| 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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| 01/23/1991 | EP0408745A1 Method and apparatus for inspecting heat-resistant multi-layered container made of synthetic resin |
| 01/23/1991 | EP0408722A1 A method for detecting optical phase changes during biosensor operation, biosensing apparatus and a biosensor adapted for use in the same |
| 01/23/1991 | EP0408637A1 Near-infrared analysis of tissue fat percentage. |
| 01/23/1991 | EP0408566A1 Process and circuit for a brake system with anti-lock and/or traction slip control. |
| 01/23/1991 | EP0389571A4 Differential refractometer |
| 01/23/1991 | EP0321487B1 Enhanced luminescent assay |
| 01/23/1991 | EP0146621B1 A method of determining the diagnostic significance of the content of a volume of biological sample containing particles |
| 01/22/1991 | US4987548 Analyzer of partial molecular structures |
| 01/22/1991 | US4987306 Color monitoring in liquid scintillation systems |
| 01/22/1991 | US4987195 Polyacrylamide gels and method for the preparation of polyacrylamide gels |
| 01/22/1991 | US4987083 Photometric analyzer and controller for beverages |
| 01/22/1991 | US4986665 Optical density detector |
| 01/22/1991 | US4986664 System and process for controlled removal of material to produce a desired surface contour |
| 01/22/1991 | US4986660 Stock consistency transmitter |
| 01/22/1991 | US4986658 Transient spectroscopic method and apparatus for in-process analysis of molten metal |
| 01/22/1991 | US4986656 Method of remotely measuring diffuse attenuation coefficient of sea water |
| 01/22/1991 | US4986655 Apparatus for measuring diffuse attenuation coefficient of sea water |
| 01/22/1991 | US4986654 Method and apparatus for contactless acquisition of data for the locally resolved determination of the density and temperature in a measurement volume |
| 01/22/1991 | US4986318 Filling valve for counterpressure filling of cans |
| 01/22/1991 | US4986285 Method and apparatus for ascertaining the density of wrapped tobacco fillers and the like |
| 01/22/1991 | US4986110 Method and apparatus for taking samples of and for analyzing hydrocarbons |
| 01/22/1991 | CA1279260C Homogeneous process for the detection and/or determination by luminescence of an analyte in a medium in which it may be present |
| 01/22/1991 | CA1279243C Aqueous compositions for visual inspection and cleaning of metallic surfaces |
| 01/22/1991 | CA1279203C Optical fiber spectro-colorimetry apparatus |
| 01/21/1991 | CA2021590A1 Active chemical sensor with optical fibre and its production process |
| 01/17/1991 | DE4021159A1 Measuring arrangement in atom absorption spectrometry - contains pulse lamp, echelle spectrometer, and CCD sensor |
| 01/17/1991 | DE3922430A1 Humidity monitor for fibre=optic cable section - uses optical fibre sharply increasing attenuation if dampness enters cable and connected to measurer and evaluator |
| 01/16/1991 | EP0408507A1 Method for the determination of the distances between the color coordinates of two halftone regions printed with a printing machine and method for monitoring or adjusting the color printing of a printing machine |
| 01/16/1991 | EP0408337A1 Sheet inspection method and apparatus |
| 01/16/1991 | EP0408270A2 Pipetter, pipette tube, sample analyzing apparatus including them and method of mixing and pipetting liquids |
| 01/16/1991 | EP0408182A2 Apparatus for use in analysing sample solutions |
| 01/16/1991 | EP0408181A2 An adaptor for holding a micropipette |
| 01/16/1991 | EP0408035A2 High resolution microscoping system using convolution integration process |
| 01/16/1991 | EP0407800A2 Analysis method for determining substances from biological fluids |
| 01/16/1991 | EP0407499A1 Method and apparatus for real time asbestos aerosol monitoring |
| 01/16/1991 | EP0407429A1 Fluid pollution monitor |
| 01/16/1991 | CN1048597A Precision determination of the strength of a dye |
| 01/15/1991 | US4985858 Method and apparatus for temperature determination |
| 01/15/1991 | US4985636 Medium detecting system with automatic compensation for sensor variations |
| 01/15/1991 | US4985631 Luminescence exposure apparatus |
| 01/15/1991 | US4985622 Method for determining the corrosion resistance of deep-drawable iron sheets for body parts of motor vehicles and apparatus for performing the method |
| 01/15/1991 | US4985205 Test carrier analysis system |
| 01/15/1991 | US4985174 Auramine o |
| 01/15/1991 | US4984895 Color comparison device having a bulged insertion groove for holding a test stick in a flexed condition |
| 01/15/1991 | US4984886 Surface inspection apparatus for objects |
| 01/14/1991 | CA2020912A1 High resolution microscoping system using convolution integration process |
