| 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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| 03/12/1991 | WO1991003727A1 Method for analyzing agent gas |
| 03/12/1991 | US4999514 Turbidity meter with parameter selection and weighting |
| 03/12/1991 | US4999512 Optical powder impurity detector |
| 03/12/1991 | US4999511 Surface state inspecting device for inspecting the state of parallel first and second surfaces |
| 03/12/1991 | US4999510 Apparatus for detecting foreign particles on a surface of a reticle or pellicle |
| 03/12/1991 | US4999498 Remote sensing gas analyzer |
| 03/12/1991 | US4999306 Composition, apparatus and method for sensing ionic components |
| 03/12/1991 | US4999304 Analyzing blood and other body fluids |
| 03/12/1991 | US4999014 Method and apparatus for measuring thickness of thin films |
| 03/12/1991 | US4999013 Controllable interferometer |
| 03/12/1991 | US4998826 Agricultural infrared thermometer |
| 03/12/1991 | US4998824 System of fluid inspection and/or identification |
| 03/12/1991 | CA2069867A1 Method for analyzing gas |
| 03/12/1991 | CA2022558A1 Optical oxygen sensor |
| 03/12/1991 | CA2018568A1 Non-dispersive infrared gas analyzer system |
| 03/12/1991 | CA1281267C Colorimetric detection device |
| 03/12/1991 | CA1281219C Evanescent wave sensors |
| 03/12/1991 | CA1281204C Fluorometer |
| 03/07/1991 | WO1991002978A1 Immunoassay of glycosylated proteins employing antibody directed to reductively glycosylated n-terminal amino acids |
| 03/07/1991 | WO1990006503A3 Sensor for optical assay |
| 03/07/1991 | DE3929290A1 Interferometric sensor e.g. for measuring temp., press or density - uses optical interferometer as sensor element for unproved accuracy, sensitivity and range |
| 03/06/1991 | EP0415154A1 Method for inspecting objects from different viewing angles |
| 03/06/1991 | EP0415151A1 Procedure for the determination on concentration by means of optical emission-spectroscopy |
| 03/06/1991 | EP0414961A2 Apparatus for detecting extraneous matter in raw cotton |
| 03/06/1991 | EP0414889A1 Single beam ac interferometer |
| 03/06/1991 | EP0414829A1 A device for the simultaneous contactless testing of a plurality of points on a test sample and its application. |
| 03/06/1991 | EP0414783A1 Process and apparatus for automatic determination of physical-chemical parameters of a batch of grains |
| 03/06/1991 | EP0414710A1 A method of effecting nir-analyses of successive material samples, and a system for carrying out the method. |
| 03/06/1991 | EP0229790B1 Apparatus for measuring atomic spektra |
| 03/06/1991 | CN1049720A Polyimide plumbing for optics feeler search |
| 03/06/1991 | CN1011919B Minimum procedure system for determination of analysis |
| 03/05/1991 | US4998043 LED stabilizing light source device |
| 03/05/1991 | US4998018 Two-wavelength type respiratory gas concentration measuring apparatus |
| 03/05/1991 | US4998017 Method and arrangement for measuring the optical absorptions of gaseous mixtures |
| 03/05/1991 | US4997769 Method and an apparatus for determining blood components |
| 03/05/1991 | US4997768 Anti-foaming method for liquid dispensing |
| 03/05/1991 | US4997278 Biological sensors |
| 03/05/1991 | US4997273 Remote method of measuring subsurface water temperatures |
| 03/05/1991 | CA1281100C Apparatus for detecting condensable components in a gas stream |
| 03/03/1991 | CA2024152A1 Method of and an apparatus for testing large area panes for optical quality |
| 03/02/1991 | WO1991003726A1 Improved octane measuring process and device |
| 03/02/1991 | WO1991003204A1 Shutterless optically stabilized capnograph |
| 03/02/1991 | CA2064892A1 Shutterless optically stabilized capnograph |
| 03/01/1991 | CA2024092A1 Integrated temperature control/alignment system for high performance capillary electrophoretic apparatus |
| 02/28/1991 | DE4026150A1 Evaluation system for particle agglutination pattern |
| 02/28/1991 | DE4004627A1 Automatically testing polymeric material - focussing pulsating laser beam via revolving mirror on to successive points on moving material and analysing radiation spectrum produced |
| 02/28/1991 | DE3928081A1 Gas cloudiness detector for diesel engine exhaust - uses beam splitter-reflector combination and measuring chamber to ascertain soot content |
| 02/28/1991 | DE3927575A1 Ascertaining crystallographic orientation of semiconductor wafer - determining deflection of reflected light beam at both natural split planes in horizontal and vertical directions |
| 02/27/1991 | EP0414504A2 Densitometer for measuring developability |
| 02/27/1991 | EP0414446A2 Gas analysis |
| 02/27/1991 | EP0414237A2 An image processing equipment |
| 02/27/1991 | EP0414224A2 Method for measuring an immunologically active material and apparatus suitable for practising said method |
