| Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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| 07/10/1990 | US4940883 Window burner for polymer coated capillary columns |
| 07/10/1990 | US4940667 Apparatus for monitoring the quality of water |
| 07/10/1990 | US4940658 Assay for sulfhydryl amino acids and methods for detecting and distinguishing cobalamin and folic acid deficency |
| 07/10/1990 | US4940528 Oxygen sensor elements |
| 07/10/1990 | US4940527 Two-part test cartridge for centrifuge |
| 07/10/1990 | US4940333 Method and apparatus for detecting universally and selectively concentration gradients, and for deflecting a light beam in a controlled fashion |
| 07/10/1990 | US4939924 Pulsed coulometric detection with automatic rejection of background signal in surface-oxide catalyzed anodic detections at gold electrodes in flow-through cells |
| 07/10/1990 | US4939908 Apparatus for adjustably controlling the size of an ice bank |
| 07/10/1990 | CA1271523A1 Hydrogen sulphide sensor |
| 07/06/1990 | WO1990007437A1 Rain-actuated control for covering systems |
| 07/06/1990 | CA2024512A1 Rain-actuated control for covering systems |
| 07/05/1990 | DE3943386A1 Self-calibration of measurement system - is pref. for physical, chemical or biochemical parameters, without switching of measurement parameter during calibration using offset |
| 07/05/1990 | DE3941169A1 Analysis appts. to measure liq. or gaseous samples - having electrode block electrodes, thermostat, temp. sensor, heat transfer medium and heating element plus control |
| 07/05/1990 | DE3843831A1 Sensor |
| 07/05/1990 | DE3843352A1 Meter for measuring the concentration of ions contained in gases |
| 07/04/1990 | EP0376920A2 Method and arrangement for diagnostics of friction systems of motors |
| 07/04/1990 | EP0376908A2 Method for continuously measuring cyanide in waste waters from steel making and apparatus therefor |
| 07/04/1990 | EP0376721A2 Moisture-sensitive device |
| 07/04/1990 | EP0376635A2 Transient electromagnetic method for detecting irregularities on conductive containers |
| 07/04/1990 | EP0376611A2 Electrophoretic system |
| 07/04/1990 | EP0376116A2 Method for identifying the position of a crack in reinforcing steel |
| 07/04/1990 | EP0376095A1 Magnetic flux measuring method and apparatus for embodying the same |
| 07/04/1990 | EP0375863A1 Beer bottling process |
| 07/04/1990 | EP0375788A1 Surface-ionization detector for gas mixture analysis |
| 07/04/1990 | CN2058991U Metal investigating device |
| 07/04/1990 | CN1043565A Micro particle analyzer for injection solution |
| 07/04/1990 | CN1043437A Micro type physiological parameter tester for human body fluid |
| 07/04/1990 | CN1008663B Thermomagnetic characteristics tester for rare-earth permanent magnet |
| 07/03/1990 | US4939667 Signal processing method for analyzing autoradiograph |
| 07/03/1990 | US4939469 Non-destructive method for evaluation of printed wiring boards |
| 07/03/1990 | US4939468 Capacitive fluid sensor |
| 07/03/1990 | US4939467 Fuel sensor for sensing the mixture ratio of gasoline and methanol |
| 07/03/1990 | US4939466 Method and apparatus for sensing the regeneration of a diesel engine particulate trap |
| 07/03/1990 | US4939458 Method and apparatus for quantifying superconductivity |
| 07/03/1990 | US4939410 Electrode arrangement with liquid-metal electrode of controllable surface |
| 07/03/1990 | US4939363 Scanning tunneling microscope |
| 07/03/1990 | US4938928 Gas sensor |
| 07/03/1990 | US4938861 Limiting current-type oxygen sensor |
| 07/03/1990 | US4938860 Anode and cathode laminated with glucose permeable silicone water-based elastomer dielectric layer |
| 07/03/1990 | US4938847 Heating, electricity to decompose water |
| 07/03/1990 | US4938593 Photothermal densitometer for reading electrophoresis gels |
| 07/03/1990 | US4938196 Control device for heater for oxygen sensor operative to correct target resistance with reference to standard power supply thereto |
| 07/03/1990 | US4938194 Method of determining deterioration of oxygen concentration sensor |
| 07/03/1990 | US4938080 Automatic pipetting apparatus |
| 07/03/1990 | CA1271222A1 Halitosis detector device |
| 06/30/1990 | CA2006948A1 Capacitive humidity sensor |
| 06/30/1990 | CA2006922A1 Method and arrangement for diagnostics of friction systems of motors |
| 06/28/1990 | WO1990007169A1 Ionization-type combustion gas detector |
| 06/28/1990 | DE3942384A1 Oxygen detection element prodn. - using sinterable paste to form catalytic electrode layer contg. catalytic precious metal power and organometallic cpd. etc. |
| 06/28/1990 | DE3843858A1 Sensor |
| 06/28/1990 | DE3843607A1 Method of calibrating oxygen electrodes |
