| 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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| 03/20/1980 | WO1980000455A1 Colorimetric immunoassay employing a chromoprotein label |
| 03/18/1980 | US4194217 Method and apparatus for in-vivo spectroscopic analysis |
| 03/18/1980 | US4194127 Process and device for checking substrate wafers |
| 03/18/1980 | US4194118 Detector for use in infrared gas analyzer |
| 03/18/1980 | US4193981 Process for quantitative determination of CAPA antigen or antibody |
| 03/18/1980 | US4193963 Apparatus for the determination of chemical compounds by chemiluminescence with ozone |
| 03/18/1980 | US4193695 Spectrographic apparatus with chopper means located in the sample cell |
| 03/18/1980 | US4193694 Photosensitive color monitoring device and method of measurement of concentration of a colored component in a fluid |
| 03/18/1980 | US4193692 Method and apparatus for the optical measurement of the concentration of a particulate in a fluid |
| 03/18/1980 | CA1073698A1 Dual channel photo-optical clot detection apparatus |
| 03/11/1980 | US4192996 Measurement of oxygen by differential absorption of UV radiation |
| 03/11/1980 | US4192614 L/C detector cell assembly |
| 03/11/1980 | US4192611 Reflectivity compensating apparatus |
| 03/11/1980 | CA1073328A1 Fluorimetric demonstration and determination of a reduced coenzyme or derivative in an aqueous system |
| 03/06/1980 | WO1980000372A1 Apparatus for visually duplicating gemstones |
| 03/05/1980 | EP0008404A2 Photometer with interchangeable calibration scales |
| 03/05/1980 | EP0008353A1 Method of detection and classification of flaws on metallic surfaces |
| 03/04/1980 | US4191940 Method and apparatus for analyzing microscopic specimens and the like |
| 03/04/1980 | US4191475 Process and apparatus for analyzing a sample by emission spectrography |
| 03/04/1980 | US4191234 Cover for rotatable sample tray |
| 03/04/1980 | US4191048 Red-visible dye penetrant composition and method employing same |
| 03/04/1980 | CA1072774A1 Investigation of a specimen in a vial held in a rotatable turntable with temperature control |
| 03/04/1980 | CA1072772A1 Analysis of a sample using a conversion means and specific gas detectors |
| 03/04/1980 | CA1072770A1 Monitoring of contaminated fluid streams |
| 03/04/1980 | CA1072769A1 Method of detecting gaseous contaminants |
| 02/26/1980 | US4190368 Chemiluminescence |
| 02/26/1980 | US4190367 Device for establishing a condition at the surface of a subject |
| 02/26/1980 | US4190363 Device for measuring concentration of a gas |
| 02/26/1980 | CA1072428A2 Fluorometric technique for determining isoenzyme concentrations |
| 02/26/1980 | CA1072363A1 Method and apparatus for sampling and measuring a characteristic of flowing granular material |
| 02/21/1980 | WO1980000273A1 Sample introduction system for flameless emission spectroscopy |
| 02/20/1980 | EP0008168A2 Radiation assembly and method for assessing web parameters |
| 02/20/1980 | EP0008010A1 Method of detecting flaws on surfaces |
| 02/19/1980 | US4189335 Illuminating coated carpet surface with light and measuring intensity of light returned therefrom |
| 02/19/1980 | US4189236 Ellipsoid-conic radiation collector and method |
| 02/12/1980 | US4188534 Infrared gas analyzer |
| 02/12/1980 | US4188533 Window transmittance tester |
| 02/12/1980 | US4188126 Photometer with concave mirrors and field optics |
| 02/12/1980 | US4188124 Interferometric measuring system |
| 02/12/1980 | US4188123 Optically measuring the carrier concentration in a semiconductor |
| 02/12/1980 | US4188120 Radioiodine detector based on laser induced fluorescence |
| 02/12/1980 | US4188118 Manipulator for rotating and examining small spheres |
| 02/12/1980 | US4188117 Method and apparatus for detecting leaks in hollow fiber membrane modules |
| 02/12/1980 | US4188116 Abbe refractometer |
| 02/12/1980 | CA1071733A1 Optical inspection systems |
| 02/12/1980 | CA1071732A1 Method for automatic fabric inspection |
| 02/12/1980 | CA1071714A1 Thermoelectric temperature control apparatus |
| 02/12/1980 | CA1071579A1 End point control in plasma etching |
