| 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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| 09/03/1991 | US5045704 Method for determining absolute reflectance of a material in the ultraviolet range |
| 09/03/1991 | US5045703 Cold trapping apparatus for infrared transmission analysis including a method and substrate therefor |
| 09/03/1991 | US5045701 Infrared spectropolarimeter |
| 09/03/1991 | US5045688 Method and apparatus for inspection of bottle thread having a unitary image plane |
| 09/03/1991 | US5045683 Light absorption detector with light emitting and light receiving elements |
| 09/03/1991 | US5045476 Method and device for analyzing solid substances on mercury |
| 09/03/1991 | US5045282 Optical fiber sensing device for analysis |
| 09/03/1991 | US5045196 Apparatus for pre-concentration of a sample for spectroscopical reasons |
| 09/03/1991 | US5045149 Method and apparatus for end point detection |
| 09/03/1991 | US5044756 Real-time soil organic matter sensor |
| 09/03/1991 | US5044755 Probe for transmitting and receiving light from a sample |
| 09/03/1991 | US5044754 Apparatus and method for use in determining the optical transmission factor or density of a translucent element |
| 09/03/1991 | US5044747 Modular flow-through cell |
| 09/03/1991 | US5044723 Tapered fibre sensor |
| 09/03/1991 | US5044308 Device and method for fluorescence microscopic controlled formation of monomolecular layers of organic films |
| 09/03/1991 | CA2037398A1 Method for quantitatively measuring saturates, olefins and aromatics in a composition |
| 08/31/1991 | CA2011147A1 Method for treating for glycol contamination in oil |
| 08/29/1991 | DE4106042A1 Light absorption measuring system |
| 08/29/1991 | DE4105192A1 Polarimetric testing of surface properties and transparent material - by evaluating difference between reflected s and p polarised components |
| 08/29/1991 | DE4005245A1 Reflection fluorimeter with improved sensitivity S-N ratio |
| 08/29/1991 | DE4003983C1 Automated monitoring of space=shape data for mfg. semiconductors - compares image signals for defined illumination angle range with master signals, to determine defects |
| 08/29/1991 | CA2037172A1 Method for determining the quality properties of individual pieces of meat |
| 08/28/1991 | EP0443908A1 Method and optical system for measuring the air pressure through laser excitation, particularly in front of an airplane |
| 08/28/1991 | EP0443702A2 Measuring method for determining small light absorptions |
| 08/28/1991 | EP0443289A2 Apparatus for inspecting printed circuit boards |
| 08/28/1991 | EP0443209A2 Method for determination of chromatic dispersion in a single mode optical fiber |
| 08/28/1991 | EP0442930A1 Characterizing macromolecules interacting with at least two ligands on a sensor. |
| 08/28/1991 | EP0442922A1 Surface plasmon resonance sensor unit and its use in biosensor systems. |
| 08/28/1991 | EP0442872A1 Dual absorbent analyte detection |
| 08/28/1991 | EP0381694A4 Single molecule tracking |
| 08/28/1991 | EP0364583A4 Method and device for analyzing thrombocyte aggregation |
| 08/28/1991 | EP0335915A4 Solution loading analyzer |
| 08/28/1991 | EP0144409B1 Localization of cancerous tissue by monitoring infrared fluorescence emitted by intravenously injected porphyrin in tumor-specific markers excited by long wavelength light |
| 08/28/1991 | CN2083751U Power dust automatic testing alarm instrument |
| 08/28/1991 | CN1053988A Identification method for making a distinction of seeds between lucerne and sweet osmanthus |
| 08/27/1991 | WO1991013174A1 A method for the fluorescent detection of a dna sequence in real time |
| 08/27/1991 | US5043591 Portable particle analysers having plural detectors |
| 08/27/1991 | US5043585 Method and apparatus for measurement of the fluorescence relaxation period of a fluorescent substance |
| 08/27/1991 | US5043584 Photon-counting type streak camera device |
| 08/27/1991 | US5043570 High resolution microscoping system using convolution integration process |
| 08/27/1991 | US5043289 Method and device for assaying immunologically reactive substances of clinical interest |
| 08/27/1991 | US5043286 Method and sensor for measuring oxygen concentration |
| 08/27/1991 | US5043285 Measuring luminescence; fiber optics light guides |
| 08/27/1991 | US5043266 Ortho- and para-imidazolyl and benzimidazolyl substituted phenol as enhancers for diagnostic chemiluminescent assays |
| 08/27/1991 | US5043141 Injection systems for sample testing for luminometers |
| 08/27/1991 | US5042952 Method and apparatus for evaluating surface and subsurface and subsurface features in a semiconductor |
| 08/27/1991 | US5042951 High resolution ellipsometric apparatus |
| 08/27/1991 | US5042948 Industrial colorimeter having lamp aging compensation means |
| 08/27/1991 | US5042947 Scrap detector |
| 08/27/1991 | US5042946 Atomic absorption spectrophotometric method and apparatus |
