| 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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| 11/14/1990 | EP0397468A2 Spectroscopic plasma torch for microwave induced plasmas |
| 11/14/1990 | EP0397467A1 Photodetector |
| 11/14/1990 | EP0397388A2 Method and apparatus for measuring thickness of thin films |
| 11/14/1990 | EP0397256A2 Analyser featuring a circular track of cartridges centered on an incubator and method of use |
| 11/14/1990 | EP0397255A2 Flexible pusher blade and housing |
| 11/14/1990 | EP0396843A2 Gas partial pressure sensor for vacuum chamber |
| 11/14/1990 | EP0345280B1 Process for the optical scanning of an object and device for the implementation of said process |
| 11/14/1990 | CN1046978A Essential amino acid determining instrument |
| 11/14/1990 | CN1010431B Non-destructive method for determining the extent of cure of a polymer |
| 11/14/1990 | CN1010427B Automatic stress gauge for glass |
| 11/13/1990 | US4970671 Bias drift compensation in near infrared quantitative analysis instruments |
| 11/13/1990 | US4970397 Method and apparatus for activating catalysts using electromagnetic radiation |
| 11/13/1990 | US4970396 Infrared spectra recording, high pressure sample holder |
| 11/13/1990 | US4970054 Optical fiber cables; wound healing |
| 11/13/1990 | US4969746 Component inspection apparatus and method |
| 11/13/1990 | US4969741 Measurement of solid particle concentration in presence of a second particle type |
| 11/13/1990 | CA1276079C Optical analytical instrument |
| 11/13/1990 | CA1276078C Distributed sensor and method using coherence multiplexing of fiber-optic interferometric sensors |
| 11/12/1990 | WO1990013818A1 Glycosylated haemoglobin assay |
| 11/09/1990 | CA2016274A1 Photodiode configurations for simultaneous background correction and specific wavelength detection |
| 11/09/1990 | CA2016273A1 Spectroscopic plasma torch for microwave induced plasmas |
| 11/09/1990 | CA2016272A1 Background correction method for use in gas chromatography |
| 11/08/1990 | DE3914882A1 Inspection of rough precious stones - in immersion liq. through hole in specified plastic foil |
| 11/08/1990 | DE3914797A1 Measuring dust developed by movement of bulk material - letting sample fall in measuring chamber and registering reductions in intensity of defined light beam |
| 11/08/1990 | DE3914666A1 Measuring optical loss of laser optical element(s) - introduced into light path from source with changes in Fabry-Perot resonator evaluated |
| 11/07/1990 | EP0396409A2 High resolution ellipsometric apparatus |
| 11/07/1990 | EP0396320A2 A method and apparatus for remotely and portably measuring a gas of interest |
| 11/07/1990 | EP0396319A1 An improved method and arrangement for measuring the optical absorptions of gaseous mixtures |
| 11/07/1990 | EP0396291A2 Apparatus and methods for optical emission spectroscopy |
| 11/07/1990 | EP0396163A2 Capillary flow cell |
| 11/07/1990 | EP0395932A2 Photoelectric apparatus for determining losses in flexible pipe filters |
| 11/07/1990 | EP0395833A1 Method and apparatus for checking documents |
| 11/07/1990 | EP0395798A2 Microwave resonant cavity |
| 11/07/1990 | EP0395649A1 Device for checking linear dimensions of parts |
| 11/07/1990 | EP0205561B1 Fluid drop detection system |
| 11/07/1990 | EP0176531B1 Procedure for measuring the content of oil in liquids |
| 11/06/1990 | USH836 Method for analysis of finishing agent applied to glass fiber substrate |
| 11/06/1990 | US4969199 Apparatus for inspecting the molded case of an IC device |
| 11/06/1990 | US4969115 Method and apparatus for identifying causes of repeatability problems in near infrared analytical instruments |
| 11/06/1990 | US4969037 Arrangement for illuminating and detecting parts in an image processing system |
| 11/06/1990 | US4968892 Fluorescent penetrant inspection sensor |
| 11/06/1990 | US4968887 Gaseous nitrogen detection using excited-state laser spectroscopy |
| 11/06/1990 | US4968632 Method and apparatus for rapid analysis of a sample medium |
| 11/06/1990 | US4968631 Method for detecting amines and aldehydes using lanthanide chelate fluorophores based on dihydropyridine condensation products |
| 11/06/1990 | US4968148 Single source multi-site photometric measurement system |
| 11/06/1990 | US4968144 Single beam AC interferometer |
| 11/06/1990 | US4968143 Portable spectrophotometer |
| 11/06/1990 | US4968142 Closed inductively coupled plasma cell |
| 11/06/1990 | US4968141 Electrothermal atomization furnace |
| 11/06/1990 | US4968140 Manual device for the determination or measurement of photometric data using a measuring head |
| 11/06/1990 | US4968137 Devices and procedures for in vitro testing of pulse oximetry monitors |
