyte |
| 04/04/1991 | WO1991004489A1 A homogeneous interferometric immunoassay system |
| 04/04/1991 | WO1991004488A1 Method and means for detecting polyhydroxyl compounds |
| 04/04/1991 | WO1991004483A1 Apparatus for detection of an immobilized analyte |
| 04/04/1991 | WO1991004482A1 Luminometer |
| 04/04/1991 | WO1991004481A1 Process for determining very small quantities of herbicides based on triazine compounds |
| 04/04/1991 | WO1991004470A1 Spectrometer for performing measurements in a fluid stream |