Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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05/30/1989 | US4834842 Method of measuring the effective inhibitor concentration during a deposition of metal from aqueous electrolytes and test apparatus therefor |
05/30/1989 | US4834101 Catheter-type electrochemical sensors |
05/30/1989 | US4834051 Oxygen sensor and an air-fuel ratio control apparatus of an internal combustion engine using the same |
05/30/1989 | US4833909 Gas-sensing apparatus |
05/30/1989 | CA1254830A1 Examining cells by electrophoresis |
05/24/1989 | EP0317483A1 Method for determining the reliability of male contraceptives |
05/24/1989 | EP0317299A2 Odor identifying apparatus and method |
05/24/1989 | EP0317255A2 Leak detecting apparatus |
05/24/1989 | EP0317239A2 Method and device for improved restriction fragment length polymorphism analysis |
05/24/1989 | EP0316514A1 Switched field ion mobility spectrometry (IMS) |
05/24/1989 | EP0316380A1 Electrochemical sensor with solid phase electrolyte. |
05/24/1989 | EP0316327A1 Method and apparatus of belt testing |
05/24/1989 | DE3816867C1 Device and method for the determination of the proportions of the components of a mixture |
05/24/1989 | DE3811865C1 Measurement device for measuring the oxygen partial pressure in aggressive liquids at high temperature |
05/24/1989 | DE3737215A1 Elektrochemischer messfuehler Electrochemical measurement sensor |
05/24/1989 | CN2038238U Humidity-sensitive sensor |
05/24/1989 | CN1033108A Plastic container inspection process |
05/24/1989 | CN1033107A Manufacturing method of tantalum-tantalum monoxide ph sensor |
05/23/1989 | US4833413 Salinity measuring system |
05/23/1989 | US4833332 Scanning fluorescent detection system |
05/23/1989 | US4832818 Porous stabilized zirconia electrolytic plate |
05/23/1989 | US4832817 Simple inspection device for analyzer for ionic activity measurement |
05/23/1989 | US4832815 Wavelength dispersion electrophoresis apparatus |
05/23/1989 | US4832797 Enzyme electrode and membrane |
05/23/1989 | CA1254617A1 Transparent multi-oxygen sensor array |
05/18/1989 | WO1989004481A1 Interface circuit for use in a portable blood chemistry measuring apparatus |
05/18/1989 | WO1989004480A1 Electrochemical sensor |
05/18/1989 | WO1989004479A1 Electrode system for use in a portable blood chemistry measuring apparatus |
05/18/1989 | WO1989004474A1 A portable blood chemistry measuring apparatus |
05/18/1989 | WO1989004364A1 Bioelectrochemical reactions in organic solvents |
05/18/1989 | DE3836819A1 Gasfuehler mit phtalocyanin Gasfuehler with phthalocyanine |
05/17/1989 | EP0316260A2 Method for the analytical determination of the content of chlorinated hydrocarbons |
05/17/1989 | EP0315887A2 Eddy current flaw detecting apparatus and method |
05/17/1989 | EP0315854A1 Measurement method for moisture content in the skin and apparatus therefor |
05/17/1989 | EP0315790A1 Chemical sensors and their divided parts |
05/17/1989 | EP0315788A2 Ion sensor |
05/17/1989 | CN2037846U Sensor for pincerlike moisture teller |
05/16/1989 | US4831493 Windshield moisture sensor |
05/16/1989 | US4831332 Continuous adjusting apparatus for detecting gaseous impurities with a corona discharge |
05/16/1989 | US4831325 Capacitance measuring circuit |
05/16/1989 | US4831324 Method and apparatus for analyzing the electrode inpedance |
05/16/1989 | US4831254 Ion drift detector |
05/16/1989 | US4830830 Apparatus for determining base sequence of nucleic acid |
05/16/1989 | US4830727 Composite probe for measuring the concentration of an impurity element in molten iron |
05/16/1989 | US4830726 Separation of large DNA molecules in alternating asymmetric electric fields |
05/16/1989 | US4830725 Electrophoresis apparatus |
05/16/1989 | US4830713 Regeneration method and device |
05/16/1989 | US4829837 Robotic liquid separation sensing using a cannula |
05/16/1989 | US4829810 Filament drive circuit |
05/16/1989 | US4829809 Gas calibration method and apparatus |
05/16/1989 | CA1254265A1 Lift-off compensation of eddy current probes |
05/11/1989 | DE3736333A1 Heavy-current cable having a moisture sensor |
05/11/1989 | DE3736307A1 Method and apparatus for determining the solids content and the water content in fluxes (particularly at low solids content) in automatic soldering machines |
