| Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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| 05/01/1990 | US4921591 Ion sensors and their divided parts |
| 05/01/1990 | US4921582 Galvanic electrode operated in transient mode controlled by computer |
| 05/01/1990 | US4921346 Tunnel current detecting photo-acoustic spectrometer |
| 05/01/1990 | CA1268520A1 Methods of assay |
| 04/26/1990 | DE3836148A1 Electrical circuit for the control of structure forming processes in foods |
| 04/26/1990 | DE3835597A1 Method of determining sodium chloride in concrete paths |
| 04/26/1990 | CA2001563A1 Process for monitoring and/or differentiating liquids typically encountered in brewing |
| 04/25/1990 | EP0365342A2 Contamination meter |
| 04/25/1990 | EP0365321A2 Electrophoresis apparatus |
| 04/25/1990 | EP0364982A2 Frost and dew sensor |
| 04/25/1990 | EP0364948A2 Method for calibration of electrodes for determining gases and ions in blood sample and reference solutions used therefor |
| 04/25/1990 | EP0364911A1 Tool and inspection probe support for an examination and repair device of a steam generator |
| 04/25/1990 | EP0364573A1 Electrochemically controlled superconductivity |
| 04/25/1990 | EP0364542A1 An electronic controller for a water purifying unit. |
| 04/25/1990 | EP0364437A1 Seal means for isolated grounded 02-sensor |
| 04/25/1990 | EP0226598B1 Gas testing apparatus |
| 04/25/1990 | CN2056512U Controller for oxido-reduction reaction of solution |
| 04/25/1990 | CN1041653A Method and system for on-line calibration and validation of process instrumentation |
| 04/25/1990 | CN1041650A Glass container inspecting machine |
| 04/24/1990 | US4920498 Method of processing and analyzing electrophoretic image, and method of displaying electrophoregram and a medium for recording electrophoregram |
| 04/24/1990 | US4920451 Moisture-sensitive element |
| 04/24/1990 | US4920264 Method for preparing samples for mass analysis by desorption from a frozen solution |
| 04/24/1990 | US4920059 Staining method for proteins and nucleic acids |
| 04/24/1990 | US4920047 By measuring impedance of electrode due to presence or absence of reaction product of immunologically active substace and substrate |
| 04/24/1990 | US4919784 Electrophorresis cassette spacer |
| 04/24/1990 | US4919767 Sensor and method for analyte determination |
| 04/24/1990 | US4919766 Inspection of electrodes having activated layers |
| 04/24/1990 | US4919599 Pumping system for a leak detecting device |
| 04/24/1990 | US4919141 For measuring blood and tissue sugar in diabetics; portable, lightweight, biocompatible |
| 04/24/1990 | US4918974 Method and apparatus for the measurement of the thermal conductivity of gases |
| 04/24/1990 | CA1268209A1 Method of assay using direct monitoring of enzyme label |
| 04/24/1990 | CA1268104A1 Gas testing apparatus |
| 04/19/1990 | WO1990004174A1 Device for calibration of gas sensors |
| 04/19/1990 | WO1990004171A1 SENSOR ELEMENT FOR LIMIT CURRENT SENSOR FOR DETERMINING THE μ VALUE OF GAS MIXTURES |
| 04/19/1990 | WO1990004170A1 Oxygen sensing method and apparatus |
| 04/19/1990 | DE3834987A1 Sensorelement fuer grenzstromsensoren zur bestimmung des (lambda)-wertes von gasgemischen Sensor element for cross-current sensors for determination of (lambda) value of gas mixtures |
| 04/18/1990 | EP0364315A1 Temperature-compensated resistive transducet for measuring relative concentrations of reactive fluid species |
| 04/18/1990 | EP0364208A1 Assay and sensing means for determining analyte |
| 04/18/1990 | EP0363805A1 A monolithic chemical sensor of the chemfet type incorporating an ionselective membrane and method of making the same |
| 04/18/1990 | EP0363616A2 Use of a measuring probe for a measuring head to detect the oxygen activity of metal melts |
| 04/18/1990 | EP0363427A1 Electrochemical micro sensor |
| 04/18/1990 | EP0363401A1 Optimized capacitive sensor for chemical analysis and measurement |
| 04/18/1990 | CN2056253U 防爆式工业酸度计 Explosion industrial pH meter |
| 04/18/1990 | CN1041454A Thermo-catalyzing component with low current or low power loss and manufacturing method |
| 04/18/1990 | CN1041453A Double sensitive film air sensor for both gases of alcohol and nitrogen dioxide |
| 04/17/1990 | US4918391 Sodium content monitor having a unitary housing |
| 04/17/1990 | US4917972 Surface activation layer of iridium oxide |
| 04/17/1990 | US4917800 Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers |
| 04/17/1990 | US4917777 Method for analyzing additive concentration |
