| 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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| 02/13/1991 | EP0412410A2 Double-beam photometer |
| 02/13/1991 | EP0412168A1 Instrument for inspecting brilliance of jewels such as diamond and photographing of jewels therewith |
| 02/13/1991 | CN1049227A On-line detecting system for petroleum prospecting gas composition |
| 02/13/1991 | CN1011620B Full-automatic turbidimeter |
| 02/12/1991 | WO1991002239A1 Polyimide waveguides as optical sensors |
| 02/12/1991 | US4992963 For dividing light |
| 02/12/1991 | US4992385 Solvent casting |
| 02/12/1991 | US4991971 Fiber optic scatterometer for measuring optical surface roughness |
| 02/12/1991 | US4991970 Method for optimizing contrast in an image of a sample |
| 02/12/1991 | US4991960 Atomic absorption spectrometer |
| 02/12/1991 | US4991958 Micropipette adaptor for spectrophotometers |
| 02/12/1991 | US4991610 Rinsing liquid apparatus for analytical instruments |
| 02/12/1991 | CA2064831A1 Polyimide waveguides as optical sensors |
| 02/12/1991 | CA2023072A1 Polyimide waveguides as optical sensors |
| 02/07/1991 | WO1991001492A1 Method of detecting a substance using enzymatically-induced decomposition of dioxetanes |
| 02/07/1991 | WO1991001491A1 Optical and pyrolyzate analyzer apparatus and method |
| 02/07/1991 | WO1991001490A1 Analytical assay method |
| 02/07/1991 | WO1991001489A1 Optical devices |
| 02/07/1991 | WO1991001488A1 Measurement of solid particle concentration in presence of a second particle type |
| 02/07/1991 | WO1991001487A1 Process and device for element determinations |
| 02/07/1991 | WO1991001305A1 Modified bioluminescent proteins and their use |
| 02/07/1991 | DE3925911A1 Opto-electronic test system for PCB - has circuit detecting bores in conductor path pattern ascertained by image converter |
| 02/07/1991 | CA2064766A1 Modified bioluminescent proteins and their use |
| 02/06/1991 | EP0411907A2 Scattered total internal reflectance apparatus |
| 02/06/1991 | EP0411851A1 Rotary index apparatus |
| 02/06/1991 | EP0411781A2 Colour monitoring in liquid scintillation systems |
| 02/06/1991 | EP0411557A2 Photometric method and device for the analysis of samples treated with fluorescent reagents |
| 02/06/1991 | EP0411481A2 Atomic absorption spectroscopy photometer |
| 02/06/1991 | EP0411104A1 Improvements in diagnosis by means of fluorescent light emission from tissue. |
| 02/06/1991 | EP0411070A1 Spectromicroscope with photometer. |
| 02/06/1991 | EP0411068A1 Assayomate |
| 02/06/1991 | EP0411042A1 Apparatus for conducting a plurality of simultaneous measurements of electrochemiluminescent phenomena. |
| 02/06/1991 | EP0411038A1 Process for forming and using microdroplets. |
| 02/06/1991 | CN1011554B Ultraviolet scanning system for centrifuger |
| 02/05/1991 | US4991006 Apparatus using an everted hose for inspecting the interior of a lateral pipeline |
| 02/05/1991 | US4990794 Sensing-measuring device for continuous determination of cavitation in dynamic pumps |
| 02/05/1991 | US4990790 Method for discriminating authenticity of a bill using polarization and an apparatus therefor |
| 02/05/1991 | US4990784 Nonlinear averaging compensated measurements |
| 02/05/1991 | US4990781 Spectroscopically operating infrared hygrometer |
| 02/05/1991 | US4990780 Using halogenated tracers |
| 02/05/1991 | US4990773 Solvating, measuring emission fluorescence |
| 02/05/1991 | US4990740 Intra-microspray ICP torch |
| 02/05/1991 | US4990250 Reference flow liquid chromatography system with stable baseline |
| 02/05/1991 | US4990075 Reaction vessel for performing sequential analytical assays |
| 02/05/1991 | US4989985 Densitometer for measuring specular reflectivity |
| 02/05/1991 | US4989984 System for measuring optical characteristics of curved surfaces |
| 02/05/1991 | US4989983 Test sample color comparison device |
| 02/05/1991 | US4989977 For determining characteristics of cells flowing in a liquid stream |
| 02/05/1991 | US4989976 Device for supplying liquid to a nebulizer in a spectrometer |
| 02/05/1991 | US4989975 Atomic absorption spectrometer |
| 02/05/1991 | US4989974 Chromatographic, spectrographic scintillation measurements |
| 02/05/1991 | US4989973 Surface condition estimating apparatus |
| 02/05/1991 | US4989942 Collimated light optrode |
| 02/05/1991 | US4989932 Multiplexer for use with a device for optically analyzing a sample |