| 02/27/1991 | EP0414223A2 Method for measuring an immunologically active material and apparatus suitable for practising said method |
| 02/27/1991 | EP0414072A1 Low temperature infrared source |
| 02/27/1991 | EP0414000A2 Device and method for analyzing by atomic spectroscopy volatile samples |
| 02/27/1991 | EP0413962A1 Imaging screen for electrophoresis applications and apparatus for the visualisation of the image |
| 02/27/1991 | EP0413952A1 Interferometric analyzer |
| 02/27/1991 | EP0413943A1 Non-contact on-line determination of phosphate layer thickness and composition of a phosphate coated surface |
| 02/27/1991 | EP0413817A1 Substrate examining apparatus |
| 02/27/1991 | EP0413812A1 Particle size analysis utilizing polarization intensity differential scattering. |
| 02/27/1991 | EP0413761A1 A method and a system for handling sample materials, e.g. in mixing plants, for central analysis of the samples |
| 02/27/1991 | EP0036017B1 Apparatus for analysis |
| 02/26/1991 | WO1991002945A1 Method and instrument for nonlinear averaging compensated measurements |
| 02/26/1991 | US4996658 Self-calibrating glass container inspection machine |
| 02/26/1991 | US4996439 Signal device |
| 02/26/1991 | US4996431 Selective gas detecting apparatus |
| 02/26/1991 | US4996421 Method an system of geophysical exploration |
| 02/26/1991 | US4996160 Method and apparatus for quantitative measurement of ionic and organic contaminants remaining on cleaned surfaces |
| 02/26/1991 | US4995727 Compact diffusion light mixing box and colorimeter |
| 02/26/1991 | US4995725 Monochromator arrangement |
| 02/26/1991 | US4995723 Method and apparatus for optically coupling an element analysis system and a laser to liquid metal in a melting vessel |
| 02/26/1991 | US4995274 Locking pin and nut combination and method for visual inspection thereof |
| 02/26/1991 | US4995198 Method for making a reflectance calibration plate having a near-Lambertian surface |
| 02/26/1991 | CA2065018A1 Method and instrument for nonlinear averaging compensated measurements |
| 02/21/1991 | WO1991002241A1 Apparatus for measuring photochemical reaction |
| 02/21/1991 | WO1991002237A1 Photometer having a long lamp life, reduced warm-up period and resonant frequency mixing |
| 02/21/1991 | WO1991002236A1 Multiport parallel flow particle sensor |
| 02/21/1991 | WO1991002040A1 Cyclodextrin labels for nucleic acid and biochemical analysis |
| 02/21/1991 | DE4023649A1 Procedure and equipment for detection of dangerous gases - uses radiation source and detectors to provide raw data which is compared with reference values |
| 02/21/1991 | DE3926881A1 impulse-based spectral photometer for rapid cell changes - induced by light using polychromatic beam formed in photo-cable from multiple sources |
| 02/20/1991 | EP0413678A2 Method for the detection and determination of human serum albumin in biological fluids using fluorogenic cyanine dyes |
| 02/20/1991 | EP0413675A2 Method for producing synthetic N-linked glycoconjugates |
| 02/20/1991 | EP0413588A2 Epidural oxygen sensor |
| 02/20/1991 | EP0413522A2 Detection of opaque foreign articles from among transparent bodies |
| 02/20/1991 | EP0413499A2 Sensor element and method for making the same |
| 02/20/1991 | EP0413330A2 Method and apparatus for detecting photoacoustic signal |
| 02/20/1991 | EP0413114A2 Method for bonding an analyte-sensitive dye compound to an addition-cure silicone |
| 02/19/1991 | US4994396 Using luminescent dye with hexanuclear core of molybdenum or tungsten, measuring light intensity emitted |
| 02/19/1991 | US4993838 Dust monitor |
| 02/19/1991 | US4993832 Method and apparatus for detecting concentration gradients |
| 02/19/1991 | US4993271 Liquid in situ multiport monitoring system |
| 02/18/1991 | CA2023355A1 Epidural oxygen sensor |
| 02/17/1991 | CA2023339A1 Method for producing synthetic n-linked glycoconjugates |
| 02/17/1991 | CA2023325A1 Sensor element and method for making the same |
| 02/16/1991 | CA2019726A1 Method for bonding an analyte-sensitive dye compound to an addition-cure silicone |
| 02/14/1991 | DE3929549C1 Sensitive measurer for light dispersed on optical component - has time-window discriminator blocking detector |
| 02/14/1991 | DE3926349A1 Optical defect inspection arrangement for flat transparent material - passes light via mirror forming image of illumination pupil on camera lens of photoreceiver |
| 02/14/1991 | DE3926199A1 Fault detector for complex, relatively regular structures - uses shutter in Fourier plane of beam path of light microscope |
| 02/14/1991 | DE3926129A1 Pitch determn. for cholesteric liq. crystal - using laser beam for passing through wedge cell on detector array |
| 02/13/1991 | EP0412653A2 Vehicular moisture sensor and mounting apparatus therefor |