| 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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| 04/13/1993 | US5202570 Gas detection device |
| 04/13/1993 | US5202568 Determining the presence, position, and integrity of reinforcing mounting clips by utilizing photoelectric means |
| 04/13/1993 | US5202091 Using plurality of luminescence sources; high speed |
| 04/13/1993 | US5201576 Shadowless spherical illumination system for use in an article inspection system |
| 04/13/1993 | US5201220 Apparatus and method for detecting the presence of gas in a borehole flow stream |
| 04/13/1993 | CA1316011C Vertical beam spectrophotometer |
| 04/09/1993 | CA2080114A1 Optical transmittance apparatus for fluids |
| 04/08/1993 | DE4233231A1 Spectrometric microanalysis for investigation of minute organic particles - evaporating solvent from small quantity of solution, and evaluating infrared spectrum reflected by result |
| 04/08/1993 | DE4133128A1 Determining optical activity esp. of liq. medium - using optical fibres for stokes parameter determination which are optically contacted with the medium |
| 04/08/1993 | DE4133127A1 Determining optical activity of non-doubly refracting media - passing light through measurement paths of different lengths containing two polarising elements with relative polarisation angle dependent on desired measurement range |
| 04/07/1993 | EP0536059A2 Test kit and method for the determination of metal ion concentration in solution |
| 04/07/1993 | EP0535799A1 Reagent for coagulating blood |
| 04/07/1993 | EP0535700A2 Method and apparatus for comparing spectra |
| 04/07/1993 | EP0535624A2 Arrangement for supplying rinsing air to a device for testing exhaust gas |
| 04/07/1993 | EP0535618A1 Apparatus for separating fluids into their components |
| 04/07/1993 | EP0535611A1 High resolution observation apparatus with photon scanning tunneling microscope |
| 04/07/1993 | EP0535610A2 Printed matter inspection method |
| 04/07/1993 | EP0535480A1 Slides for use in the analysis of liquids |
| 04/07/1993 | EP0535252A1 Method of cleaning reflector mirror in optical dew point meter and an optical dew point meter equipped with a cleaning device. |
| 04/07/1993 | EP0535102A1 Gaseous fluid aspirator or pump. |
| 04/07/1993 | EP0534945A1 A METHOD OF PHOTOMETRIC -i(IN VITRO) DETERMINATION OF THE CONTENT OF AN ANALYTE IN A SAMPLE OF WHOLE BLOOD. |
| 04/07/1993 | EP0534941A1 Optical interface means |
| 04/07/1993 | EP0297098B1 An indicator sheet for an autoclave test pack |
| 04/07/1993 | CN2129412Y Detecting instrument for freshness of fish |
| 04/07/1993 | CN1070732A Scanning and receiving method of laser scanner |
| 04/06/1993 | USRE34214 Method and apparatus for microphotometering microscope specimens |
| 04/06/1993 | USRE34211 Air-fuel ratio detecting sensor |
| 04/06/1993 | US5200801 Inspection of container finish |
| 04/06/1993 | US5200633 Sensor material for measuring the partial pressure of gases or vapors; and gas sensors |
| 04/06/1993 | US5200629 Chemical conversion to reduce pollution; exhaust gases from internal combustion engines |
| 04/06/1993 | US5200628 Method for distinguishing particles in fluid and apparatus for the same including plural sensors and weighting |
| 04/06/1993 | US5200609 Radiant energy spectroscopy system with diamond internal reflection element |
| 04/06/1993 | US5200321 Microassay on a card |
| 04/06/1993 | CA1315651C Process and apparatus for the continuous calorimetric determination of the cyanide concentration in aqueous solutions |
| 04/06/1993 | CA1315565C2 Spectroscopy system for atomic vapor laser separation |
| 04/04/1993 | CA2079752A1 High resolution observation apparatus with photon scanning microscope |
| 04/01/1993 | WO1993006480A1 Hydrogen fluoride sensor |
| 04/01/1993 | WO1993006467A2 Glass inspection method and device |
| 04/01/1993 | WO1993006466A1 Method and device for detecting and counting defects in yarn |
| 04/01/1993 | WO1993006463A1 Optical sensor |
| 04/01/1993 | WO1993006460A1 An infrared attenuation measuring system |
| 04/01/1993 | WO1993006459A1 Dual-wavelength photometer and fiber optic sensor probe |
| 04/01/1993 | WO1993006458A1 Variable path length light transmission probe |
| 04/01/1993 | WO1993006457A1 Method and device for the quantitative and qualitative determination of hydrocarbon-containing soot particles suspended in gases |
| 04/01/1993 | WO1993006456A1 Method of photometric in vitro determination of the content of an analyte in a sample |
| 04/01/1993 | WO1993006451A1 Sample introduction system |
| 04/01/1993 | WO1993006446A1 Can-measuring densitometer |
| 04/01/1993 | WO1993006445A1 Spectral signal analyzer system |
| 04/01/1993 | WO1993006241A1 Gene probe biosensor method |
