| 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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| 07/02/1991 | US5028800 Two-beam photometer using specific beam chopper arrangement |
| 07/02/1991 | US5028790 Apparatus for full-system zero check and window soiling measurement and correction for transmissometers |
| 07/02/1991 | US5028787 Non-invasive measurement of blood glucose |
| 07/02/1991 | US5028778 Surface analysis method and a device therefor |
| 07/02/1991 | US5028774 Method and apparatus for detecting and measuring the refractive index of an optical disc substrate |
| 07/02/1991 | US5028545 Biospecific multianalyte assay method |
| 07/02/1991 | US5028395 Active chemical sensor with optical fiber and its production process |
| 07/02/1991 | US5028139 Readhead for reflectance measurement of distant samples |
| 07/02/1991 | US5028138 Method of and apparatus for obtaining object data by machine vision form polarization information |
| 07/02/1991 | US5028135 Combined high spatial resolution and high total intensity selection optical train for laser spectroscopy |
| 07/02/1991 | US5028133 Process and device for analysis of nonconductive surfaces |
| 07/02/1991 | US5028132 Examination of surface structure |
| 07/02/1991 | US5027499 Diposition of wall; dissolving; thermoconductivity recording |
| 06/30/1991 | WO1991010140A2 Methods for modelling tertiary structures of biologically active ligands including agonists and antagonists thereto and novel synthetic antagonists based on angiotensin |
| 06/30/1991 | WO1991010122A1 Thin-film spectroscopic sensor |
| 06/30/1991 | CA2072588A1 Thin-film spectroscopic sensor |
| 06/30/1991 | CA2072363A1 Methods for modelling tertiary structures of biologically active ligands including agonists and antagonists thereto and novel synthetic antagonists based on angiotensin |
| 06/29/1991 | WO1991010133A1 Method and apparatus for measuring entrained air in concrete |
| 06/29/1991 | CA2047229A1 Method and apparatus for measuring entrained air in concrete |
| 06/27/1991 | WO1991009300A1 Improvements in and relating to light transfer systems and improved cell investigation techniques arising therefrom |
| 06/27/1991 | WO1991009299A1 Apparatus and method for use in determining the optical transmission factor or density of a translucent element |
| 06/27/1991 | WO1991009298A1 Method and device for obtaining metric characteristics of spectrochemical parameters of analysed materials |
| 06/27/1991 | WO1991006855A3 Single-use biosensor for detecting antigen/antibody bonds in whole blood for use as an anti-hiv confirmatory test with verbal result on a liquid crystal display |
| 06/27/1991 | DE3942325A1 Protective coating for analysis cell - esp. for gas analysis by non-dispersive IR spectroscopy |
| 06/26/1991 | EP0434644A2 Instrument for the two-channel measurement of the fluorescence of chlorophyll |
| 06/26/1991 | EP0434371A2 Image reader |
| 06/26/1991 | EP0433854A2 3-Aminopyrazolo heterocycles, their use for the determination of hydrogen peroxide, hydrogen peroxide forming systems, peroxidase, peroxidant active substances or electron rich aromatic compounds, corresponding determination process and agents |
| 06/26/1991 | EP0433666A2 Three-dimensional inspection apparatus for hollow bodies |
| 06/26/1991 | EP0433613A1 Microscopic spectrometer with Cassegrain objective |
| 06/26/1991 | EP0433553A1 Apparatus for measuring the eccentricity of a plastic coating surrounding a conductor |
| 06/26/1991 | EP0433385A1 Method and apparatus for the detection of a gas using photoacoustic spectroscopy. |
| 06/26/1991 | CN2079749U Semi-automatic testing device for liquid medicine |
| 06/26/1991 | CN1052553A Non-dispersive infrared gas analyser capable of simultaneous measuring multiple composition concentration in gaseous samples |
| 06/26/1991 | CN1052552A Method for balancing nondispersive infrared gas analyzer |
| 06/25/1991 | US5027295 Apparatus for inspecting packaged electronic device |
| 06/25/1991 | US5027113 Process for simultaneously checking the authenticity of information media and the authenticity of the information itself |
| 06/25/1991 | US5026999 Method of remotely measuring subsurface water temperatures by stimulated raman scattering using stimulated brillouin backscattering |
| 06/25/1991 | US5026993 Apparatus for monitoring settlement of a solid in a liquid, and a system incorporating same |
| 06/25/1991 | US5026992 Spectral ratioing technique for NDIR gas analysis using a differential temperature source |
| 06/25/1991 | US5026991 Gaseous species absorption monitor |
| 06/25/1991 | US5026983 Method and apparatus for examining food products by means of irradiation |
| 06/25/1991 | US5026652 Method and device for mercury analysis |
| 06/25/1991 | US5026159 Area-modulated luminescence (AML) |
| 06/25/1991 | US5026139 Fiber optic refractive index sensor using metal cladding |
| 06/25/1991 | CA1285331C Method and apparatus for the detection of surface blemishes |
| 06/25/1991 | CA1285330C Analyte detection by means of energy transfer |
