| 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) |
|---|
| 08/04/1981 | US4281933 Apparatus for sorting fruit according to color |
| 08/04/1981 | US4281932 Light absorptivity measuring device |
| 08/04/1981 | US4281929 Small diameter, deep bore optical inspection system |
| 08/04/1981 | US4281897 Photometric system including a time-division optical attenuator |
| 08/04/1981 | CA1106468A1 Method of and apparatus for monitoring the advance of discolouration along a detector tube |
| 08/04/1981 | CA1106204A1 Suspended solids meter |
| 07/29/1981 | EP0032852A2 System for processing and measuring signals delivered by each detector in a modulation spectrometer |
| 07/29/1981 | EP0032774A2 Optical reflection meter |
| 07/29/1981 | EP0032710A1 Method and device for analyzing the surface of flexible materials |
| 07/29/1981 | EP0032592A1 Method and apparatus for real time detection of faults in industrial objects |
| 07/28/1981 | US4281248 Nondispersive infrared gas analyzer |
| 07/28/1981 | US4281033 Nondestructive testing for flaws |
| 07/28/1981 | US4280815 Electrochemiluminescent immunoassay and apparatus therefor |
| 07/28/1981 | US4280625 Shade determination |
| 07/28/1981 | US4280624 Bottle inspection apparatus |
| 07/28/1981 | CA1106023A1 Web scanning apparatus |
| 07/28/1981 | CA1105769A1 Apparatus and method for monitoring the dampening and inking equilibrium in offset printing units |
| 07/22/1981 | EP0032190A2 Apparatus for measuring radiation emitted by a sample |
| 07/22/1981 | EP0032169A1 Signalling arrangement operating with electromagnetic radiation |
| 07/21/1981 | US4279862 Centrifugal photometric analyzer |
| 07/21/1981 | US4279514 Apparatus for the analysis of test tape |
| 07/21/1981 | US4279509 Zero volume flow cell |
| 07/21/1981 | US4279508 Method and apparatus for testing air filters and the like |
| 07/21/1981 | US4279506 Cuvette, absorptive well |
| 07/15/1981 | EP0032117A2 Monitoring apparatus for monitoring for holes or surface defects in webs |
| 07/15/1981 | EP0031842A1 Method for selective determination of conjugated or unconjugated bilirubin. |
| 07/14/1981 | US4278887 Fluid sample cell |
| 07/14/1981 | US4278508 Method of detecting a cathodic corrosion site on a metallized substrate |
| 07/14/1981 | US4278441 Flame sampling apparatus and method |
| 07/14/1981 | US4278440 Reagent and method for direct determination of chloride in serum |
| 07/14/1981 | US4278353 Optical inspection of gold surfaces |
| 07/08/1981 | EP0031350A1 A method and an apparatus for determining refracted light |
| 07/07/1981 | US4277803 Automatic product checking system |
| 07/07/1981 | US4277802 Defect inspection system |
| 07/07/1981 | US4277179 Resonant subcavity differential spectrophone |
| 07/07/1981 | US4277178 Web element concentration detection system |
| 07/07/1981 | US4277177 Apparatus to measure select properties of a moving sheet |
| 07/07/1981 | US4277175 Method and apparatus for inspecting printed wiring boards |
| 07/07/1981 | US4277168 Endoscope with means for detecting rotation of a distal examining end |
| 07/07/1981 | US4277131 Antifouling window assembly |
| 07/07/1981 | US4276780 Optoacoustic spectroscopy of thin layers |
| 07/07/1981 | CA1104370A1 Oil concentration detector |
| 07/07/1981 | CA1104369A1 Abbe refractometer |
| 07/01/1981 | EP0031096A1 Optical arrangement for a smoke detector using the light scattering principle |
| 06/30/1981 | US4276475 Novel photometric system |
| 06/30/1981 | US4276383 Clot lysing timer |
| 06/25/1981 | WO1981001765A1 Self-checking photoelectric smoke detector |
| 06/24/1981 | EP0030915A1 Casting streaks examination device for web material coated by casting |
| 06/24/1981 | EP0030610A1 Method and device for quantitative determination of optically active substances |
| 06/24/1981 | EP0030542A1 Method for monitoring optical fiber processing |
| 06/24/1981 | EP0030538A1 Device for measurement of particles in a flowing medium |
| 06/23/1981 | US4275414 Tube plug weld inspection apparatus |
