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)
10/1989
10/17/1989US4875083 Reduced electrical resistance and leakage; high temperature, radiation operation
10/17/1989US4875031 Vapor monitoring system
10/17/1989US4874979 Electromechanical translation apparatus
10/17/1989US4874943 Mass spectrometer ion excitation system
10/17/1989US4874501 Membrane for an electrochemical measuring electrode device
10/17/1989US4874500 Monolithic substrate, conductor and electrodes
10/17/1989US4874499 Electrochemical microsensors and method of making such sensors
10/17/1989US4874492 Irradiating fluorescent labels; detection of light pattern
10/17/1989US4874491 Buffer to self-supporting gel matrix
10/17/1989US4874490 Pre-cast gel systems for two-dimensional electrophoresis
10/17/1989US4873862 Heating stabilized glass and noble gas to evolve electrons
10/11/1989EP0336615A1 Electromagnetic flowmeter capable of simultaneous measurement of flow rate and conductivity of fluid
10/11/1989CN2045854U Electrophoresis device
10/11/1989CN1036265A Capillary electrophoresis
10/10/1989US4873648 Watercut monitor device and method
10/10/1989US4873642 Method for controlling an oxygen concentration sensor for use in an air/fuel ratio control system of an internal combustion engine
10/10/1989US4873489 Method and apparatus for measurement of charge entrained in fluids
10/10/1989US4872966 Sheet type electrode for use in the measurement of ion concentrations
10/10/1989US4872956 Methods of measuring ion-concentration and the like and a calibrating sheet as well as a calibrating method of measuring devices used therein
10/10/1989US4872316 System for monitoring a liquid entrained in a fluid
10/05/1989WO1989009486A1 Isotope-ratio-monitoring gas chromatography-mass spectrometry apparatus and method
10/05/1989WO1989009436A1 An electronic controller for a water purifying unit
10/05/1989WO1989009417A1 Detector
10/05/1989WO1989009406A1 Process for immobilizing or depositing molecules or substances on a support
10/05/1989WO1989009398A1 Oxygen probe assembly
10/05/1989WO1989009397A1 Biosensor and process for its production
10/05/1989WO1989009396A1 Apparatus for measuring parameters in a moving fluid and a method of making a cell therefor
10/05/1989WO1989009387A1 Concentration detection element for solute in aqueous solution
10/05/1989WO1989009206A1 ACRYLAMIDE DERIVATIVE COMPOSITION, STABLE IN STORAGE AND TO BE USED FOR GENERATING IMMOBILIZED pH GRADIENTS
10/05/1989DE3908918A1 Verfahren zur bestimmung von terbium oder europium enthaltenden chemischen komponenten Method for the determination of terbium or europium-containing chemical components
10/05/1989DE3908255A1 System and method for measuring the hydrogen concentration in water
10/04/1989EP0335859A2 Device for determining components in a sample
10/04/1989EP0335767A1 Device for measuring the water content of skin
10/04/1989EP0335757A1 Control process using impulsiv eddy currents, and device to use it
10/04/1989EP0335703A2 Hydrophilic fine gel particles and process for production thereof
10/04/1989EP0335666A2 Unitary dual gas sensors
10/04/1989EP0335665A2 Unitary gas sensors
10/04/1989EP0335326A2 Ion permeable membrane and ion transport method by utilizing said membrane
10/04/1989EP0335167A1 Enzyme electrode for measuring malto-oligosaccharide and measuring apparatus using the same
10/04/1989EP0335055A1 Amperometric method
10/04/1989EP0334908A1 Magnetometer
10/04/1989EP0239569A4 Neurological and biological molecular electro-optical devices and method.
