| 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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| 09/01/1982 | EP0059032A1 Measurement of dye concentration in the bloodstream | 
| 09/01/1982 | EP0058831A1 Atomic absorption spectrophotometer providing background correction using the Zeeman effect | 
| 09/01/1982 | EP0058801A1 Measuring apparatus using optical interference techniques | 
| 09/01/1982 | EP0058710A1 Method and apparatus for non-contact photo-thermic investigation of the superficial and internal structure of solid bodies. | 
| 08/31/1982 | US4347001 Automatic photomask inspection system and apparatus | 
| 08/31/1982 | US4346997 Positive pressure maintenance for sample presentation | 
| 08/31/1982 | US4346996 Standard reflective device | 
| 08/31/1982 | CA1130883A1 Scanning and detecting device | 
| 08/31/1982 | CA1130604A1 Oil-in-water method and detector | 
| 08/31/1982 | CA1130603A1 Optical method for remote determination of the geological nature of a homogeneous surface | 
| 08/25/1982 | EP0058576A1 Sensor arrangement for a washing machine | 
| 08/25/1982 | EP0058452A1 Method and device for detecting surface flaws of sectional irons and half products | 
| 08/24/1982 | US4346296 Non-dispersive infrared gas analyzer | 
| 08/24/1982 | US4345840 Method and apparatus for instantaneous band ratioing in a reflectance radiometer | 
| 08/24/1982 | US4345837 Enhanced fluorescent emission | 
| 08/24/1982 | US4345455 Dew point hygrometer with continuous balancing system | 
| 08/24/1982 | CA1130412A1 Chipped crown detector | 
| 08/24/1982 | CA1130410A2 Test method for evaluating faults on printed sheets and webs | 
| 08/24/1982 | CA1130107A1 Apparatus and method for luminescent determination of concentration of an analyte in a sample | 
| 08/18/1982 | EP0058028A2 Method and apparatus for detecting bounded regions of images, and method and apparatus for sorting articles and detecting flaws | 
| 08/18/1982 | EP0057809A2 Method for the determination of the intracellular pH value | 
| 08/18/1982 | EP0057718A1 Method and apparatus for photometric detection in fluids | 
| 08/17/1982 | US4345150 Method and apparatus for measuring the moisture content of paper | 
| 08/17/1982 | US4344709 Method and apparatus for photogoniometric analysis of surfaces | 
| 08/17/1982 | US4344574 Cross-flow nebulizer | 
| 08/17/1982 | US4344438 Optical sensor of plasma constituents | 
| 08/17/1982 | CA1129670A1 Fluorescent standard for scanning devices | 
| 08/11/1982 | EP0057667A2 Device for the measurement of the refraction index of a fluid | 
| 08/11/1982 | EP0057404A1 Device to determine the abrasion resistance of substances laminatedly applied to a conjugated support | 
| 08/10/1982 | US4344146 Video inspection system | 
| 08/10/1982 | US4343991 Sample detector | 
| 08/10/1982 | US4343552 Nephelometer | 
| 08/10/1982 | CA1129553A1 Apparatus for measuring the sebum secreted by the skin | 
| 08/10/1982 | CA1129317A1 Pentaerythritol in dry developers | 
| 08/05/1982 | WO1982002596A1 Photometric flow cell | 
| 08/05/1982 | WO1982002573A1 Methods and apparatus for well investigation and development | 
| 08/05/1982 | WO1982002470A1 Apparatus and method for determining the viability of seeds | 
| 08/04/1982 | EP0056821A1 Method of measurement and a cuvette | 
| 08/03/1982 | US4342919 Fiber optical measuring device | 
| 08/03/1982 | US4342515 Method of inspecting the surface of an object and apparatus therefor | 
| 08/03/1982 | CA1129034A1 Smoke detector | 
| 08/03/1982 | CA1128770A1 Vacuum ultraviolet plasma atomic emission spectroscopic apparatus and method | 
| 07/28/1982 | EP0056426A2 Device for the presentation of parameters of a sample | 
| 07/28/1982 | EP0056417A1 Set of cuvettes. | 
| 07/28/1982 | EP0056416A1 Method and apparatus for the measurement of the properties of an agglutination | 
| 07/28/1982 | EP0056415A1 Analyzer | 
| 07/28/1982 | EP0056414A1 Method and apparatus for the measurement of the properties of an agglutination | 
| 07/28/1982 | EP0056413A1 Method and apparatus for the measurement of the properties of an agglutination | 
| 07/27/1982 | US4341957 Rare earth chelates | 
| 07/27/1982 | US4341473 Measuring head in or for a densitometer | 
