Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
08/1984
08/14/1984US4465583 Electrophoretic separator
08/14/1984US4465582 Continuous flow electrophoresis apparatus
08/14/1984US4465229 Humidity comfort offset circuit
08/14/1984US4464926 Method and apparatus for sensing the presence of oxygen in a gas mixture
08/14/1984US4464925 For detecting relative amounts of hydrogen in a mixture of gases
08/14/1984CA1172696A1 Method for determining the ph value of deionized water
08/08/1984EP0115436A2 Medium for electrophoresis
08/08/1984EP0115346A1 Liquid film type, anion-selective electrode
08/08/1984EP0115183A2 Hydrogen-selective sensor
08/08/1984EP0115182A2 Gas sensor
08/08/1984EP0115148A2 Oxygen sensor
08/08/1984EP0114808A1 Control process of the heat treatment of aluminium alloy strip.
08/07/1984US4464647 Humidity sensor made of metal oxide
08/07/1984US4464339 Gas sensor elements and methods of manufacturing them
08/07/1984US4464244 Oxygen sensing device having solid electrolyte cell and means for supplying controlled current thereto
08/07/1984US4464230 Method of measuring oxygen using a membrane covered polarographic electrode
08/07/1984US4463594 Wide-range temperature operating system for combustion gas oxygen sensor, and method
08/07/1984US4463593 Apparatus for monitoring the partial pressure of gases
08/07/1984CA1172389A1 Ionizer having interchangeable ionization chamber
08/07/1984CA1172202A1 Control of electron bombardment of the exhaust oxygen sensor during electrode sputtering
08/02/1984WO1984002980A1 Method of detecting and insolating piece of insulating substance between small pieces of conductive substance
08/01/1984EP0114647A2 Method for determining the concentrations of organic additives in plating baths
08/01/1984EP0114384A2 Apparatus for testing plastic sections
08/01/1984EP0114310A2 Carbon monoxide sensing element and process for manufacturing it
08/01/1984EP0114235A1 Method for measuring oxygen in gas mixtures
07/1984
07/31/1984US4463316 Method and apparatus for determining the dynamic surface potential of a solution
07/31/1984US4462962 Liquid chromatographic flow cell
07/31/1984US4462930 Humidity sensor
07/31/1984US4462891 Oxygen sensor and high temperature fuel cells
07/31/1984US4462890 Nondiffusing
07/31/1984US4462872 Venting reference gas to adjust pressure between it and monitoring gas
07/31/1984US4462513 Testing coins
07/31/1984US4462250 Grain moisture meter
07/31/1984CA1171976A1 Aging treatment for semiconductor gas sensor
07/31/1984CA1171932A1 Capacitive hygrometer and a process for producing same
07/25/1984EP0114139A2 Device for testing curved pipes with a pneumatically propelled sensor
07/25/1984EP0114102A2 Apparatus for electrochemical detection and coulometric titration
07/25/1984EP0114077A2 Gas sensor
07/25/1984EP0114009A1 Method and apparatus for determining the explosion rate of a gas
07/25/1984EP0113966A2 Electrochemical electrode assembly
07/25/1984EP0014204B1 Metal type detector for drill pipes
07/24/1984US4461998 Ion selective measurements
07/24/1984US4461995 Cooling method and apparatus for eddy current flaw detection
07/24/1984US4461693 Polarity reversal electrodes
07/24/1984US4461615 Combustion control device
07/24/1984US4461363 High-speed capacitive weighing method and apparatus
07/24/1984US4461166 Dynamic current drive method for powering thermal conductivity detectors
07/24/1984CA1171463A1 One piece ion accelerator for ion mobility detector cells
07/24/1984CA1171461A1 Freon gas detecting element
07/19/1984WO1984002720A1 Method and reagent for the differential analysis of isoenzymes of alkaline phosphatase
07/18/1984EP0113700A2 Element for electrophoresis
07/18/1984EP0113675A2 Signal processing method in autoradiography
07/18/1984EP0113427A1 Electrical measuring probe and method of making the probe
07/18/1984EP0113395A2 Monitoring electroless plating
07/17/1984US4460967 Electronic circuit for measuring and displaying ion concentration in fluid
07/17/1984US4460920 Automatically traveling tube-interior manipulator for remotely controlled transportation of testing devices and tools along given feedpaths, preferably for nuclear reactor installations
07/17/1984US4460525 Method for preparing thin layers
07/17/1984US4460451 Gas permeable membranes
07/17/1984US4460008 Indexing controller apparatus for cooling water tower systems
07/17/1984US4460003 Coin presence sensing apparatus
07/11/1984EP0113244A2 Cell unit for observing electrophoresis
07/11/1984EP0113207A2 Method of mass analyzing a sample by use of a quadrupole ion trap
07/11/1984EP0112862A1 A method and an apparatus for performing routine analysis such as polarographic or spectrophotometric analysis.
