| 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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| 09/04/1990 | US4954713 Device for characterizing semiconductor samples by photoluminescence with high spatial resolution and at low temperature |
| 09/04/1990 | US4954435 Indirect colorimetric detection of an analyte in a sample using ratio of light signals |
| 09/04/1990 | US4954318 Optical sensor |
| 09/04/1990 | US4953983 Non-destructively measuring local carrier concentration and gap energy in a semiconductor |
| 09/04/1990 | US4953980 Particle identifying apparatus |
| 09/04/1990 | US4953979 Optical system for signal light detection in a flow particle analysis apparatus |
| 09/04/1990 | US4953978 Particle size analysis utilizing polarization intensity differential scattering |
| 09/04/1990 | US4953977 Electrothermal atomization furnace |
| 09/04/1990 | US4953976 Gas species monitor system |
| 09/04/1990 | US4953974 Optical measurement of thin films |
| 09/04/1990 | US4953390 Method and a device for measuring the air/fuel ratio of an internal combustion engine |
| 09/04/1990 | US4953265 Device for detecting neps in carded, textile fiber material |
| 09/04/1990 | CA1273694A1 Apparatus for inspecting sidewall of bottle |
| 09/04/1990 | CA1273634A1 Aniline derivatives and agents for the detection of redox systems comprising them |
| 09/04/1990 | CA1273552A1 Fluorescent stokes shift probes for polynucleotide hybridization assays |
| 09/04/1990 | CA1273466A1 Heat sealing method and apparatus |
| 08/30/1990 | DE3906215A1 Automatische klassifikation von pflaenzlingen Automatic classification of seedling |
| 08/29/1990 | EP0384649A2 Optical fibre mounting arrangements and methods |
| 08/29/1990 | EP0384504A1 Detection strip for detecting and identifying chemical air contaminants, and portable detection kit comprising said strips |
| 08/29/1990 | EP0384337A2 Method for concentration determination by means of atomic absorption spectrometry |
| 08/29/1990 | EP0384324A2 Cell for use in flow through type electrode |
| 08/29/1990 | EP0384298A2 Gas analyzer |
| 08/29/1990 | EP0383922A1 Method for measuring degree of freshness and measuring kit for the method |
| 08/29/1990 | EP0383912A1 Method and apparatus for optically measuring concentration of material |
| 08/29/1990 | EP0383829A1 Infrared emission detection |
| 08/29/1990 | CN2061283U Pocket type infrared oil detecting apparatus |
| 08/29/1990 | CN2061282U L z type tabletting mold for infrared spectrometer |
| 08/29/1990 | CN1044988A Simulation prodn of graded standard pattern plates for pollution degree of hydraulic oil |
| 08/28/1990 | US4953100 Apparatus for inspecting packaged electronic device |
| 08/28/1990 | US4952276 Determining the intensity of light emission |
| 08/28/1990 | US4952266 Method of assembling chemical analysis slide |
| 08/28/1990 | US4952063 Method and apparatus for evaluating surface and subsurface features in a semiconductor |
| 08/28/1990 | US4952062 Method and apparatus for detecting flaws in fabric |
| 08/28/1990 | US4952061 Method and apparatus for sensing or determining one or more properties or the identity of a sample |
| 08/28/1990 | US4952058 Method and apparatus for detecting abnormal patterns |
| 08/28/1990 | US4952056 Method of determining the autocollimation angle of a grating coupler |
| 08/28/1990 | US4952055 Differential refractometer |
| 08/28/1990 | US4952027 Device for measuring light absorption characteristics of a thin film spread on a liquid surface, including an optical device |
| 08/28/1990 | US4951825 Apparatus for classifying particulate material |
| 08/28/1990 | CA1273224A1 Panel surface flaw inspection |
| 08/28/1990 | CA1273223A1 Methods and apparatus for measuring the light absorbance of a fluid medium |
| 08/24/1990 | CA2010592A1 Detection strip for detecting and identifying chemical air contaminants, and portable detection kit comprising said strips |
| 08/23/1990 | WO1990009637A1 Method and means for parallel frequency acquisition in frequency domain fluorometry |
| 08/23/1990 | WO1990009602A1 Reservoir fiber optic chemical sensors |
| 08/23/1990 | WO1990009576A1 A method for detecting optical phase changes during biosensor operation, biosensing apparatus and a biosensor adapted for use in the same |
| 08/23/1990 | WO1990009575A1 Picosecond multi-harmonic fourier fluorometer |
| 08/23/1990 | WO1990009574A1 Internal reflectance apparatus and method using cylindrical elements |
| 08/23/1990 | WO1990009558A1 Method and apparatus for measuring registration between layers of a semiconductor wafer |