| 06/28/1990 | DE3843112A1 Method for virus diagnosis for potato tubers and for selection thereof according to productivity |
| 06/28/1990 | DE3843100A1 Einrichtung zur messung der parameter von beweglichen ferromagnetischen erzeugnissen Means for measuring the parameters of movable ferromagnetic products |
| 06/27/1990 | EP0375598A2 Apparatus for moving a push-tube inside pipes |
| 06/27/1990 | EP0375366A2 Method and apparatus using a varying electromagnetic field for determining the nature, or a property of a non-metallic, conductive material |
| 06/27/1990 | EP0375153A1 Detection system for chemical analysis of zinc phosphate coating solutions |
| 06/27/1990 | EP0375070A1 Process for obtaining a multifunctional, ion-selective membrane sensor |
| 06/27/1990 | EP0375013A2 Solid-state sensor for determining hydrogen and/or NOx concentration, and the method for its preparation |
| 06/27/1990 | EP0374986A1 Monitoring drilling mud composition using flowing liquid junction electrodes |
| 06/27/1990 | EP0374985A1 Monitoring drilling mud composition using ion selective electrodes |
| 06/27/1990 | EP0374523A2 Method for monitoring centrally lubricated machine sets |
| 06/27/1990 | EP0327545A4 Determination of particle size and electric charge. |
| 06/27/1990 | EP0215016B1 Solid compositions based on superoxides, production thereof and electrochemical applications thereof |
| 06/27/1990 | EP0215011B1 Mass spectrometer having magnetic trapping |
| 06/26/1990 | US4937557 Monitoring and indicating circuit for reverse osmosis filter |
| 06/26/1990 | US4937524 Rotating eddy current roller head for inspecting tubing |
| 06/26/1990 | US4937219 Oxidation or reduction catalyst, inflammable gas sensor |
| 06/26/1990 | US4937186 Method for the determination of bilirubin in solution |
| 06/26/1990 | US4937038 Solution quantitative analysis apparatus, quantitative analysis methods, and nuclear reactor water quality control system |
| 06/26/1990 | US4936975 Polymeric support, tetraalkylammonium salt and mixture of linear alcohol and organic compound |
| 06/26/1990 | US4936974 Zone electrophoresis apparatus for protein analysis |
| 06/26/1990 | US4936970 Redox reactions in an electrochemical cell including an electrode comprising Magneli phase titanium oxide |
| 06/26/1990 | US4936963 Separation and resolution of dna |
| 06/26/1990 | US4936956 Microelectrochemical devices based on inorganic redox active material and method for sensing |
| 06/26/1990 | US4936333 For controlling the opening/closing of a valve regulating watering |
| 06/26/1990 | CA1270919A1 Method for detecting corrosion on conductive containers having variations in jacket thickness |
| 06/26/1990 | CA1270918A1 Method for detecting corrosion on conductive containers |
| 06/26/1990 | CA1270907A1 Gap measurement eddy current probe |
| 06/26/1990 | CA1270904A1 System and process for inspecting boiler tubes |
| 06/26/1990 | CA1270903A1 Turbine inspection device and associated coil assembly and associated method |
| 06/21/1990 | DE3842318A1 Device for the non-contact testing of internal threads on workpieces made of an electrically conductive material |
| 06/21/1990 | DE3842068A1 Method and apparatus for determining the ammonium nitrogen content in aqueous systems |
| 06/21/1990 | CA2002451A1 Monitoring drilling mud composition using flowing liquid junction electrodes |
| 06/21/1990 | CA2002450A1 Monitoring drilling mud composition using ion selective electrodes |
| 06/20/1990 | EP0374005A1 Method of producing a sensor for detecting gas, und sensor therefor |
| 06/20/1990 | EP0373835A2 Mass spectrometer and method with improved ion transmission |
| 06/20/1990 | EP0373745A2 An electrochemical device containing a deposit of metal oxide or metal salt |
| 06/20/1990 | EP0373742A2 Tunnel unit and scanning head for scanning tunneling microscope |
| 06/20/1990 | EP0373629A1 Test apparatus for measuring concentration of test substance in liquid |
| 06/20/1990 | EP0373444A2 Apparatus for magnetizing |
| 06/20/1990 | EP0373413A1 Assistant apparatus, test apparatus and method for measuring concentration of test substance in liquid |
| 06/20/1990 | CN1008480B Method for examining structure defect |
| 06/20/1990 | CA2005941A1 Method and apparatus using a varying electromagnetic field for determining the nature, or a property of a material |
| 06/19/1990 | US4935699 Means to detect and locate pinching and chafing of conduits |
| 06/19/1990 | US4935373 Reference liquid |
| 06/19/1990 | US4935289 Gas sensor and method for production thereof |
| 06/19/1990 | US4935207 Electrodes for sensing analyte ions in a liquid |
| 06/19/1990 | US4935119 Air/fuel ratio sensor |
| 06/19/1990 | US4935118 Self heated sensor package |
| 06/19/1990 | US4935117 Flow through type ion electrode |