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