| 08/23/1990 | WO1990009454A1 Process and device for rapid testing of the effect of agents on micro-organisms |
| 08/23/1990 | WO1990005903A3 Coded cuvette for use in testing apparatus |
| 08/22/1990 | EP0383460A2 Apparatus for measuring particles in liquid |
| 08/22/1990 | EP0383322A2 Biochemical analysis apparatus,method for correcting the results of biochemical analyses, and correction value recording medium for the same |
| 08/22/1990 | EP0383244A1 Fiber optic scatterometer |
| 08/22/1990 | EP0383209A1 Automated strip reader densitometer |
| 08/22/1990 | EP0383072A2 Method and device for the measurement of the absorption of radiation through a medium |
| 08/22/1990 | EP0382908A2 Ir-spectrometric analysing procedure and means |
| 08/22/1990 | EP0382832A1 Method of assay fora ligand in a sample. |
| 08/22/1990 | EP0382743A1 Device for checking linear dimensions of parts. |
| 08/22/1990 | EP0382734A1 Photographic immunofluorescent assay. |
| 08/21/1990 | US4951287 Atomic vapor laser isotope separation process |
| 08/21/1990 | US4951223 Web material inspection system |
| 08/21/1990 | US4950911 Apparatus and method for inspecting sheet material |
| 08/21/1990 | US4950908 Flocculant control system |
| 08/21/1990 | US4950905 Colored toner optical developability sensor with improved sensing latitude |
| 08/21/1990 | US4950900 Heated infrared gas analyzer using a pyroelectric infrared sensor |
| 08/21/1990 | US4950898 Method of position monitoring and apparatus therefor |
| 08/21/1990 | US4950897 Thermal wave sub-surface defect imaging and tomography apparatus |
| 08/21/1990 | US4950613 Proteted chemiluminescent labels |
| 08/21/1990 | US4950610 Titrating apparatus and method |
| 08/21/1990 | US4950077 Photoelectric measuring apparatus for use in automatic analyzer |
| 08/21/1990 | US4950075 Method of detecting an object by use of laser light and laser radar |
| 08/21/1990 | US4950074 Method of determining the refractive index of a substance and apparatus thereof |
| 08/21/1990 | CA2010447A1 Optical fibre mounting arrangements and methods |
| 08/21/1990 | CA1273023A1 Hydrolyzable fluorescent substrates for phosphatases and analytical use thereof |
| 08/21/1990 | CA1272942A1 Process and device to dispence a predetermined amount of plasma from a blood specimen for analysis |
| 08/18/1990 | WO1990009577A1 Instrument for inspecting brilliance of jewels such as diamond and photographing of jewels therewith |
| 08/17/1990 | CA2009983A1 Reservoir fiber optic chemical sensors |
| 08/16/1990 | EP0382467A2 Apparatus and method for carrying out measurements on a bobbin of sheet material |
| 08/16/1990 | EP0382466A2 Methods and apparatus for optically determining the acceptability of products |
| 08/16/1990 | EP0382433A2 Detection of nucleic acid sequences using fluorescence polarisation |
| 08/16/1990 | EP0382426A2 Micro-preparative electrophoresis apparatus |
| 08/16/1990 | EP0382343A2 UV-visible monochronometer order subtraction technique |
| 08/16/1990 | EP0382207A2 Analytical element for whole blood |
| 08/16/1990 | EP0381948A1 Furnace for the electrothermal atomisation of samples in atomic absorption spectroscopy |
| 08/16/1990 | EP0381883A1 Optical examination apparatus |
| 08/16/1990 | EP0381694A1 Single molecule tracking. |
| 08/16/1990 | EP0262140B1 Method and apparatus for determining parameters of gaseous substances |
| 08/16/1990 | EP0229773B1 Method for the optoelectronic inspection of bottles |
| 08/16/1990 | EP0224571B1 Method and apparatus for determining oxygen saturation in vivo |
| 08/16/1990 | EP0223855B1 Interference polarization refractometer |
| 08/16/1990 | DE3937554A1 Fluessigkeitsueberwachungsanordnung mit einem mir-kristall Fluessigkeitsueberwachungsanordnung with a me-crystal |
| 08/16/1990 | DE3903778A1 Verfahren zur schnellen pruefung der wirksamkeit von agenzien auf mikroorganismen und vorrichtung zur durchfuehrung des verfahrens Method for rapidly testing the efficacy of agents on microorganisms and apparatus for performing the method |
| 08/16/1990 | CA2004771A1 Ir-spectrometric analysing procedure and means |
| 08/15/1990 | CN2060548U Recognizer for suspended sands in water |
| 08/15/1990 | CN1044710A Water-soluble display agent of fluorescence permeation test |
| 08/14/1990 | US4949400 Hand held glucose colorimeter device |
| 08/14/1990 | US4949284 Method of adjusting density measurement position |
| 08/14/1990 | US4949191 System for scanning an image on a moving surface |
| 08/14/1990 | US4949172 Dual-mode TDI/raster-scan television camera system |
| 08/14/1990 | US4949034 Method for contactless evaluation of characteristics of semiconductor wafers and devices |