05/10/1989 | EP0314919A2 Combustible gas detector having temperature stabilization capability |
05/10/1989 | EP0314726A1 Process and installation for determining the thickness of layers in layered semi-conductors |
05/10/1989 | EP0314688A1 Method and apparatus for amperometric detection |
05/10/1989 | CN2037477U Portable thermoelectric measurement apparatus |
05/09/1989 | USRE32920 Testing blood for copper and iron |
05/09/1989 | US4829253 Three wire amplifier circuit with diagnostic capabilities |
05/09/1989 | US4829246 Apparatus having inductively coupled coaxial coils for measuring buildup of slay or ash in a furnace |
05/09/1989 | US4829238 Method and apparatus for monitoring electromagnetic emission levels |
05/09/1989 | US4829163 Crack detector for heated glass panel |
05/09/1989 | US4829007 Process for detecting a plateable metal in an aqueous fluid |
05/09/1989 | US4828800 Ionization |
05/09/1989 | US4828673 Apparatus for measuring combustible gas concentration in flue gas |
05/09/1989 | US4828672 Unitary self-generating reference gas sensor |
05/09/1989 | US4828671 Unitary self-referencing combined dual gas sensor |
05/09/1989 | US4828670 Electrophoretic support medium and method of making same |
05/09/1989 | US4828669 Electrophoresis device with removable buffer tank |
05/09/1989 | US4828589 Filter unit with apparatus for determining the saturation of a drying cartridge |
05/09/1989 | US4827780 Automatic pipetting apparatus |
05/09/1989 | CA1253919A1 Remote conductivity sensor having coplanar transformer cores in fluid flow path |
05/05/1989 | WO1989004061A1 Microelectrochemical devices and method of detecting |
05/05/1989 | WO1989003991A1 Methods of detecting micro-organisms |
05/05/1989 | WO1989003988A1 A magnetic particle inspection system and a cable unit for use therein |
05/05/1989 | WO1989003871A1 Immobilised enzyme electrodes and a method for reducing the alcohol sensitivity |
05/05/1989 | WO1989003721A1 Textile for manufacturing electrophoresis gels |
05/03/1989 | EP0314088A2 Conductivity measuring device |
05/03/1989 | EP0314045A2 Wavelength dispersion electrophoresis apparatus |
05/03/1989 | EP0313658A1 Moisture remover |
05/03/1989 | EP0313657A1 Reference electrode |
05/03/1989 | EP0313629A1 A system employing a biosensor to monitor a characteristic of a select component in a medium |
05/03/1989 | DE3839948A1 Electrophoresis apparatus for carrying out horizontal or vertical gel electrophoresis |
05/03/1989 | DE3736205A1 Modified glass-fibre membranes, method for manufacturing them, and their use for protein-chemical analysis |
05/03/1989 | DE3736200A1 Method of operating a semiconductor gas sensor working on the calorimeter principle and having a plurality of sensor elements |
05/03/1989 | DE3736087A1 Gewebe zur herstellung von elektrophoresegelen Tissue for the production of electrophoresis gels |
05/03/1989 | DE3735873A1 Appliance for fractionating solutions |
05/03/1989 | DE3734634A1 Integrated process for the electrochemical modification of a chemical sensor and an array of chemical sensors |
05/02/1989 | US4827216 Differential triple-coil tester for wire rope with periodic lay effect cancellation |
05/02/1989 | US4827215 Method of and apparatus for magnetic saturation testing a wire rope for defects |
05/02/1989 | US4827154 Control system for air cleaner |
05/02/1989 | US4826771 Procedure to be performed in conjunction with protein blotting or nucleic acid blotting |
05/02/1989 | US4825683 Apparatus for evaluating an oxygen sensor |
05/02/1989 | CA1253569A1 Test medium and method for detecting phosphorus segregates in metallic material |
05/02/1989 | CA1253568A1 Assay for salicylate and apparatus for performing same |
04/27/1989 | DE3835339A1 Arrangement for the examination of ions, atoms and molecules in gases and liquids |
04/27/1989 | DE3835081A1 Verfahren und einrichtung zur analyse organischer verbindungen mittels der chromatographie Method and device for the analysis of organic compounds by means of chromatography |
04/26/1989 | EP0313546A2 Method and arrangement for calibrating a measuring device |
04/26/1989 | EP0313411A1 Methods of detecting micro-organisms |
04/26/1989 | EP0313390A2 Gas sensor and method for production thereof |