| 07/27/1982 | US4341471 Apparatus and method for measuring the distribution of radiant energy produced in particle investigating systems | 
| 07/27/1982 | US4341470 Atomic absorption spectroscopy | 
| 07/27/1982 | US4341469 Laser shadowgraph | 
| 07/27/1982 | CA1128481A1 Source lamp positioning apparatus | 
| 07/27/1982 | CA1128333A1 Determination of conjugated and unconjugated bilirubin | 
| 07/21/1982 | EP0056316A2 Apparatus for scanning a test element | 
| 07/21/1982 | EP0056239A1 Method of measuring Raman spectra and laser Raman spectrophotometry system | 
| 07/21/1982 | EP0056215A1 Method and apparatus for inspecting cast strips in a continuous casting machine | 
| 07/21/1982 | EP0056058A1 Method and equipment for the measurement of properties of a liquid. | 
| 07/20/1982 | CA1128195A1 Moving object inspection system | 
| 07/20/1982 | CA1128167A1 Optical system for the detection of flaws in bottles or the like | 
| 07/20/1982 | CA1127868A1 Process for assessing the quality of a printed product | 
| 07/20/1982 | CA1127867A1 Ellipsoid radiation collector and method | 
| 07/20/1982 | CA1127866A1 Shade determination | 
| 07/20/1982 | CA1127865A1 Method and device for analysis with color identification test paper | 
| 07/20/1982 | CA1127864A1 Process for measuring thickness of very thin moving films | 
| 07/14/1982 | EP0055914A2 Fluorescence polarization analyzer | 
| 07/14/1982 | EP0055756A1 Photometer. | 
| 07/13/1982 | US4339201 Temperature control system for an element analyzer | 
| 07/13/1982 | US4339044 Installation for inspecting and sorting printed sheets of paper | 
| 07/13/1982 | CA1127418A1 Apparatus and method for indicating the presence in a fluid of one or more predetermined substance | 
| 07/13/1982 | CA1127416A1 Nickel analysis device | 
| 07/08/1982 | WO1982002252A1 Method for the determination of antigens,antibodies and their complexes | 
| 07/07/1982 | EP0055296A1 Rotary light tester for inspecting empty cans | 
| 07/06/1982 | US4338358 Method of producing cuvettes for the flameless atomic absorption spectroscopy | 
| 07/06/1982 | US4338279 For medical diagnosis | 
| 07/06/1982 | US4338033 Densitometer | 
| 07/06/1982 | US4338032 Detection of faults in sheet and like materials | 
| 07/06/1982 | US4338028 Apparatus for inspecting translucent articles for faults | 
| 07/06/1982 | US4338024 Flow analyzer and system for analysis of fluids with particles | 
| 07/06/1982 | CA1127259A1 Method and device for inspecting a moving sheet material for streaklike defects | 
| 07/06/1982 | CA1127242A1 Method of detecting flaws on surfaces | 
| 07/06/1982 | CA1126977A1 Ellipsoid-conic radiation collector and method | 
| 06/30/1982 | EP0055204A1 Method and apparatus for the local determination of the reducing capacity of gases emitted at the upper-charge level of industrial furnaces | 
| 06/30/1982 | EP0055027A2 Apparatus for deriving an electrical signal from a radiation flash and instruments incorporating such apparatus | 
| 06/30/1982 | EP0054957A1 Method and apparatus for photometrically monitoring the concentration of both chlorine and chlorine dioxide | 
| 06/30/1982 | EP0054680A1 Smoke detector according to the radiation extinction principle | 
| 06/30/1982 | EP0054637A2 Image density test circuit for an electrophotographic copier | 
| 06/30/1982 | EP0054598A1 Method for the inspection and automatic sorting of objects with configurations of fixed dimensional tolerances, and device for carrying out the method | 
| 06/29/1982 | US4337396 Method for bitumen analysis and apparatus therefor | 
| 06/29/1982 | CA1126857A1 Defect inspection apparatus | 
| 06/29/1982 | CA1126856A1 Defect inspection system | 
| 06/29/1982 | CA1126855A1 Defect inspection system | 
| 06/29/1982 | CA1126854A1 Inspection apparatus for defects on patterns | 
| 06/29/1982 | CA1126853A1 Object inspection system | 
| 06/24/1982 | WO1982002091A1 Entraining vaporized sample in metastable gas | 
| 06/23/1982 | EP0054535A2 Device for the surveillance of a mill train or a water mill | 
| 06/23/1982 | EP0054429A1 A Technique for synchronisation of Raman scattered radiation | 
| 06/23/1982 | EP0054262A1 Method of and apparatus for the automatic simultaneous analysis of several samples | 
| 06/23/1982 | EP0054056A1 Instantaneous rate kinetic method for determining total protein in cerebrospinal fluid |