| 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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| 06/03/1980 | US4205913 Determination of the partial pressure and the concentration of a gas |
| 06/03/1980 | US4205550 Sample chamber for gas analyzer |
| 06/03/1980 | CA1078773A1 Odd-shaped container indexing starwheel |
| 06/03/1980 | CA1078641A1 Pulsed light colorimeter |
| 05/28/1980 | EP0011377A1 Photoelectric densitometer head |
| 05/28/1980 | EP0011376A1 Photoelectric densitometer system |
| 05/28/1980 | EP0011205A1 Photoelectric smoke detector |
| 05/27/1980 | US4204908 Method of identifying leaky components of a multi-component system |
| 05/27/1980 | US4204837 Method of rate immunonephelometric analysis |
| 05/27/1980 | US4204770 Graphite furnace bore temperature measurements in flameless atomic absorption spectroscopy |
| 05/27/1980 | US4204769 Cuvette for flameless atom absorption spectroscopy |
| 05/27/1980 | US4204768 Gas analysers of the selective radiation absorption type with a calibration cell |
| 05/27/1980 | US4204766 Method and apparatus for controlling toner concentration of a liquid developer |
| 05/27/1980 | CA1078488A1 Line scanning device for detecting defects in webs of material |
| 05/20/1980 | US4204117 Sample analyzer |
| 05/20/1980 | US4203673 Method and apparatus for optically inspecting cylindrical articles |
| 05/20/1980 | US4203672 Scanning beam displacement compensation control system |
| 05/20/1980 | US4203670 System and method of fluorescence polarimetry |
| 05/15/1980 | WO1980001016A1 Magneto-optical anisotropy detecting device |
| 05/15/1980 | WO1980001005A1 Photoacoustic or thermoacoustic microscopy |
| 05/14/1980 | EP0010791A1 Method and device for inspecting a moving sheet material for streaklike defects |
| 05/14/1980 | EP0010615A1 Method and reagent for determining ions, polar and/or lipophilic compounds in liquids |
| 05/14/1980 | EP0010577A1 Method for the reduction of the disturbance of photometric measurements by light scatter in a suspension to be measured and reagent for carrying out the method |
| 05/13/1980 | US4203100 Light decrease type smoke sensor |
| 05/13/1980 | US4202632 Process and apparatus for optical recording of motions and states in ultracentrifuges in multi-cell operation |
| 05/13/1980 | US4202631 Apparatus for detecting defects in patterns |
| 05/13/1980 | US4202628 Flameless atomizer |
| 05/13/1980 | US4202202 Method and apparatus for detecting deflect in liquid metal handling instruments |
| 05/13/1980 | CA1077298A1 Gas concentration measuring device |
| 05/13/1980 | CA1077258A1 Method for inspecting cathode-ray-tube window for objectionable cord |
| 05/06/1980 | US4201915 Pneumatic infrared radiation detector having a hermetically sealed chamber and a window |
| 05/06/1980 | US4201914 Electrical instrument to detect the presence of liquid and method of operating the same |
| 05/06/1980 | US4201548 Method for determining volatile substances in an aqueous solution and apparatus therefor |
| 05/06/1980 | US4201479 Device for measuring the reflection of a plane, specularly reflecting surface |
| 05/06/1980 | US4201478 Photometer with automatic test sample selection, scanning and analysis system |
| 05/06/1980 | US4201477 Suspended solids meter |
| 05/06/1980 | US4201474 Variable angle of incidence reflectometer with a continuous read out |
| 05/06/1980 | US4201471 Oil concentration detector |
| 05/06/1980 | US4201469 Aerosol deposition in furnace atomization |
| 05/06/1980 | US4201222 Method and apparatus for in vivo measurement of blood gas partial pressures, blood pressure and blood pulse |
| 05/06/1980 | CA1077125A1 Metastable argon stabilized arc devices for spectroscopic analysis |
| 05/06/1980 | CA1076829A1 Optical method and apparatus for determining stress relaxation |
| 05/01/1980 | WO1980000877A1 Improved method and apparatus for detecting clear air turbulences |
| 04/30/1980 | EP0010526A1 Method and apparatus for investigating haemocoagulation or aggregation of platelets |
| 04/30/1980 | EP0010160A1 Plaquette for the dosimetry of reactive gases |
| 04/29/1980 | US4200802 Parabolic cell analyzer |
| 04/29/1980 | US4200801 Portable spotter for fluorescent contaminants on surfaces |
| 04/29/1980 | US4200791 Gas analyzer and gas analyzing method |