| 06/25/1991 | CA1285245C Automatic sorting system for plastic pellets |
| 06/20/1991 | DE4040494A1 Object surface test arrangement - contains video camera processor object position detector and automatically displays video signal when defect detected |
| 06/20/1991 | DE4037495A1 Gas analysis by radiation attenuation |
| 06/20/1991 | CA2032349A1 Surface inspection apparatus for substances |
| 06/19/1991 | EP0433240A2 Optical transducer cell of high efficiency with application to optical sensors |
| 06/19/1991 | EP0433080A2 Apparatus for measuring the mix ratio of a composite liquid |
| 06/19/1991 | EP0433044A1 Infra-red absorption spectra recording, high pressure sample holder |
| 06/19/1991 | EP0433005A2 Automatic particle pattern judging method |
| 06/19/1991 | EP0432963A2 Method and apparatus for evaluating ion implant dosage levels in semiconductors |
| 06/19/1991 | EP0432656A2 Analytical apparatus |
| 06/19/1991 | CN2079295U Strirring type turbidimetric chlorine residue composite trough analysis |
| 06/19/1991 | CN1052376A Use of sparingly soluble salt of heteropoly acid for determination of analyte, corresponding method of determination as well as suitable agent therefor |
| 06/19/1991 | CN1052373A Process for pinpoint spectroscopic analysis of light diffracted or absorbed by substance placed in near field |
| 06/19/1991 | CA2032116A1 Non-invasive sensor |
| 06/18/1991 | US5025389 Method of analyzing reaction rate in chemical analysis |
| 06/18/1991 | US5025304 Buried metal layer insulated with metal oxides |
| 06/18/1991 | US5025169 Sensor in IC formation |
| 06/18/1991 | US5024530 Multichannel telecentric filtered imager |
| 06/18/1991 | US5024526 Measuring instrument for determining the scattering and absorption coefficient of the atmosphere |
| 06/18/1991 | US5024226 Epidural oxygen sensor |
| 06/18/1991 | CA1285044C Weather identification system |
| 06/18/1991 | CA1284947C Indirect colorimetric detection of an analyte in a sample using ratio of light signals |
| 06/18/1991 | CA1284932C Biological and analytical uses of phenalenone and benzphenalenone compounds |
| 06/18/1991 | CA1284875C Method for detecting dripping droplet |
| 06/15/1991 | CA2005622A1 Infrared absorption spectra recording, high pressure sample holder |
| 06/13/1991 | WO1991008472A1 Process and apparatus for simultaneous measurement of sulfur and non-sulfur containing compounds |
| 06/13/1991 | WO1991008466A1 Selective detection of vapors |
| 06/13/1991 | WO1991008465A1 High resolution scanner |
| 06/13/1991 | WO1991008461A1 Method of monitoring reagent delivery in a scanning spectrophotometer |
| 06/13/1991 | WO1991008459A1 Non-imaging laser particle counter |
| 06/13/1991 | WO1991008455A1 Multichannel optical monitoring system |
| 06/13/1991 | WO1991008284A1 Dielectrophoretic characterisation of microorganisms and other particles |
| 06/13/1991 | WO1991006845A3 Coplanarity inspection machine |
| 06/13/1991 | DE4039694A1 Device measuring deg. of blackening of filter papers |
| 06/13/1991 | DE4039518A1 Inspecting of balls, e.g. small ball bearings - using laser light scanning, image formation and evaluation of rotated bearings for automatic inspection and classification |
| 06/13/1991 | DE3940386A1 Film-like foil transmission measuring system - uses photodiode detectors whose outputs pass via controlled potentiometers and amplifiers to micro-controller |
| 06/12/1991 | EP0431481A1 Method of continuous determination of thinness of fibres in yarns and relative apparatus for application of the same |
| 06/12/1991 | EP0431456A1 Use of a heavily soluble salt of a heteropolyacid for the determination of an analyte a corresponding assay and means useful therefor |
| 06/12/1991 | EP0431406A1 Device for lightening a region of a bottle to be inspected |
| 06/12/1991 | EP0431368A2 System to reduce wave shift error in spectrophotometer caused by hot spots in the light source |
| 06/12/1991 | EP0431089A1 Fibre sample holder |
| 06/12/1991 | EP0431025A1 Smog monitor and method |
| 06/12/1991 | EP0264426B1 Self contained surface contamination sensor |
| 06/12/1991 | EP0232348B1 Homogeneous process for the luminescent determination and/or detection of an analyte in a medium susceptible of containing it |
| 06/12/1991 | CN1052192A Testing tube of hydrogen phosphide gas |
| 06/12/1991 | CN1052189A Testing tube of co2 gas |
| 06/12/1991 | CN1012841B Measuring head |
| 06/11/1991 | US5023921 Method and a device for processing electric signals coming from the analysis of the line of an image |
| 06/11/1991 | US5023916 Method for inspecting the leads of electrical components on surface mount printed circuit boards |
| 06/11/1991 | US5023804 Method and apparatus for comparing spectra |
| 06/11/1991 | US5023452 Method and apparatus for detecting trace contaminents |
| 06/11/1991 | US5023441 Method to measure the angle of incidence for radiation and a detector to carry out the method |
| 06/11/1991 | US5023053 Biological sensors |
| 06/11/1991 | US5022765 Nulling optical bridge for contactless measurement of changes in reflectivity and/or transmissivity |