Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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12/14/1988 | CN87103013A Nondestructive testing method for reinforced concrete structures |
12/13/1988 | US4791465 For detecting ion concentration |
12/13/1988 | US4791374 In lubricating oil of internal combustion and diesel engines using an electroconductive polymer |
12/13/1988 | US4791354 Method for measuring the AC electrical conductance of a polymeric composite to determine homogeneity of dispersion of a filler |
12/13/1988 | US4791353 Scanning combination thickness and moisture gauge for moving sheet material |
12/13/1988 | US4790925 Electrochemical gas sensor |
12/13/1988 | US4790924 Method of fabrication of air/fuel sensors based on electrochemical pumping and sensors made thereby |
12/13/1988 | US4790919 Photopolymerized acrylamides; controlled porosity gradients |
12/13/1988 | CA1246675A1 Measurement of gas content in molten metal using a constant current source |
12/13/1988 | CA1246674A1 Apparatus for chemical measurement of blood characteristics |
12/08/1988 | DE3818845C1 Glass electrode having integrated reference electrode (one-piece electrode) and immobilised electrolytes |
12/07/1988 | EP0294359A2 Oxygen-stable substituted ferrocene reference electrode |
12/07/1988 | EP0294340A2 Method and apparatus for detection of gases as impurities in an inert gas |
12/07/1988 | EP0294334A1 Capacitance measuring detector |
12/07/1988 | EP0294159A1 Branched sensor system |
12/07/1988 | EP0294085A2 Electrochemical elements |
12/07/1988 | EP0294001A1 Process for measuring the effective inhibitor concentration during metal deposition from aqueous electrolytes |
12/07/1988 | EP0293858A2 Apparatus for measuring electrolytes |
12/07/1988 | EP0293663A2 Apparatus and method for determining hydrofluoric acid in aqueous solutions |
12/07/1988 | EP0293658A1 Apparatus for transferring biological specimens from a gel to a transfer membrane and method |
12/07/1988 | EP0293541A1 Amperometric apparatus, cell and method for determination of different gaseous species |
12/07/1988 | CN87213961U Slope displaying and adjustable soda-acid property testing instrument |
12/06/1988 | US4789828 Coolant structure for a device for determining the quality of hot test objects |
12/06/1988 | US4789827 Magnetic flux leakage probe with radially offset coils for use in nondestructive testing of pipes and tubes |
12/06/1988 | US4789804 Analytical device and method utilizing a piezoelectric crystal biosensor |
12/06/1988 | US4789783 Discharge ionization detector |
12/06/1988 | US4789561 Oxygen electrode with layer comprising electrode and electrolyte materials |
12/06/1988 | US4789454 Solid solutions of urania and/or scandia, dyprosia, yttria, praseodymia coated with noble metal |
12/06/1988 | US4789453 Electrodes for the combined measurement of oxygen and carbon dioxide |
12/06/1988 | US4789445 Method for the electrodeposition of metals |
12/06/1988 | US4789436 Polarographically with clarke type electrode |
12/06/1988 | US4789435 Spotting reference and sample liquids on electrically insulated ion-selective electrode sheets |
12/06/1988 | CA1246246A1 Method and apparatus having rf biasing for sampling a plasma into a vacuum chamber |
12/06/1988 | CA1246224A1 Method and an apparatus for determining the degree of freshness of pieces of food |
12/06/1988 | CA1246145A1 Computerized electromagnetic internal diameter tubular inspection device |
12/01/1988 | WO1988009501A1 Spin coating of electrolytes |
12/01/1988 | WO1988009500A1 Electrochemical micro sensor |
12/01/1988 | WO1988009499A1 Optimized capacitive sensor for chemical analysis and measurement |
12/01/1988 | WO1988007678A3 Circuit arrangement for evaluating a signal produced by a semiconductor sensor |
12/01/1988 | DE3715856A1 Apparatus for concentrating electrically charged macromolecules - in particular eluted from a gel - situated in a liquid |
12/01/1988 | DE3715700A1 Measuring capacitor |
11/30/1988 | EP0293276A1 Method of making a substrate having a high resistivity, and its use in a gas analysis probe |
11/30/1988 | EP0293230A2 Acidic gas sensors |
11/30/1988 | EP0293010A2 Method of producing gradient gel medium membrane for electrophoresis |
11/30/1988 | EP0292974A2 Atmospheric sampling glow discharge ionization source |
11/30/1988 | EP0292837A1 Polycationic buffers and method for gel electrophoresis of nucleic acids |
11/30/1988 | CN88211182U Micro-leakage reference electrode |
11/30/1988 | CN88201272U Steel wire flaw detector without damage |