| 04/17/1990 | US4917776 Flow through voltammetric analyzer and method using deoxygenator |
| 04/17/1990 | US4917775 Method for measuring and adjusting electrochemical potential and/or component content in the process of treating valuable materials |
| 04/17/1990 | US4917774 Method for analyzing additive concentration |
| 04/17/1990 | US4917067 System for controlling air-fuel ratio of combustible mixture fed to internal combustion engine |
| 04/17/1990 | US4916940 Method and apparatus for measuring and calculating bulk water in crude oil |
| 04/17/1990 | US4916935 Low power solid state gas sensor with linear output and method of making the same |
| 04/17/1990 | US4916934 Oxygen sensors |
| 04/17/1990 | CA1267933A1 Instrument for potentiometric electrochemical measurements in earth grounded solutions |
| 04/12/1990 | DE3910195C1 Device for determining the moisture of bulk material |
| 04/12/1990 | DE3834240A1 Housing for measuring probes in conduits and use of the housing for in situ measuring probes |
| 04/11/1990 | EP0363182A1 Electrolytic sensors |
| 04/11/1990 | EP0362991A2 Improved electrophoresis apparatus and method |
| 04/11/1990 | EP0362813A2 Ion analyzer |
| 04/11/1990 | EP0362736A2 Oxygen probe for a heat treatment oven |
| 04/11/1990 | EP0362613A2 Electromechanical translation apparatus |
| 04/11/1990 | EP0362339A1 Process for immobilizing or depositing molecules or substances on a support. |
| 04/11/1990 | EP0362304A1 Chemical sensors employing catalytic antibodies. |
| 04/11/1990 | EP0362296A1 Spin coating of electrolytes |
| 04/11/1990 | EP0362203A1 Dynamic precious metal assay device |
| 04/10/1990 | US4916394 Device for adjustable mounting of magnetic sensing coils used in pipe inspection |
| 04/10/1990 | US4916392 Contactless current control sensor in apparatus for magnetoelectric crack detection |
| 04/10/1990 | US4916384 Apparatus for measuring the soot particles contained in the exhaust gas emitted from diesel engines |
| 04/10/1990 | US4916313 Method and apparatus for the determination of isotopic composition |
| 04/10/1990 | US4916075 Differential homogeneous immunosensor device |
| 04/10/1990 | US4915816 Lithium doped nafion strip |
| 04/10/1990 | US4915815 Sensor incorporating a heater |
| 04/10/1990 | US4915814 Sensor for measurement of air/fuel ratio and method of manufacturing |
| 04/10/1990 | US4915813 Oxygen concentration detecting device |
| 04/10/1990 | US4915812 Zero volume cell |
| 04/10/1990 | US4915811 Monconductor polymer film; spacer between two sheets; electrophoresis gel |
| 04/10/1990 | US4915713 Debubbling fluid from automatic clinical analyzers |
| 04/10/1990 | US4915084 Combustion engine with multi-fuel capability |
| 04/10/1990 | US4915077 Air-fuel ratio control apparatus |
| 04/10/1990 | EP0352286A4 Improvements relating to separation of charged molecules. |
| 04/10/1990 | CA1267706A1 Process for accurately determining plate positions in steam generators |
| 04/09/1990 | EP0269672A4 Device for measuring magnetic particles in a liquid. |
| 04/07/1990 | CA2000273A1 Enhanced amperometric sensor |
| 04/05/1990 | WO1990003571A1 Method and apparatus for charge distribution analysis |
| 04/05/1990 | WO1990003570A1 A magerast-type probe for determining the oxygen concentration in exhaust gases |
| 04/05/1990 | WO1990003569A1 Rapid, temperature-compensated sensor, in particular for oxygen and automobile exhaust fumes |
| 04/05/1990 | DE3833295A1 Schneller, temperaturkompensierter sensor, insbesondere fuer sauerstoff und fuer autoabgase Faster, temperature compensated sensor, in particular for oxygen and for car exhaust fumes |
| 04/05/1990 | DE3833073A1 Oxygen partial pressure probe, especially lambda probe |
| 04/04/1990 | EP0362036A2 System and process for detecting properties of travelling sheets in the cross direction |
| 04/04/1990 | EP0362032A2 Calibration solution and calibration method for sensor |
| 04/04/1990 | EP0361942A2 NMR apparatus and method for electrophoretic mobility |
| 04/04/1990 | EP0361810A2 Pulsed coulometric detection |
| 04/04/1990 | EP0361750A2 Capillary electrophoretic system |
| 04/04/1990 | EP0361692A2 Sensor for determining relative amount of oxygen containing gas in a gas mixture |
| 04/04/1990 | EP0361310A2 Apparatus for measuring the activity or the concentration of ions in solutions |
| 04/04/1990 | EP0361278A2 Disposable sensor |
| 04/04/1990 | EP0361062A2 Method and apparatus for electrophoretically separating, cleaning and enriching charged or polarizable macromolecules |