| 04/29/1980 | US4200399 Resonant optoacoustic spectroscopy apparatus |
| 04/29/1980 | US4200398 Automatic visibility measuring system |
| 04/29/1980 | US4200397 Apparatus for distinguishing between predetermined ranges of angles at which light rays leave a surface |
| 04/29/1980 | US4200110 Fiber optic pH probe |
| 04/29/1980 | CA1076680A1 Method and apparatus for inspecting transparent containers |
| 04/29/1980 | CA1076679A1 Method and apparatus for testing a flat, reflecting surface for imperfections |
| 04/29/1980 | CA1076386A1 Nephelometer having means semiautomatically cancelling components from scattering by particles smaller or larger than those of interest |
| 04/22/1980 | US4199755 Optical smoke detector |
| 04/22/1980 | US4199686 Dark field illuminator and collector apparatus and method |
| 04/22/1980 | US4199683 Zero-stable nondispersive gas analyzer |
| 04/22/1980 | US4199261 Optical intensity meter |
| 04/22/1980 | US4199260 Apparatus and method for determining the concentration in a sample |
| 04/22/1980 | US4198849 Pyrometric temperature measurements in flameless atomic absorption spectroscopy |
| 04/17/1980 | WO1980000748A1 Gas analyzer and gaz analyzing method |
| 04/16/1980 | EP0010059A1 Method and device for measuring the colour of a liquid sample |
| 04/16/1980 | EP0009766A1 Apparatus for emission spectrochemical analysis |
| 04/15/1980 | US4198568 Apparatus and method for uranium determination |
| 04/15/1980 | US4198567 Method and apparatus for discrimination between scattered excitation radiation and low level fast decaying fluorescent radiation |
| 04/15/1980 | US4198484 Cuvette ampule for use with automatic analyzer apparatus |
| 04/15/1980 | US4198261 Method for end point detection during plasma etching |
| 04/15/1980 | US4198161 Low turbidity nephelometer |
| 04/15/1980 | US4198160 Apparatus for performing at least two measurements of characteristics in a particle suspension |
| 04/15/1980 | CA1075572A1 Device for indicating the ph value of water in aquariums |
| 04/15/1980 | CA1075487A1 Optical measurement of small articles |
| 04/08/1980 | US4197584 Optical inspection system for printing flaw detection |
| 04/08/1980 | US4197466 Gas compression infrared generator |
| 04/08/1980 | US4197459 Totally reflecting infrared radiation with low transmitting energy for use near explosives |
| 04/08/1980 | US4197458 Electro-optical apparatus for the detection of the presence of liquid |
| 04/08/1980 | US4197457 System for detecting foreign particles or voids in plastic material and method |
| 04/08/1980 | US4197088 Method for qualitative and quantitative determination of immunological reactions |
| 04/08/1980 | US4197013 Calibration of dust monitoring instruments |
| 04/08/1980 | US4197012 Process and apparatus for measuring discoloration |
| 04/08/1980 | US4197011 Defect detection and plotting system |
| 04/08/1980 | US4197009 Photoacoustic Raman spectroscopy |
| 04/08/1980 | US4196811 Method and apparatus for the inspection of buttons |
| 04/08/1980 | CA1075035A1 Oil in water detection |
| 04/08/1980 | CA1075033A1 Sodium light intensity monitor |
| 04/02/1980 | EP0009307A1 Method and apparatus for discriminating platelets from red blood cells in a blood sample |
| 04/01/1980 | US4195932 Absorption spectrophotometer |
| 04/01/1980 | US4195930 Optical Raman microprobe with laser |
| 04/01/1980 | US4195641 Spectroscopic analysis of chemical substances |
| 04/01/1980 | CA1074887A1 Method and apparatus for inspecting liquids in transparent containers |
| 04/01/1980 | CA1074756A1 Apparatus for inspecting flat glass |
| 03/25/1980 | US4195056 Vapor permeation time-temperature indicator |
| 03/25/1980 | US4194840 Sensor contact |
| 03/25/1980 | CA1074420A1 Baghouse leak detection method |
| 03/25/1980 | CA1074150A1 Temperature compensated optical measuring instruments |
| 03/25/1980 | CA1074149A1 High-sensitivity differential refractometer |
| 03/25/1980 | CA1074148A1 Infrared gas analysis of molecular species |
| 03/25/1980 | CA1074147A1 Determination of concentration of suspended substances |
| 03/25/1980 | CA1074146A1 Photoelectric analysis using luminous bacteria |
| 03/20/1980 | WO1980000494A1 Method for measuring the concentration by total reflection spectroscopy |