| Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
|---|
| 01/16/1991 | EP0407460A1 An integrated mass storage device. |
| 01/16/1991 | EP0363427A4 Electrochemical micro sensor |
| 01/16/1991 | EP0291508B1 Capacitive sensor circuit |
| 01/16/1991 | CN2069561U Enamel-covered wire pinhole and withstand voltage automatic detector |
| 01/16/1991 | CN2069560U Thermostatic electrophoresis cell for paper membrane medium carrier |
| 01/16/1991 | CN2069559U Combustible gas speedy detecting device |
| 01/16/1991 | CN2069558U Announcer for potted flower humidity detection |
| 01/16/1991 | CN1048598A Linear compensation method for mining carrier catalyst element |
| 01/15/1991 | US4985682 Leak monitor for secondary containment of liquid stored in underground storage tanks |
| 01/15/1991 | US4985627 Spin-polarized scanning tunneling microscope |
| 01/15/1991 | US4985130 Amperometric method and apparatus |
| 01/15/1991 | US4985129 Apparatus for capillary electrophoresis |
| 01/15/1991 | US4985128 Polyacrylamide water-swelled porous matrix |
| 01/15/1991 | US4985126 Apparatus and process for continuously monitoring concentrations of gaseous components in gas mixtures, with exception of O2 |
| 01/15/1991 | US4985125 Method for detecting meat freshness using a biosensor |
| 01/15/1991 | US4985123 Chemical potential of oxygen |
| 01/15/1991 | US4984453 Indenter for fractoemission measurement |
| 01/15/1991 | US4984446 Gas detecting device and gas detecting system using the same |
| 01/15/1991 | CA2020930A1 Device and methodology for characterizing superconductive materials |
| 01/15/1991 | CA1279112C Marking tape with wire conductors and methods for use |
| 01/10/1991 | WO1991000515A1 Probe for measuring oxygen partial pressures |
| 01/10/1991 | DE4020318A1 Measurement instrument, e.g. for pH value or dissolved oxygen - has display showing values and operating modes for selection by cursor |
| 01/10/1991 | DE3920849A1 Measurement sensor for C-level of furnace atmospheres - has iron wire sensor near open end of pref. ceramic tube with connecting electrodes to evaluation device |
| 01/10/1991 | DE3920103A1 Probe for polarographic gas determn. - has metallic electrode(s) immersed in oxygen-contg. soln. and coated with polymer |
| 01/10/1991 | DE3920052A1 Inertial mass measuring system deriving physical characteristics - uses vibrating oscillator working with higher and/or variable damping e.g. in liq. |
| 01/09/1991 | EP0407141A1 Apparatus and method for transfer of macromolecules |
| 01/09/1991 | EP0407128A1 Method of evaluating air-fuel ratio sensor and apparatus therefor |
| 01/09/1991 | EP0407030A1 Method and apparatus for analysing solid samples |
| 01/09/1991 | EP0406924A1 Method and device for checking damage on the surface of round metal objects |
| 01/09/1991 | EP0406413A1 Scanning type tunnel microscope |
| 01/09/1991 | EP0406293A1 Measuring electrical impedance of low conductivity samples. |
| 01/09/1991 | EP0406252A1 ELEMENT FOR LIMIT-CURRENT SENSORS FOR DETERMINING THE -g(l) VALUE OF A GAS MIXTURE. |
| 01/09/1991 | CN2069115U Electrodes used in electrolyte solution without addition of reference electrolyte solution |
| 01/08/1991 | US4983923 Frictional electrostatic voltage measuring equipment |
| 01/08/1991 | US4983913 Method and apparatus for measuring a gas by exploiting the paramagnetic properties of the gas |
| 01/08/1991 | US4983829 Method for analyzing gases according to the counter flow principle |
| 01/08/1991 | US4983516 Graphitized carbon felt or cloth rolled into a spiral |
| 01/08/1991 | US4983360 Gallium nitride and oxynitrides used as selective detectors of reducing gases, process of making and device containing them |
| 01/08/1991 | US4983271 Oxygen sensor |
| 01/08/1991 | US4983268 High speed electrophoresis using purified agarose |
| 01/08/1991 | US4982598 Chemical with electrical resistance or dielectric constant which changes in response to pressure, crown compound, phthalide |
| 01/08/1991 | CA2020609A1 Apparatus and method for transfer of macromolecules |
| 01/03/1991 | DE3921185A1 Oxygen partial pressure probe suitable for vehicle exhaust gases - has substrate carrying oxygen on conducting layer with electrodes for pumping ion flow |
| 01/03/1991 | DE3920076A1 Superconductivity critical temp. measuring system - useful for high temp. superconductor thin films |
| 01/02/1991 | EP0405973A1 Scanning tunnelling microscope in combination with an optical microscope |
| 01/02/1991 | EP0405587A1 Planar interdigitated dielectric sensor |
| 01/02/1991 | EP0405490A2 Method of and apparatus for determining properties of material |