| 04/01/1993 | WO1993006073A1 High quality phenol rectification with energy recovery |
| 04/01/1993 | DE4222804A1 Automatic visual tester for electrical and electronic components - performs video scans of different surfaces with unequal intensities of illumination by annular and halogen lamps |
| 04/01/1993 | CA2116858A1 Spectral signal analyzer system |
| 04/01/1993 | CA2112105A1 Variable path length light transmission probe |
| 04/01/1993 | CA2101421A1 Optical sensor |
| 03/31/1993 | EP0534670A1 Fiber optic chemical sensor |
| 03/31/1993 | EP0534609A1 Apparatus for detecting abnormal condition of cuttable objective material for use in a cutting machine |
| 03/31/1993 | EP0534380A1 Agent and method for enhancing chemiluminescence |
| 03/31/1993 | EP0534166A2 Procedure and apparatus for the quantitative determination of optic active substances |
| 03/31/1993 | EP0534096A2 Method and device for examining impurities in containers |
| 03/31/1993 | EP0533829A1 Security of objects or documents. |
| 03/31/1993 | EP0533764A1 Antioxidant assay. |
| 03/31/1993 | EP0533678A1 Ellipsometric control of material growth |
| 03/31/1993 | EP0533655A1 A measuring cell for the spectrum analysis of flowing media, especially molten plastics |
| 03/31/1993 | EP0533653A1 Method for detecting the presence of contaminants in a reusable plastic food or beverage container |
| 03/31/1993 | EP0151613B1 Breath analyzer |
| 03/31/1993 | CN1070482A Absorbance analyzer and data processing method for chromatograph |
| 03/31/1993 | CN1070481A Determination method of all component contents of leucosin and medemycin |
| 03/31/1993 | CA2079262A1 Apparatus and method for measuring a bodily constituent |
| 03/31/1993 | CA2078648A1 Test kit and method for the determination of metal ion concentration in solution |
| 03/30/1993 | US5198878 Substrate machining verifier |
| 03/30/1993 | US5198875 Device designed to assess the brightness of a surface more particularly of the skin |
| 03/30/1993 | US5198871 Laser-induced-fluorescence inspection of jet fuels |
| 03/30/1993 | US5198870 Atomic line emission analyzer for hydrogen isotopes |
| 03/30/1993 | US5198869 Reference wafer for haze calibration |
| 03/30/1993 | US5198369 Sample measuring method using agglomeration reaction of microcarriers |
| 03/30/1993 | CA1315390C Inspection of container finish |
| 03/30/1993 | CA1315389C Macroview and microview video record of core |
| 03/30/1993 | CA1315250C Illuminator for the spectroscopic observation of minerals, gems, etc. |
| 03/30/1993 | CA1315125C Multi-part differential analyzing apparatus utilizing light scatter techniques |
| 03/30/1993 | CA1315124C Apparatus and method for measuring dark and bright reflectances of sheet material |
| 03/30/1993 | CA1315123C Color test meter |
| 03/30/1993 | CA1315122C Dual sample cell gas analyzer |
| 03/30/1993 | CA1315121C Method and apparatus for determining the flocculation threshold of a petroleum product |
| 03/25/1993 | WO1993006465A1 Sanitary sight indicator |
| 03/25/1993 | DE4131835A1 Surface fault detector e.g. for moving textiles during production - has raster line of illumination sources with similar receiver lines for reflected and transmitted light, and uses parallel processing technique |
| 03/25/1993 | DE4131664A1 Verfahren und vorrichtung zum erfassen von garnfehlern A method and apparatus for detecting yarn defects |
| 03/25/1993 | DE4130369A1 Medical imaging device for measuring blood and tissue changes - measures transmission or reflection of laser source in red to infrared region, with deflector producing fan-shaped beam, and position-resolving two-dimensional sensor |
| 03/24/1993 | EP0533651A2 Measurement arrangement and method for determining the properties of a sample |
| 03/24/1993 | EP0533595A1 Method and device for the non-destructive testing of long, cylindrical, metallic objects |
| 03/24/1993 | EP0533333A2 Optical photometry system |
| 03/24/1993 | EP0533306A2 Method and apparatus for recognizing meandering of web |
| 03/24/1993 | EP0533302A1 Sequencing near infrared and infrared fluorescence labeled DNA for detecting using laser diodes |
| 03/24/1993 | EP0533127A1 Topological map maker |
| 03/24/1993 | EP0533079A2 Apparatus for monitoring trash in a fiber sample |
| 03/24/1993 | EP0533043A1 Arrangement for photoelectrically monitoring the movement of webs or sheets, in particular paper webs in rotary printing machines |
| 03/24/1993 | EP0532927A2 Automated photomask inspection apparatus |
| 03/24/1993 | EP0532768A1 System for monitoring arc sensor protecting window |
| 03/24/1993 | EP0532591A1 Analytical rotors and methods for analysis of biological fluids |
| 03/24/1993 | EP0233294B1 Frame assembly of a photoelectric smoke sensor |
| 03/24/1993 | CN2128736Y Infrared spectrum sampling cell in situ |