Patents
Sitemap › G01 - Measuring; Testing › G01N - Investigating or analysing materials by determining their chemical or physical properties › G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
11/1984
11/21/1984EP0125606A1 Apparatus for detecting the reasonable condition of developer in a copying machine
11/21/1984EP0125560A2 Stoichiometric metal oxide electrode
11/21/1984EP0125460A2 Method and device for localising leaks in flat roofs
11/21/1984EP0125310A1 Electrophoresis using alternating transverse electric fields.
11/21/1984EP0125280A1 Devices for use in determining ionic analyte activity and methods of making same
11/20/1984US4484172 Humidity sensor, comprised of compound metal oxides with perovskite structure
11/20/1984US4484141 Device for isoelectric focusing
11/20/1984US4484135 Hematocrit measuring instrument
11/20/1984US4483885 Method and device for electrophoresis
11/20/1984US4483748 Automated membrane test cell apparatus and method for so using
11/20/1984US4483694 Oxygen gas permselective membrane
11/20/1984US4483629 Dynamic testing of electrical conductors
11/20/1984CA1178339A1 Method and apparatus for suppressing noise during nondestructive eddy current testing
11/14/1984EP0125116A2 Method and instrument for measuring moisture
11/14/1984EP0125069A1 Electrochemical element and device including the element
11/14/1984EP0125064A2 Method for detecting stress and defect in a metal piece
11/14/1984EP0124818A2 Electroanalytical method and sensor for hydrogen determination
11/14/1984EP0124565A1 Ceramic material
11/13/1984US4482967 Ionic conductivity detector
11/13/1984US4482882 Moisture sensor with valve metal composition electrodes
11/13/1984US4482865 Apparatus for the automatic inducement of a magnetic field in an elongated article under test
11/13/1984US4482864 Process and equipment for collecting magnetite-containing ore dust samples and determining the magnetite and phosphorous contents thereof
11/13/1984US4482581 Process for the production of a capacitive hygrometer
11/13/1984US4481813 Dew sensor
11/13/1984US4481804 Method and apparatus for calibration of sensors
11/13/1984CA1177976A1 Photoionizer
11/13/1984CA1177930A1 Combustible gas detection system
11/13/1984CA1177735A1 Method of polarographic analysis of lactic acid and lactate
11/08/1984WO1984004390A1 Apparatus and method for measuring the concentration of particles in a gas
11/08/1984WO1984004389A1 Apparatus and method for measuring the concentration of large particles in a gas
11/07/1984EP0124440A1 High luminosity mass spectrometer
11/07/1984EP0124042A2 Electromagnetic detector for metallic materials
11/07/1984EP0123943A1 Signal detecting method in autoradiography
11/07/1984EP0123942A1 Signal detecting method in autoradiography
11/07/1984EP0123720A1 An oxygen sensor
11/06/1984US4481616 Scanning capacitance microscope
11/06/1984US4481499 Gas detector
11/06/1984US4481471 Method and apparatus for the detection of anomalies in rotating members
11/06/1984US4481470 Measuring magnetic flux
11/06/1984US4481464 Apparatus for measuring time variant device impedance
11/06/1984US4481094 Stabilized polyacrylamide gels and system for SDS electrophoresis
11/06/1984CA1177537A1 Corrosion measurement with secondary temperature compensation
11/06/1984CA1177276A1 Thick film sensor for hydrogen and carbon monoxide
11/06/1984CA1177275A1 Blood constituent measuring device and method
10/1984
10/31/1984EP0123553A1 Process and apparatus for changing the energy of charged particles contained in a gaseous medium
10/31/1984EP0123552A1 Method and apparatus for the mass spectrometric analysis of solutions
10/31/1984EP0123385A1 Humidity-sensitive resistive element
10/31/1984EP0123261A2 Process for electrochemically separating ion mixtures
10/31/1984EP0123089A1 Method of determining the content of a fuel rod
10/31/1984EP0122952A1 Apparatus for measuring gas partial pressure in living body
10/31/1984EP0122945A1 Electronic relative humidity meter and/or teletransmitter
10/30/1984US4480225 Improved multi-directional eddy current inspection test apparatus for detecting flaws in metal articles
10/30/1984US4480187 Mass spectrometer
10/30/1984US4479868 Gas measuring probe
10/30/1984US4479867 Electrochemical system for measuring the partial oxygen pressure in a gaseous or liquid atmosphere
10/30/1984US4479866 Gas sensor with sensitive element enclosed in perforated hood
10/30/1984US4479865 Electrode assembly
10/30/1984US4479861 Method and apparatus for preparative gel electrophoresis
10/30/1984US4479852 Method for determination of concentration of organic additive in plating bath
10/30/1984CA1176829A1 Hemispherands in ion-selective compositions
10/25/1984WO1984004166A1 Method and device for detecting damage to buried object
10/25/1984EP0108782A4 Method and device for the genetic characterization and the qualitative sorting of vegetables, particularly cultivation vegetable varieties.