| 02/02/1991 | CA2022292A1 Scattered total internal reflectance apparatus |
| 02/01/1991 | WO1991002238A2 Biological assay cassette and method for making same |
| 01/31/1991 | DE3924932A1 Observation device for small objects e.g. rare stones - has concave mirror in holder vertically beneath transparent support for observed object |
| 01/31/1991 | DE3923983A1 Verfahren und vorrichtung zur bestimmung von elementen Method and apparatus for determining elements |
| 01/31/1991 | DE3923825A1 Testing presence of lubricant film between moving parts - by addn. of agents which absorb, emit or reflect radiation and measuring changes |
| 01/30/1991 | EP0410851A1 Fiberoptic active chemical sensor and fabrication method of the same |
| 01/30/1991 | EP0410737A2 Silicon crystal evaluation method and semiconductor device fabrication method using the same |
| 01/30/1991 | EP0410610A2 Continuous concentration monitoring by circular dichroism |
| 01/30/1991 | EP0410505A2 Optical fiber sensor based on the excitation of surface plasma |
| 01/30/1991 | EP0410404A2 Improvements to electroreflectance spectroscopy systems |
| 01/30/1991 | EP0409932A1 Apparatus and method for detecting defects in an optical fiber. |
| 01/30/1991 | EP0409898A1 System of fluid inspection and/or identification |
| 01/29/1991 | WO1991002254A1 A method and a system for quantitatively monitoring a chemical component dissolved in a liquid medium |
| 01/29/1991 | US4988887 Method of inspecting die for forming honeycomb structure |
| 01/29/1991 | US4988875 Near infrared polyethylene inspection system and method |
| 01/29/1991 | US4988871 Gas partial pressure sensor for vacuum chamber |
| 01/29/1991 | US4988863 Optical fiber refractometer launching light at a non-zero launch angle |
| 01/29/1991 | US4988630 Multiple beam laser instrument for measuring agglutination reactions |
| 01/29/1991 | US4988447 Pumping a solvent for chromatography, dividing into streams, injection, detection, signals |
| 01/29/1991 | US4988446 Quantitative analysis by chromatography of hydrocarbon oils, uv radiation |
| 01/29/1991 | US4988206 Methods are apparatus for monitoring the diffuse reflectivity of a surface |
| 01/29/1991 | US4988205 A method of measuring diffuse reflectance of radiation |
| 01/29/1991 | US4988204 Joint inspection apparatus |
| 01/29/1991 | US4988202 Solder joint inspection system and method |
| 01/29/1991 | US4988199 Method and apparatus for measuring the concentration of optically active substances |
| 01/29/1991 | US4988195 Optical system |
| 01/29/1991 | US4988194 Optical storage inspection unit calibration disk |
| 01/29/1991 | US4988155 In-line fiber optic probe interface |
| 01/29/1991 | CA2064037A1 Method and a system for quantitatively monitoring a chemical component dissolved in a liquid medium |
| 01/29/1991 | CA1279563C Analytical element and method for determination of total lactate dehydrogenase |
| 01/29/1991 | CA1279499C Hematocrit measuring apparatus |
| 01/28/1991 | WO1991002228A1 Apparatus and microbase for surface-enhanced raman spectroscopy system and method for producing same |
| 01/28/1991 | CA2063830A1 Apparatus and microbase for surface-enhanced raman spectroscopy system and method for producing same |
| 01/24/1991 | WO1991001006A1 Diagnostic assay system |
| 01/24/1991 | WO1991001005A1 Detectable particles |
| 01/24/1991 | WO1991000995A1 Optical read system and immunoassay method |
| 01/24/1991 | WO1991000994A1 Optical read head for immunoassay instrument |
| 01/23/1991 | EP0409765A2 Interferometric apparatus |
| 01/23/1991 | EP0409546A2 Apparatus for measuring the water content of a gas |
| 01/23/1991 | EP0409293A2 Optical coupling gel for flow cytometry apparatuses and the like |
| 01/23/1991 | EP0409271A2 Method and apparatus for determining a material's characteristics by photoreflectance using improved computer control |
| 01/23/1991 | EP0409270A2 Method for determining interface properties of semiconductor materials by photoreflectance |
| 01/23/1991 | EP0409061A2 Atomic absorption spectrometer for multielement analysis |
| 01/23/1991 | EP0409033A2 Optical fiber sensor arrangement for determining an analyte, in particular glucose |
| 01/23/1991 | EP0408872A2 Furnace for electrothermal atomization of samples for spectroscopic purposes |
| 01/23/1991 | EP0408748A1 Light emitting probe complex for measuring ph and method of ph measurement |