11/29/1988 | US4788506 Measuring probe |
11/29/1988 | US4788499 Method and eddy current test probe for the inspection of screws for nuclear reactor pressure vessels |
11/29/1988 | US4788491 Method of the measurement of interstitial atoms in alloys including the hydrogen content of solid hydrides, and of sorbed species on surface |
11/29/1988 | US4788466 Piezoelectric sensor Q-loss compensation |
11/29/1988 | US4787966 Oxygen concentration sensor for an internal combustion engine |
11/29/1988 | CA1245722A1 Method and apparatus for measuring electrical conductivity of a subject |
11/24/1988 | DE3733355C1 Apparatus for measuring the moisture (humidity) in a gas at high temperature and high pressure |
11/23/1988 | EP0292187A1 Method of using an ion trap in the chemical ionization mode |
11/23/1988 | EP0292130A2 Toner concentration detection |
11/23/1988 | EP0291904A2 Ion-selective electrode having a non-metal sensing element |
11/23/1988 | EP0291903A2 Membrane anchor for ion-selective electrodes |
11/23/1988 | EP0291528A1 Solid compositions for fuel cells, sensors and catalysts |
11/23/1988 | EP0291527A1 Quality control systems. |
11/23/1988 | EP0291508A1 Capacitive sensor circuit. |
11/23/1988 | CN88212190U Electronic detector for water content in oil |
11/23/1988 | CN88100066A Water quality manage method, conductance measuring method and device used in there |
11/22/1988 | US4786875 Conductivity measuring circuit |
11/22/1988 | US4786476 Titanium oxide and europium, samarium or indium oxide, internal combustion engine |
11/22/1988 | US4786399 Seal means for isolated grounded O2 sensor |
11/22/1988 | US4786398 Sensing concentration in unknown gas relative to refreence gas; excluding water |
11/22/1988 | US4786397 Seal for single wire O2 sensor |
11/22/1988 | US4786396 Ion electrode and method of making it |
11/22/1988 | US4786395 Oxygen analyzer |
11/22/1988 | US4786374 Electro-chemical sensors and methods for their manufacture and use |
11/22/1988 | US4786373 Voltammetric method of measuring |
11/22/1988 | US4786372 Analysis of fluid samples |
11/22/1988 | US4785658 Method and apparatus for sensing hydrocarbon gases |
11/22/1988 | EP0195070A4 Method and apparatus for producing electromagnetic surveillance fields. |
11/22/1988 | CA1245377A1 Method and apparatus for detecting very small concentrations of gases or vapors in a gas mixture |
11/22/1988 | CA1245287A1 General purpose potentiostatic test system |
11/17/1988 | WO1988009053A1 Process and installation for determining the thickness of layers in layered semi-conductors |
11/17/1988 | WO1988008975A2 Electrochemical sensor with solid phase electrolyte |
11/17/1988 | WO1988008974A1 Electrode |
11/17/1988 | WO1988008973A1 Improved flow cell |
11/17/1988 | WO1988008972A1 A system employing a biosensor to monitor a characteristic of a select component in a medium |
11/17/1988 | WO1988008957A1 Gap, wear and tram measurement system and method for grinding machines |
11/17/1988 | WO1988008875A1 Cycling biochip sensor |
11/17/1988 | WO1988008742A1 Moisture remover |
11/17/1988 | EP0291462A2 Integrated-circuit micro probe for detecting certain gases |
11/17/1988 | EP0291363A2 Method for measuring the content of carbonaceous matters in an oil for diesel engines |
11/17/1988 | EP0291130A2 Biosensor with enzymatic membrane chemically bound to a semiconductor device |
11/17/1988 | EP0291063A2 Electroblotting apparatus and method for transferring specimens from a polyacrylamide electrophoresis or like gel onto a membrane |
11/17/1988 | EP0290522A1 Device for generating and detecting magnetic material structures at atomic levels. |
11/17/1988 | EP0290513A1 Method for detecting thickness variations in the wall of a current conducting tubular body. |
11/17/1988 | EP0195792B1 Method and device for detecting by using foucault currents typical defects on a product |
11/17/1988 | EP0127645B1 Fire alarm and electrode device therefor |
11/17/1988 | DE3715275A1 Method and apparatus for generating a control signal dependent on the oxygen content in gases |
11/17/1988 | DE3715260A1 Apparatus for the detection and for the quantitative determination of nitrogen dioxide in a gas mixture and a method for making the apparatus |
11/17/1988 | DE3644821A1 Arrangement and method for installation and exchange of sensors in instruments of all types |
11/16/1988 | CN88102481A System and method for detecting contaminanis in steam power generating system |
11/15/1988 | US4785284 Fire monitoring system |
11/15/1988 | US4785243 Electronically scanned eddy current flaw inspection |