| 02/07/1980 | WO1980000190A1 Method of generating nitrogen for flameless emission spectroscopy |
| 02/07/1980 | WO1980000188A1 Photometer apparatus |
| 02/06/1980 | EP0007809A1 Apparatus for producing a simulated visual image of a selected gemstone |
| 02/06/1980 | EP0007492A1 Recipient for optical investigation of small quantities of liquids |
| 02/06/1980 | EP0007348A1 Identification of hazardous nature of unknown materials |
| 02/05/1980 | US4187075 Method of analyzing biological, liquid specimens for antigens or antibodies |
| 02/05/1980 | US4187025 Device for producing a light signal corresponding to the refractive index of a fluid |
| 02/05/1980 | US4186838 Measurement of optical properties |
| 02/05/1980 | CA1070975A1 Incubator and radiometric scanner |
| 01/29/1980 | US4186309 Web monitoring and control apparatus for web handling machinery |
| 01/29/1980 | US4186304 Extender for dye penetrant composition |
| 01/29/1980 | US4185921 Surface flaw detector |
| 01/29/1980 | US4185497 Adiabatic laser calorimeter |
| 01/29/1980 | CA1070748A1 Ozone absorbance controller |
| 01/29/1980 | CA1070513A1 Single beam infrared analyzer |
| 01/24/1980 | WO1980000100A1 Apparatus and method for luminescent determination of concentration of an analyte in a sample |
| 01/24/1980 | WO1980000098A1 Instrument for chemi-or bioluminescent analysis |
| 01/22/1980 | US4185298 Process and apparatus for the automatic inspection of patterns |
| 01/22/1980 | US4184848 Eliminating turbidity in serum undergoing photometric assay |
| 01/22/1980 | US4184770 Monitoring systems |
| 01/22/1980 | US4184768 Self-calibrating photoacoustic apparatus for measuring light intensity and light absorption |
| 01/15/1980 | US4184175 Method of and apparatus for optically detecting anomalous subsurface structure in translucent articles |
| 01/15/1980 | US4184127 Frequency stabilized laser |
| 01/15/1980 | US4184082 Linear flaw detector |
| 01/15/1980 | US4184074 Nondispersive infrared gas analysis device |
| 01/15/1980 | US4183666 Method of measuring light transmission losses of optical materials |
| 01/15/1980 | CA1069723A2 Method and apparatus for producing a suspension of biological cells on a substrate |
| 01/15/1980 | CA1069722A2 Diffractometric refractometer |
| 01/09/1980 | EP0006749A1 Method and apparatus for measuring gas, including standardisation |
| 01/09/1980 | EP0006648A1 Method and device for inspecting a moving sheet material for streaklike defects |
| 01/08/1980 | US4182575 Apparatus for inspecting flat glass |
| 01/08/1980 | US4182574 Arrangement for carrying out laser spectral analysis |
| 01/08/1980 | CA1069338A1 Cleaning system for a continuous sensing oil-in-water monitor |
| 01/01/1980 | US4181853 Antigens |
| 01/01/1980 | US4181699 Apparatus for detecting the presence of a specific substance in a gas stream |
| 01/01/1980 | US4181610 Light-emitting diodes |
| 01/01/1980 | US4181442 Apparatus for determining amino acids |
| 01/01/1980 | US4181441 Internal reflectance spectrometer |
| 01/01/1980 | US4181439 Smoke detector with a conical ring-shaped radiation region |
| 01/01/1980 | US4181438 Direct temperature control and measurement for furnace atomizers in atomic spectroscopy |
| 01/01/1980 | US4181437 Apparatus for examining the infrared spectrum of small quantities of materials in the vapor phase |
| 01/01/1980 | US4181434 Color compensation system for Abbe refractometer |
| 01/01/1980 | US4181433 Method for determining the refractive index profile of optical fibers and optical fiber preforms |
| 01/01/1980 | US4181398 Optical apparatus |
| 01/01/1980 | CA1068936A Temperature controlled rotary liquid storage apparatus |
| 01/01/1980 | CA1068930A Chemical analysis of ions incorporated in lattices using coherent excitation sources |
| 12/25/1979 | US4180831 Image analysis data extraction |
| 12/25/1979 | US4180739 Thermostatable flow cell for fluorescence measurements |
| 12/25/1979 | US4180734 Gas analyzer |
| 12/25/1979 | US4180733 Infrared ray gas analyzing apparatus |
| 12/25/1979 | US4180732 Nondispersive infrared gas analyzer |
| 12/25/1979 | US4180702 Photo electric light detection devices |