| 01/11/1991 | WO1991000993A1 Measuring apparatus and method |
| 01/11/1991 | CA2018856A1 Diagnostic assay system |
| 01/10/1991 | WO1991000518A1 Fibre sample holder |
| 01/10/1991 | WO1991000511A1 Detecting or quantifying multiple analytes using labelling techniques |
| 01/10/1991 | WO1991000510A1 Fluorescence-based optical sensor for detection of lipid-soluble analytes |
| 01/10/1991 | DE3920843A1 Rapidly measuring water content of solid fuel e.g. lignite - by performing fluorescent analysis of mineral component in moist and dried specimen |
| 01/10/1991 | DE3920669A1 Optical scanning arrangement for rapidly moving material - contains laser, anamorphotic propagator, deflector, scanning lens and receiver arrangement |
| 01/10/1991 | DE3920470A1 Measuring concn. of gaseous components in gas mixt. - by measuring retained intensity of transmitted absorption=specific light from temp. regulated laser diode |
| 01/09/1991 | EP0407294A1 Process and device for obtaining a gradient index-polymer |
| 01/09/1991 | EP0407188A1 Detectable particles |
| 01/09/1991 | EP0407030A1 Method and apparatus for analysing solid samples |
| 01/09/1991 | EP0406968A1 Device for measuring light scattered by an information support |
| 01/09/1991 | EP0406399A1 Apparatus and method for transient thermal infrared emission spectrometry |
| 01/09/1991 | CN2069114U Determination apparatus for determining hemoglobin |
| 01/09/1991 | CN1048452A Laser microanalysis instrument |
| 01/08/1991 | US4984172 System for detecting and correcting defects in articles being processed, in particular wood panels with splits, knot-holes, etc. |
| 01/08/1991 | US4983844 Fast atomic line filter |
| 01/08/1991 | US4983827 Linescan apparatus for detecting salient pattern of a product |
| 01/08/1991 | US4983824 Variable gap |
| 01/08/1991 | US4983823 Method for determining incident angle in measurement of refractive index and thickness |
| 01/08/1991 | US4983822 Variable optical axis type bottle inspecting apparatus |
| 01/08/1991 | US4983526 Method of measuring and controlling ozone concentration |
| 01/08/1991 | US4983359 Flow cytometer; fluorescent tagged monoclonal antibody; immunological diagnosis |
| 01/08/1991 | US4983044 Quantitative analysis of biological materials and photogrtaphic film and apparatus therefor |
| 01/08/1991 | US4983041 Spatial interferogram |
| 01/08/1991 | US4983040 Light scattering and spectroscopic detector |
| 01/08/1991 | US4982601 Method for the visual display of the migration of bowling lane oil during play |
| 01/08/1991 | US4982600 Method of measuring the period of surface defects |
| 01/08/1991 | CA2019424A1 Analysis method for determining substances from biological fluids |
| 01/08/1991 | CA1278842C Thermal wave imaging apparatus |
| 01/08/1991 | CA1278702C Reflectance measuring apparatus for making contactless measurements |
| 01/08/1991 | CA1278700C Method of spectrographically measuring density of photographic negative color film |
| 01/03/1991 | DE4019882A1 Arrangement for detecting and measuring irregular workpieces - has three beam sources, detector element and signal computer |
| 01/03/1991 | DE3919881A1 Verfahren und vorrichtung zur bestimmung wenigstens einer in wasser geloesten oder dispergierten fluoreszierenden substanz Method and device for its intended at least in a water-dissolved or dispersed fluorescent substance |
| 01/02/1991 | EP0406030A2 Inspection apparatus and method for detecting flaws on a diffractive surface |
| 01/02/1991 | EP0405881A2 Inspection apparatus for tubular members |
| 01/02/1991 | EP0405841A2 Method and apparatus for gas analysis |
| 01/02/1991 | EP0405806A2 Method of and apparatus for inspecting surfaces for defects |
| 01/02/1991 | EP0405752A2 Sensing apparatus and method |
| 01/02/1991 | EP0405513A2 Device for photometrical analysis by remission of liquid samples |
| 01/02/1991 | EP0405490A2 Method of and apparatus for determining properties of material |
| 01/02/1991 | EP0405480A2 Method of and apparatus for detecting microorganisms |
| 01/02/1991 | EP0405162A2 Cellrotor |
| 01/02/1991 | EP0405141A2 Remote sensing gas analyzer |
| 01/02/1991 | EP0405098A1 Laser interferometer-refractometer |
| 01/02/1991 | EP0405057A1 Deuterated water test method |
| 01/02/1991 | EP0404901A1 Raman analysis apparatus. |
| 01/02/1991 | EP0404900A1 Improvements in or relating to optical biosensors |
| 01/02/1991 | EP0404794A1 Atomic absorption spectrometer. |
| 01/02/1991 | CN2068681U Photoelectric turbidity probe assaying transducer |
| 01/01/1991 | US4982105 Surface inspecting apparatus with strip width dividing means |
| 01/01/1991 | US4982104 Web drive control apparatus |
| 01/01/1991 | US4981805 Method of using chemical analysis slide |
| 01/01/1991 | US4981779 Apparatus for monitoring glucose |