| 08/27/1991 | US5042522 Airway adapter with backflush tube |
| 08/27/1991 | US5042341 Marking station for timber |
| 08/27/1991 | CA2076853A1 Method for the fluorescent detection of a dna sequence in real time |
| 08/27/1991 | CA2036999A1 Detection of contaminants in a liquid stream |
| 08/27/1991 | CA1288029C Fluorescent polymers |
| 08/23/1991 | WO1991013353A1 A solid-phase interferometric immunoassay system |
| 08/23/1991 | CA2076349A1 Solid-phase interferometric immunoassay system |
| 08/22/1991 | WO1991012626A1 Chemical sensors based on polymer swelling |
| 08/22/1991 | WO1991012517A1 Method of and device for judging brilliance of diamond |
| 08/22/1991 | WO1991012515A1 Multisource device for photometric analysis and associated chromogens |
| 08/22/1991 | WO1991012501A1 Light wave polarization determination using a hybrid system |
| 08/22/1991 | WO1991012489A1 Process and device for automatic monitoring of space-shape data in the manufacture of semiconductor components |
| 08/22/1991 | DE4104014A1 Determining absolute intracellular calcium ion concn. - by staining with calcium sensitive fluorescent dye then scanning fluorescence decay of complexed and free dye |
| 08/22/1991 | DE4104013A1 Solid body surface local heating detector - uses photo-thermal beam deflection and has strip light waveguide with end in region of thermal lens |
| 08/22/1991 | DE4004990A1 Analysis cuvette for comparison beam spectral analysis of liquids - consists of three plates, with apertures in central plate forming measurement and reference chambers |
| 08/22/1991 | DE4003931C1 Computerised hair analysis system - uses display screen to indicate variation in hair condition resulting from treatment |
| 08/21/1991 | EP0442295A2 Frequency domain fluorometry using coherent sampling |
| 08/21/1991 | EP0442276A1 Biomedical fiber optic probe with frequency domain signal processing |
| 08/21/1991 | EP0442205A2 Method for monitoring the effects of thermal and radiation exposure |
| 08/21/1991 | EP0442065A2 Instrument for observing jewels brilliance as diamond, and method of taking photographs with said instrument |
| 08/21/1991 | EP0442060A2 Luminescence sensing with ratiometric measurement |
| 08/21/1991 | EP0442025A1 Optical particle analyzing apparatus having two types of light sources |
| 08/21/1991 | EP0442011A1 Sensor, apparatus and method for non-invasive measurement of oxygen saturation |
| 08/21/1991 | EP0442009A1 Tubular graphite furnace with a sample carrier with positive location means for atomic absorbtion spectroscopy |
| 08/21/1991 | EP0441904A1 Multiport parallel flow particle sensor. |
| 08/21/1991 | EP0441898A1 Optical sensing apparatus and method. |
| 08/21/1991 | EP0441894A1 Electrochemiluminescent reaction utilizing amine-derived reductant |
| 08/21/1991 | EP0441875A1 Enhanced electrochemiluminescence. |
| 08/21/1991 | EP0441791A1 Portable hemoglobinometer. |
| 08/21/1991 | EP0407429A4 Fluid pollution monitor |
| 08/21/1991 | EP0226604B1 Optical sensor for selectively determining the presence of substances and the variation of the refraction index in the measured substances |
| 08/21/1991 | CA2010540A1 Position responsive apparatus |
| 08/20/1991 | US5041727 Spectrophotometer with near infrared radiation sensor having an improved sensitivity |
| 08/20/1991 | US5041726 Infrared holographic defect detector |
| 08/20/1991 | US5041723 Infrared ray detector with multiple optical filters |
| 08/20/1991 | US5041387 Determination of the acid-base status of blood |
| 08/20/1991 | US5040897 Process for visually detecting a color drift in a polychrome reproduction |
| 08/20/1991 | US5040895 Process for the simultaneous detection of several gases in a gaseous mixture, and equipment for using the process |
| 08/20/1991 | US5040894 Cuvette and linear drive mechanism therefor |
| 08/20/1991 | US5040889 Spectrometer with combined visible and ultraviolet sample illumination |
| 08/20/1991 | CA1287900C Optical sensor for the detection of ice formation and other chemical species |
| 08/15/1991 | WO1991012314A1 Phase sensitive differential polarimetry technique and apparatus |
| 08/14/1991 | EP0441142A2 Functioning method of an installation for manufacturing biaxially stretched plastic tubes |
| 08/14/1991 | EP0441056A1 Optical fuel composition sensor |
| 08/14/1991 | EP0440907A2 Method and apparatus for hair analysis |
| 08/14/1991 | EP0440815A1 Method of and device for measuring extremely small quantity of oxygen in gas |
| 08/14/1991 | EP0440705A1 Stage for the rapid and indexed analysis with a microscope of filters and others supports carrying multiple samples, and method for analyzing such sampls by using said stage. |
| 08/14/1991 | DE4004088A1 Investigating physical properties of thin films |
| 08/14/1991 | CN1053841A Device for inspecting region of hollow bodies |
| 08/13/1991 | US5040057 Multi-mode TDI/raster-scan television camera system |