07/10/1984US4459577 Tin oxide ceramic, connectors
07/10/1984US4459481 Ion source for high-precision mass spectrometry
07/10/1984US4459356 Radioactive staining of gels to identify proteins
07/10/1984US4459199 Ruggedized ion-responsive electrode and its manufacturing process
07/10/1984US4459198 Electrophoretic apparatus
07/10/1984US4459180 Concentration, currents, polarography, calibration, injection, bias, response, maintenance
07/10/1984US4458685 Transcutaneous carbon dioxide measurement electrode assembly
07/10/1984US4458524 Crude oil production stream analyzer
07/10/1984CA1170722A1 Potentiometric electrode
07/10/1984CA1170721A1 Gas-liquid analyzer
07/10/1984CA1170720A1 Combustibles sensor
07/10/1984CA1170719A1 Hydrophilic polyurethane membrane
07/10/1984CA1170717A1 Electro-chemical sensor for the detection of reducing gases, in particular carbon monoxide, hydrazine and hydrogen in air
07/10/1984CA1170437A1 Method of manufacturing a combustibles sensor
07/04/1984EP0112490A2 Alarm and control system for semiconductor manufacturing plants
07/03/1984US4458242 Gas detector
07/03/1984US4458233 Gas sensing element
07/03/1984US4458202 Device for measuring local electric conductivity of low-temperature plasma
07/03/1984US4458150 Mass spectrometer
07/03/1984US4457954 Catalytic gas-sensitive elements
07/03/1984US4457808 Automatic
07/03/1984US4457161 Gas detection device and method for detecting gas
07/03/1984CA1170079A1 High-precision method and apparatus for in-situ continuous measurement of concentrations of gases and volatile products
06/1984
06/27/1984EP0112324A2 Electro-chemical measurement apparatus
06/27/1984EP0112137A1 A cell unit for observing electrophoresis
06/27/1984EP0112004A2 Method and apparatus for sampling a plasma into a vacuum chamber
06/27/1984EP0111733A2 Liquid sensitive element
06/26/1984US4456902 Measures variations in electrical resistance of ceramic base and metal oxides
06/26/1984US4456883 Method and apparatus for indicating an operating characteristic of an internal combustion engine
06/26/1984US4456522 Vapor deposition of coating layer; applying polyimide layer; etching
06/26/1984US4456513 Method of and apparatus for measuring electrophoretic mobility
06/26/1984CA1169940A1 Circuit arrangement in a coin acceptor unit
06/26/1984CA1169678A1 Method and apparatus for detecting the presence of contaminants in a gaseous carrier
06/20/1984EP0111012A1 Ionization type of smoke sensor
06/20/1984EP0026208B1 Improvements relating to conductance meters of a type especially suitable for estimating the moisture content of organic materials
06/19/1984US4455532 Apparatus for measuring charged particle beam
06/19/1984US4455531 Conductance probe for detection of immiscible liquids