| 11/06/1990 | CA1276028C Substituted pyridine derivatives |
| 11/06/1990 | CA1275919C Luminescent substrate preparation and its use in specific binding assays |
| 11/03/1990 | CA2015920A1 Examination of the physical properties of thin films |
| 11/01/1990 | WO1990013019A1 Method of and apparatus for non-destructive composite laminate characterization |
| 11/01/1990 | WO1990013018A1 Optical liquid sensor, its production method and car oil-and-battery checker using the same |
| 11/01/1990 | WO1990013017A1 Analytical apparatus |
| 11/01/1990 | WO1990012890A1 Method for determination of glucose in whole blood and cuvette and photometer for carrying out said method |
| 11/01/1990 | CA2015148A1 Testing apparatus for an item in sheet form |
| 10/31/1990 | EP0395587A2 Method for controlling and optimizing industrial processes for manufacturing dyes |
| 10/31/1990 | EP0395300A2 Thin film diagnostic device |
| 10/31/1990 | EP0395222A2 Improvements relating to biosensors |
| 10/31/1990 | EP0394932A2 Photothermal inspection method, arrangement for its working out, and utilisation of the method |
| 10/31/1990 | EP0394909A1 Method for diffuse illumination of a measuring area in a test carrier analysing system |
| 10/31/1990 | EP0394870A1 Non-dispersive infrared gas analyzer |
| 10/31/1990 | EP0394348A1 Method and apparatus for optically evaluating unknown objects |
| 10/31/1990 | EP0148497B1 Device for guiding and collecting light in photometry or the like |
| 10/31/1990 | CN2064883U Relative brightness tester for phosphor |
| 10/31/1990 | CN1046605A Method for increasing sensitivity of luminescent assays |
| 10/31/1990 | CN1046604A Water hardness quickly measuring agent |
| 10/30/1990 | US4967095 Method and apparatus for detecting and sizing particles on surfaces |
| 10/30/1990 | US4967092 Apparatus for optically checking the inner profile of a tube or bore |
| 10/30/1990 | US4967069 Spherical photoelectric sensor |
| 10/30/1990 | US4966462 Series cell light extinction monitor |
| 10/30/1990 | US4966458 Optical system for a multidetector array spectrograph |
| 10/30/1990 | US4966457 Inspecting apparatus for determining presence and location of foreign particles on reticles or pellicles |
| 10/30/1990 | US4966455 Real time mottle measuring device and method |
| 10/30/1990 | CA1275588C Apparatus and process for object analysis by pertrubation of interference fringes |
| 10/30/1990 | CA1275581C Method of producing a fiber-optical reflection sensor and sensor so produced |
| 10/30/1990 | CA1275580C2 System for measuring the color of a material |
| 10/29/1990 | WO1990013665A1 High-sensitivity emission spectral analysis |
| 10/27/1990 | WO1990013016A1 Cuvette |
| 10/27/1990 | CA2014405A1 Biosensors |
| 10/26/1990 | CA2015415A1 Method and material for measurement of oxygen concentration |
| 10/25/1990 | DE4012685A1 Recording an electrophoretic picture - as two-dimensional picture information and as one-dimensional processing data |
| 10/25/1990 | DE3912968A1 Monitor for dia. of threads and wires - based on light reflected by object and converted to electrical signals |
| 10/25/1990 | DE3546681C2 Immunological reaction measurement - by scanned valves of scattered light from cell passed to FFT for average density spectrum |
| 10/24/1990 | EP0394041A2 Capillary flow device and reading instrument |
| 10/24/1990 | EP0393593A2 Method of monitoring cement kiln and the apparatus therefor |
| 10/24/1990 | EP0393591A2 Method and apparatus for determining refractive index distribution |
| 10/24/1990 | EP0393459A1 Method for preparing calibrations of milk products for determining the properties of a milk product and for processing a basic material |
| 10/24/1990 | EP0393291A1 Writing system and method for producing visible markings on a medium |
| 10/24/1990 | EP0393196A1 Molecular weight distribution measurement method, spectrophotodetector and molecular weight distribution measurement apparatus of polymers |
| 10/24/1990 | EP0318482A4 Microprocessor controlled titrator |
| 10/24/1990 | EP0217819B1 A method and a spectrometer for measuring absorbance difference spectra of radical reactions |
| 10/24/1990 | CN1046391A System of fluid inspection and/or identification |
| 10/23/1990 | US4965540 Microwave resonant cavity |
| 10/23/1990 | US4965454 Method and apparatus for detecting foreign particle |
| 10/23/1990 | US4965451 Method and apparatus for the contactless testing of the surface and inner structure of a solid workpiece |
| 10/23/1990 | US4965441 Method for the scanning confocal light-optical microscopic and indepth examination of an extended field and devices for implementing said method |