10/24/1984EP0122742A2 An agrose gel electrophoresis technique for the determination of amylase isoenzymes
10/24/1984EP0122511A2 Method and apparatus for measuring simultaneously concentrations of dissolved gas
10/24/1984EP0122487A2 Apparatus for testing the surfaces of metallic objects
10/24/1984EP0122420A2 Electrode arrangement for the electrochemical analysis of the electrolytic component of a liquid
10/24/1984EP0122271A1 Magnetic testing apparatus
10/23/1984US4479116 Capacitive type fuel level and impurity indicator
10/23/1984US4478704 For detecting carbon monoxide or hydrogen
10/23/1984US4478222 Electrochemical sensing apparatus with in situ calibration
10/23/1984US4478067 Gas composition sensor
10/23/1984CA1176486A1 Apparatus for monitoring the partial pressure of gases
10/17/1984EP0122009A2 Electrochemical detection system
10/17/1984EP0121936A2 Connection terminal assembly employable for ionic activity detector
10/17/1984EP0121905A1 Oxygen sensor
10/17/1984EP0121742A2 Device for the electrochemical analysis of electrolytic components in a test fluid
10/17/1984EP0121739A2 Method and apparatus for evaluating the performance of dielectric substances
10/17/1984EP0121544A1 Device for measuring the presence of electrical conducting liquid received therein
10/17/1984EP0121538A1 Manufacture of corrugated fibreboard.
10/16/1984US4477778 Hydrogen detector
10/16/1984US4477776 Apparatus and process for flux leakage testing using transverse and vectored magnetization
10/16/1984US4477541 Solid electrolyte structure
10/16/1984US4477487 Method of producing oxygen concentration cells
10/16/1984US4477484 Sensitized walls in a series resistance circuit
10/16/1984US4477403 Liquid electroylyte blended with fumed silica
10/16/1984US4477330 Electrochemical electrode device
10/16/1984US4477329 Apparatus for maintaining peroxide concentration
10/16/1984US4477314 Method for determining sugar concentration
10/16/1984CA1176345A1 Temperature control means for a humidity detector
10/16/1984CA1176145A1 Enzyme electrode membrane
10/10/1984EP0121084A2 Magnetic inspection device
10/09/1984US4476434 Non-destructive testing method and apparatus utilizing phase multiplication holography
10/09/1984US4476096 Circuit arrangement for an apparatus for measuring and indicating the concentration of combustible gases and vapors contained in air
10/09/1984US4476008 Oxygen concentration-sensing device and the method of producing the same
10/09/1984US4476007 Permselective membranes; quantitative analysis for biological cells and serums
10/09/1984US4476005 Quantitative analysis of ammonium ion
10/09/1984US4476004 Apparatus for electrofusion of biological particles
10/09/1984US4475390 Smoke detector
10/09/1984US4475378 Process for interrogation of a detector of the concentration of combustible gas and an implementing device
10/09/1984CA1175906A1 Flexible probe for the non-destructive inpsection of long tubes
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