| 06/23/1981 | US4275304 Short optical path detector |
| 06/23/1981 | US4275299 Method and apparatus for detecting a fluorescent area on a sheet of paper |
| 06/23/1981 | US4275031 A cuvette with reagent embedded in a clear polymer coating |
| 06/23/1981 | US4274885 Method for washing centrifugal analyzer test disks |
| 06/23/1981 | US4274748 Method and device for inspecting a moving sheet material for streaklike defects |
| 06/23/1981 | US4274747 Method and device for inspecting a moving sheet material for streaklike defects |
| 06/23/1981 | US4274745 Method and apparatus for detecting foreign matters in liquids |
| 06/23/1981 | US4274744 Direct reading digital colorimeter |
| 06/23/1981 | US4274317 Method of monitoring a continuously advancing string material |
| 06/23/1981 | CA1103779A1 Optical smoke detector |
| 06/23/1981 | CA1103631A1 Conditioning device for a liquid sample before its analysis |
| 06/17/1981 | EP0030520A1 Process and device for testing coated supporting-web material so as to determine the presence of pouring streaks |
| 06/17/1981 | EP0030405A1 Process for producing cuvettes for flameless atomic absorption spectroscopy |
| 06/16/1981 | US4273671 Fluorescent detection of flaws |
| 06/16/1981 | US4273450 Photoacoustic spectrometer with analysis-signal enhancement |
| 06/16/1981 | US4273449 Radiation measuring apparatus |
| 06/16/1981 | US4273443 Method and apparatus for measurement of reradiation in particle flow cell systems |
| 06/16/1981 | US4273421 Semiconductor lifetime measurement method |
| 06/16/1981 | US4273419 Light-scattering disc collector |
| 06/16/1981 | US4272868 Device for obtaining a control signal corresponding to the density of the fibre web lying on a fibre-carrying element of a card |
| 06/16/1981 | CA1103074A1 Holographic diffraction grating system for rapid scan spectral analysis |
| 06/16/1981 | CA1103054A1 Laser spectrochemical analysis |
| 06/16/1981 | CA1103050A1 Method for detecting toxic substances in liquid |
| 06/10/1981 | EP0030161A2 Method for determining chemical species |
| 06/10/1981 | EP0030148A1 Portable photometer |
| 06/09/1981 | US4272485 Indicators, vessels |
| 06/09/1981 | US4272484 Filling for optodes |
| 06/09/1981 | US4272249 Method of monitoring oxygen concentrations in gas streams |
| 06/09/1981 | US4272248 Nitric oxide interference free sulfur dioxide fluorescence analyzer |
| 06/09/1981 | US4272192 Holographic shearing interference contrast method and interferometer |
| 06/09/1981 | CA1102581A2 Photometric analyzer |
| 06/09/1981 | CA1102580A1 Instrument for measuring sizes and quantity of particles in fluid medium |
| 06/09/1981 | CA1102579A1 Method of measuring the amount of substance associated with a material in the presence of a contaminant |
| 06/03/1981 | EP0029690A1 Method and apparatus for linearization of a gas analyzer and valve manifold assembly for gas dosing |
| 06/03/1981 | EP0029662A1 Automated method for cell volume determination |
| 06/03/1981 | EP0029537A1 Monitoring entrained particulate matter in a gas stream |
| 06/02/1981 | US4271124 Non-dispersive infrared gas analyzer for testing gases containing water-vapor |
| 06/02/1981 | US4271123 Automated system for performing fluorescent immunoassays |
| 06/02/1981 | US4271121 Plaque for measuring the dose of reactive gases |
| 06/02/1981 | US4271100 Apparatus for producing an aerosol jet |
| 06/02/1981 | US4270919 Process for assessing the presence of oxidizing agents on of keratin fibers |
| 06/02/1981 | US4270864 Photoacoustic rotational raman spectroscopy |
| 06/02/1981 | US4270863 Method and apparatus for inspecting objects for defects |
| 06/02/1981 | CA1102219A1 Woven fastener stringer |
| 06/02/1981 | CA1102151A1 Optical gauge |
| 05/28/1981 | WO1981001472A1 Liquid flow photometer |
| 05/28/1981 | WO1981001467A1 Method and device for determining the concentration of a substance bound to particles carried by a flowing medium |
| 05/28/1981 | WO1981001464A1 Method and apparatus for obtaining derivatives of photometric signals |