10/04/1989CN2045492U Electrolyzer for trace element tester by electric potential digestion process
10/03/1989US4871680 Process for the detection of molecular or ionic species
10/03/1989US4871442 Electroconductive layer, redox layer, barrier layer, ion selective layer
10/03/1989US4871441 Ion activity measuring device
10/03/1989US4871440 Enzyme electrode;elecric signal generated to measure amount of reaction product produced or lost
10/03/1989US4871439 Disposable self-calibratable electrode package
10/03/1989US4871427 Ion detection using a differential resistance measurement of an ion exchange membrane
10/03/1989US4870967 Measuring arrangement for controlling an implantable body-assist device
10/03/1989CA1262041A1 Bonded hydrogen conducting solid electrolytes
09/1989
09/28/1989DE3807603A1 Semiconducting gas sensor
09/27/1989EP0334779A1 Method and apparatus to detect the nature of combustion gas with a view to optimize combustion and applications thereof
09/27/1989EP0334756A1 Method for staining nucleic acid detected by non-radioactive labelling and kit for use in this method
09/27/1989EP0334615A2 Electrophoresis apparatus
09/27/1989EP0334614A2 Catalytic gas detector
09/27/1989EP0333862A1 Ion carrier membrane and ion sensor provided with same
09/27/1989EP0333861A1 Ion-selective fet sensor
09/27/1989EP0333860A1 Enzymatic sensor
09/27/1989EP0333818A1 Analytical apparatus
09/27/1989EP0333806A1 Reference electrode
09/27/1989EP0148245B1 Method and system to measure geometric and electromagnetic characteristics of objects
09/27/1989CN2045113U Portable alcohol tester
09/27/1989CN2044944U High stability drinking wine measuring device for driver
09/27/1989CN1035894A Automatic iron analyzing system
09/26/1989US4870365 Measuring device, reinforcement rod, process for detecting mechanical defects in fiber composite building elements and application of the process
09/26/1989US4870360 Apparatus for identifying an electrically conducting material
09/26/1989US4870025 Oxidation catalysts of different selectivity
09/26/1989US4869873 Measuring probe for determining volatile consitituents in a liquid medium
09/26/1989US4869787 Gold electrodes, accuracy
09/26/1989CA1261784A1 Electrophoretic gel from crosslinked and polymerized monomers with porosity gradient
09/26/1989CA1261720A1 Combined sensor device for detecting toxic gases
09/26/1989CA1261422A1 Cuvette belt faulty seal detector
09/26/1989CA1261393A1 Determination of biomass
09/26/1989CA1261256A1 Devices for use in chemical test procedures
09/26/1989CA1261170A1 Ferromagnetic wear detector and method
09/26/1989CA1261031A1 Fluid detection system
09/26/1989CA1261001A1 System for detecting faulty elements of isolator assemblies on high voltage lines
09/26/1989CA1260538A1 Biochemical detector
09/26/1989CA1260159A2 Molecule-based microelectronic devices
09/26/1989CA1260105A1 Conveyor belt cord break detection
09/26/1989CA1260064A1 System for online-detecting transformation value and/or flatness of steel or magnetic material
09/26/1989CA1260063A1 Test strip identification
09/26/1989CA1260062A1 Gas sensor
09/21/1989WO1989008898A1 Sensor for verification of genuineness of security paper
09/21/1989WO1989008840A1 ELEMENT FOR LIMIT-CURRENT SENSORS FOR DETERMINING THE lambda VALUE OF A GAS MIXTURE
09/21/1989WO1989008838A1 Measuring electrical impedance of low conductivity samples
09/21/1989WO1989008837A1 A device for measuring thermal properties of a sample of a substance
09/21/1989DE3808305A1 Gas measuring device to measure and monitor the concentration of gases
09/20/1989EP0333700A1 Electrode
09/20/1989EP0333246A2 Electrochemical sensor and method
09/20/1989EP0333103A2 Exhaust gas sensor and process for producing same
09/20/1989EP0332935A1 Sensor material for the measurement of the partial pressure of gases or vapours, and gas sensor
09/20/1989EP0332934A2 Apparatus for measuring the partial pressure of gases or vapours
09/20/1989EP0332933A2 Method for electrically measuring the concentration of acids
09/20/1989EP0197987B1 Process for preparing a solution of inverted micellae
09/20/1989EP0182921B1 Gas sensor
09/20/1989CN2044765U Indirectly heated micro gas-sensitive element
09/19/1989US4868769 Method and an apparatus for determination of basic values
09/19/1989US4868746 Signal processing method in autoradiography
1 ... 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 ... 1099