| 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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| 12/25/1979 | US4180331 Method and apparatus for sampling and measuring a characteristic of flowing granular material |
| 12/25/1979 | US4180324 Method and apparatus for measuring deformation of a workpiece surface responsive to ultrasonic energy |
| 12/25/1979 | US4180009 Ion concentration testing apparatus |
| 12/25/1979 | CA1068587A Capillary flow method and apparatus for determination of cell osmotic fragility |
| 12/25/1979 | CA1068585A Test composition, device and method for detecting bilirubin |
| 12/25/1979 | CA1068508A Fluorescence spectrophotometer |
| 12/18/1979 | US4179217 Dynamic photoelasticimeter with rotating birefringent element |
| 12/18/1979 | US4178917 Method and system for non-invasive detection of zinc protoporphyrin in erythrocytes |
| 12/18/1979 | CA1068371A1 Circuit arrangements for controlling detector signals in surface inspection systems |
| 12/18/1979 | CA1068171A1 Moisture and rust detector for hydraulic control systems |
| 12/18/1979 | CA1068122A1 Generation of coherent rotational anti-stokes spectra |
| 12/13/1979 | WO1979001081A1 Test strips for analysing dissolved substances |
| 12/12/1979 | EP0006028A1 Vapor permeation time-temperature indicator device, method of manufacture and application thereof |
| 12/11/1979 | US4178512 Deepwater in-situ fluorometer |
| 12/11/1979 | US4178153 Method and apparatus for chemical spot test analysis |
| 12/11/1979 | US4178103 Light scattering photometer and sample handling system therefor |
| 12/11/1979 | US4178102 Process and apparatus for measuring the concentration of a molecule of selective spectrum in a sample substance |
| 12/11/1979 | US4177620 Method of forming a sterilizable package with tear-off indicators |
| 12/11/1979 | CA1067715A1 Apparatus for use in investigating specimens |
| 12/04/1979 | US4177381 Gas analyzer sample cell |
| 12/04/1979 | US4177318 Spectroscopy |
| 12/04/1979 | US4176964 Determination of extreme density values of a transported strip of photographic originals |
| 12/04/1979 | US4176963 Spectrometer |
| 12/04/1979 | US4176960 Spatial resolution enhancement in coaxial light scattering systems |
| 12/04/1979 | US4176959 High gain laser spectrometer |
| 12/04/1979 | US4176956 Sample tube mounting structure for flameless atomic absorption spectroscopy |
| 12/04/1979 | US4176954 Equipment for measuring the length of dielectric elements transmitting optical frequencies |
| 12/04/1979 | US4176951 Rotating birefringent ellipsometer and its application to photoelasticimetry |
| 12/04/1979 | CA1067599A1 Coherent scanning system for fabric inspection |
| 12/04/1979 | CA1067597A1 Smoke detector |
| 12/04/1979 | CA1067379A2 Method for the determination of fibrin split products and fibrinogen split products in blood serum |
| 12/04/1979 | CA1067310A1 Analysis of emulsions and suspensions by infra-red absorption methods |
| 11/27/1979 | US4175865 Smoke detector |
| 11/27/1979 | US4175864 Astigmatic illuminating system in an internal reflection spectometer |
| 11/27/1979 | US4175863 Graphite tube atomizer for flameless atomic absorption spectroscopy |
| 11/27/1979 | US4175859 Apparatus for automated classification of white blood cells |
| 11/27/1979 | US4175447 Apparatus for detecting crack length of a test piece in a fatigue test |
| 11/27/1979 | CA1066917A1 Constant temperature, multiple sample, rotary changer |
| 11/27/1979 | CA1066911A1 Process and apparatus to detect micro-organisms in a medium |
| 11/20/1979 | US4175233 Flow cell and method for continuously monitoring deposits on flow surfaces |
| 11/20/1979 | US4174952 Immunoassay by light scattering intensity anisotropy measurements |
| 11/13/1979 | US4174180 Ultramicroscopic spectrometer |
| 11/13/1979 | CA1066086A1 Photoelectric sensing head with wiping means |
| 11/13/1979 | CA1066085A1 Apparatus for textile color analysis using reflected light |
| 11/06/1979 | US4173441 Web inspection system and method therefor |
| 11/06/1979 | US4173416 Scanning heads for transparencies |
| 11/06/1979 | US4173415 Apparatus and process for rapidly characterizing and differentiating large organic cells |
| 11/06/1979 | CA1065567A1 Control of foam cell size by measuring reflected light |