| 01/02/1991 | EP0405483A2 Measurement cell for the electrochemical detection of gases |
| 01/02/1991 | EP0405435A1 Diffusion barrier with temperature sensor for an electrochemical gas sensor |
| 01/02/1991 | EP0405229A2 Method and device for measuring the volumetric water content of mineral and/or organic mixtures |
| 01/02/1991 | EP0404934A1 A method of preparing samples for mass analysis by desorption from a frozen solution. |
| 01/02/1991 | EP0404799A1 Integrated scanning tunneling microscope. |
| 01/02/1991 | CN2068683U High precision ph value assaying device |
| 01/02/1991 | CN2068682U Integrated micro-pipeline flow injection analysor |
| 01/02/1991 | CN1011079B Sampler of constan-velocity cappillary electrophoresis apparatus |
| 01/02/1991 | CN1011078B Low-noise coulomb detector for flow system |
| 01/02/1991 | CN1011077B Current detector for flow system |
| 01/02/1991 | CA1278603C Non destructive testing for creep damage of a ferromagnetic workpiece |
| 01/01/1991 | USH879 Method and device for inspecting circumferentially conducting materials |
| 01/01/1991 | US4982326 Method for analyzing autoradiograph for determining base sequence of nucleic acid |
| 01/01/1991 | US4982158 Method and apparatus for magnetic detection of flaws |
| 01/01/1991 | US4982087 ICR ion trap |
| 01/01/1991 | US4981652 Flame ionization |
| 01/01/1991 | US4981572 Electrode unit and package for a blood analyzer |
| 01/01/1991 | US4981571 Membrane for barium ion selective electrode |
| 01/01/1991 | US4981570 Ion carrier membrane, and ion sensor having same |
| 01/01/1991 | US4981567 Determination of ph |
| 01/01/1991 | US4981369 Frost and dew sensor |
| 01/01/1991 | US4981125 Output correction method for exhaust gas ingredient-concentration sensors of proportional-output type |
| 01/01/1991 | US4981033 Mapping the burning of a solid rocket fuel |
| 12/30/1990 | WO1991000612A1 Charge sensor and spectrometers incorporating it |
| 12/27/1990 | WO1990015987A1 Thermal technique for bulk fluid movement in capillary electrophoresis |
| 12/27/1990 | EP0404681A1 Electrostatic aerosol detector |
| 12/27/1990 | EP0404646A1 Electrophoretic capillary with incorporated optical system |
| 12/27/1990 | EP0403994A1 Capacitive humidity sensor |
| 12/27/1990 | EP0403819A2 Conductivity probe for use in the presence of high intensity nuclear radiation |
| 12/27/1990 | EP0403766A2 Scanning tunnelling microscope displacement detector |
| 12/27/1990 | EP0403615A1 Process and device for detecting an error status in a lambda probe. |
| 12/27/1990 | EP0403563A1 Ion mobility detector. |
| 12/27/1990 | CA1278355C Method for controlling the amount of moisture associated with a web of moving material |
| 12/27/1990 | CA1278343C Means and method for measuring a multi-phase distribution withina flowing petroleum stream |
| 12/26/1990 | CN2068239U Polarogram compound electrode |
| 12/26/1990 | CN1048100A Slot electrode in spectrum electrochemistry |
| 12/26/1990 | CN1048098A Device for monitoring and/or measuring parameters of running, therad-like or wire-like test material and method for operating device |
| 12/26/1990 | CN1010981B Improvement in an apparatus for rapid dissolution of metal alloy sample for chemical analysis |
| 12/26/1990 | CN1010980B Computerized moisture tester |
| 12/25/1990 | US4980631 Method for measuring the surface area of bodies |
| 12/25/1990 | US4980044 Oxygen sensor having a flat plate element and heater |
| 12/25/1990 | US4980043 Used for measuring ion concentration by controlling quantity of ions diffused from gelatinezed solution |
| 12/25/1990 | US4980042 Oxygen sensor and method of making it |
| 12/25/1990 | US4979393 Process for rapidly determining the solids content in drilling fluids |
| 12/20/1990 | DE4013686A1 Capacitative signal processing circuitry for measuring and regulating - has mixing stage following two relaxation oscillators alternatively blockable via two control leads |
| 12/20/1990 | DE3918684A1 Identification appts. for unknown gaseous substances |
| 12/19/1990 | EP0402917A2 Biosensors employing electrical, optical and mechanical signals |
| 12/19/1990 | EP0402439A1 Ionization-type combustion gas detector |
| 12/19/1990 | EP0192760B1 Ion selective electrode |
| 12/19/1990 | CN2067833U Miniature micro-osmosis copper sulphate reference electrode |
| 12/19/1990 | CN2067832U Quality measurer for frying oil |
| 12/19/1990 | CN1010890B Electrical viscosimeter |
| 12/19/1990 | CN1010859B Electrolysis process and equipment for producing standard hydrogen sulphide |