| 11/01/1979 | WO1979000876A1 Automatic photomask inspection system and apparatus |
| 10/31/1979 | EP0004962A1 Glow discharge lamp for qualitative and quantitative spectral analysis |
| 10/30/1979 | US4172666 Inspection apparatus |
| 10/30/1979 | US4172524 Inspection system |
| 10/30/1979 | US4172428 Scavengeable fluid for a flow pipe optical window |
| 10/30/1979 | CA1065437A1 Device for objective checking for foreign bodies in optically transparent cylindrical containers filled with liquids |
| 10/30/1979 | CA1065436A1 Method and apparatus for video inspection of articles of manufacture |
| 10/30/1979 | CA1065157A1 Diffractometric refractometer |
| 10/30/1979 | CA1065156A1 Apparatus for detecting and measuring fluorescence emission |
| 10/23/1979 | US4171956 Laser immunoassay |
| 10/23/1979 | US4171918 Infrared moisture measuring apparatus |
| 10/23/1979 | US4171916 Apparatus and method for measuring the consistency of a pulp suspension |
| 10/23/1979 | US4171915 Laser interferometer probe |
| 10/23/1979 | US4171913 Spectrophotometer |
| 10/23/1979 | US4171912 Element analyzer exploiting a magneto-optic effect |
| 10/23/1979 | US4171910 Retroreflectance measurement system |
| 10/23/1979 | US4171909 Apparatus for measuring light intensities |
| 10/23/1979 | CA1064727A1 Base line correction in densitometry |
| 10/23/1979 | CA1064726A1 Apparatus and method for uranium determination |
| 10/17/1979 | EP0004729A2 Apparatus and method for recording high-speed repetitive optical phenomena |
| 10/17/1979 | EP0004615A1 Method and device for examining finely etched objects |
| 10/16/1979 | US4171481 Apparatus for inspecting bottles having elliptic light converging means |
| 10/16/1979 | US4171161 Testing opaque workpieces, particularly tiny or thin elongated objects such as pins, bolts, wires, or the like, for orientation, size and material integrity |
| 10/16/1979 | US4171158 Inspection system and method |
| 10/09/1979 | US4170736 Multi-photon photoionization trace vapor detector |
| 10/09/1979 | US4170419 Optical web inspection system |
| 10/09/1979 | US4170127 Calibrated oil burner filter paper |
| 10/09/1979 | CA1064139A1 Light scattering type smoke detector |
| 10/09/1979 | CA1064136A1 Stone detector |
| 10/09/1979 | CA1064134A1 Machine timing system |
| 10/09/1979 | CA1064133A1 Detector optics for use in fabric inspection |
| 10/09/1979 | CA1063829A1 Quantitative detection of sulfur compounds by flame photometry |
| 10/09/1979 | CA1063826A1 Test device and method for determining blood hemoglobin |
| 10/03/1979 | EP0004505A2 System for checking a pattern on a flat base |
| 10/02/1979 | US4169676 Method for determining the contents of metabolic products in the blood |
| 10/02/1979 | CA1063381A2 Method and apparatus for deriving oxygen association curves |
| 09/25/1979 | US4168910 Optical beam-switching chopper |
| 09/25/1979 | US4168907 Method for inspecting transparent rods |
| 09/25/1979 | US4168700 Determination of blood losses during endoscopic operations |
| 09/25/1979 | US4168641 Filter rod manufacture |
| 09/25/1979 | CA1063003A1 Method and apparatus for the automatic analysis of the concentration of an individual component of a fluid in a metal-depositing bath having several components |
| 09/18/1979 | US4168438 Light scattering type smoke detector |
| 09/18/1979 | US4168186 Method for control of the carburization of parts in a vacuum furnace |
| 09/18/1979 | CA1062815A1 Device for measuring local radiation absorption or emission in a body |
| 09/18/1979 | CA1062501A1 Method and apparatus for determining deficiencies in enzymatic reactions particularly clotting factor levels in blood plasma |
| 09/18/1979 | CA1062496A1 Measurement of relative proportions of immiscible liquids mixtures |
| 09/18/1979 | CA1062495A1 Reflection standard for fiber optic probe |
| 09/11/1979 | US4167665 Automatic calibration circuit for gas analyzers |
| 09/11/1979 | US4167337 Interferometric apparatus and process |
| 09/11/1979 | US4167334 Flame head for flame photometric detector used in gas chromatography |
| 09/11/1979 | US4167331 Multi-wavelength incremental absorbence oximeter |
| 09/11/1979 | CA1062036A1 Paper machine optical monitoring device and method |