Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
06/1992
06/02/1992US5118403 Glassy carbon linear array electrode
06/02/1992US5118398 Method and an apparatus for detecting ionizable substance
06/02/1992US5117691 Heated element velocimeter
06/02/1992US5117680 Method and control circuit for measuring trace constituents in automotive engine exhaust
06/02/1992CA1302499C Gas sensing element, assembly, and apparatus
05/1992
05/31/1992WO1992010760A1 Methods for the diagnosis of chronic lower back and cervical pain
05/31/1992CA2097426A1 Method for the diagnosis of chronic lower back and cervical pain
05/31/1992CA2053049A1 Process for the preparation of a gas sensor
05/30/1992CA2044420A1 Water cut monitoring means and method
05/29/1992WO1992008969A1 Apparatus and method for submerged gel electrophoresis
05/27/1992EP0487302A2 Method for testing electrical properties of silicon single crystal
05/27/1992EP0487300A1 Scanning probe microscopy
05/27/1992EP0487253A1 Apparatus for inspecting a tube plug
05/27/1992EP0486580A1 Process and device for separating and detecting constituents of a mixture of substances by temperature gradient gel electrophoresis.
05/27/1992EP0486521A1 Blotting methods using polyaldehyde activated membranes
05/27/1992DE4037930A1 Physical characterisation of magnetic liqs. - by measuring magnetic polarisation, susceptibility and kinetic viscosity under different conditions
05/27/1992DE4037528A1 Metal oxide hybrid gas sensor with close tolerancing or parameters - made on a thin alumina substrate on which platinum@ electrodes, heater and temp. sensor are formed and a passivation and active layer deposited
05/27/1992DE4037479A1 Phthalocyanine sensor for nitrogen oxide detection - has heating phase constantly superseding measurement phase, when sensor resistor exceeds or falls below the predetermined value
05/27/1992DE4035714A1 Dipole moment and/or concn. measurement - by capacitive measurement of dielectric constant in presence of charge carrier
05/27/1992CN2105770U Moisture sensitive transistor elements
05/27/1992CN2105688U Express-analysis device for free calcium oxide content in cement chamotte
05/27/1992CN1016813B Method of distinguishing quickly seeds purity
05/27/1992CN1016812B Micro particle analyzer for injection solution
05/26/1992US5117370 Quantitative analysis of aqueous phosphate conversion coating bath by purifying; determining concentrations of zinc, phosphate and nitrite ions; determining pH
05/26/1992US5117190 Electrostatic detector of aerosol particles
05/26/1992US5117185 Transformer-coupled transducer
05/26/1992US5117184 Magnetic remanence method and apparatus to test materials for embrittlement
05/26/1992US5117182 Ferromagnetic eddy current probe having multiple levels of magnetization
05/26/1992US5117109 Exchange method of mobile phase in high-performance liquid chromatography mass spectrometry and its apparatus
05/26/1992US5117107 Mass spectrometer
05/26/1992US5116483 Having teeth attached to one another each having a length, width and height; biological interactions, heparin
05/26/1992US5116481 High polymer material and a plasticizer; quaternary ammonium or phoshonium salts; body fluids analysis
05/26/1992US5116471 Extraction of buffer, measurement of current flow
05/26/1992US5116462 Cantilever beam; coating, masking, etching
05/26/1992CA1301479C Detection apparatus for gases, incorporating a diffusion measurement chamber that can be closed off from the sample chamber during the measuring process
05/21/1992DE4037044A1 Oxygen@ sensor detecting percentage concn. - has diffusion retarding layer of oxide ion conductive material and measuring electrode covered by layer impervious to oxygen@
05/20/1992EP0486179A2 Gas diffusion control assembly
05/20/1992EP0486118A1 Method for detecting cobalamin and folic acid deficiency
05/20/1992EP0486057A2 Permanent reference electrode for monitoring the electrochemical potential of metal structures in concrete and soil
05/20/1992EP0485874A2 Transducer for immunosensor and its method of production
05/20/1992EP0485584A1 Process for inspectung coated metal surfaces
05/20/1992EP0485510A1 High gel strength and low electroendosmosis agarose
05/20/1992EP0434792A4 Multiply charged ions and a method for determining the molecular weight of large molecules
05/20/1992CN2105067U Magnetic flaw detector rack
05/20/1992CN2105066U Permanent stop final deteotor
05/20/1992CN2105065U In-line continuous oxygen detector for liquid tin
05/20/1992CN1061287A Detecting and controlling system of oxidated asphalt softening point penetration
05/20/1992CN1061286A Pile-measuring apparatus with device capable of synchronously amplifying signal with time function
05/20/1992CN1016735B Miniature coulomb titrimeter for measuring nitrogen content
05/19/1992US5115200 Method and apparatus for testing the impedance of two electrically conducting members using two pairs of electrodes in which the spacing of the pairs is adjustable and the electrodes are independently axially slidable
05/19/1992US5115196 Girth weld detection system for pipeline survey pig
05/19/1992US5115131 Microelectrospray method and apparatus
05/19/1992US5114859 Method for measuring a characteristic in a sample fluid
05/19/1992US5114768 Electrophoretic protein separation
05/19/1992US5114677 Ionization chamber with radioactive material
05/19/1992US5114674 Biochemically active layer comprising an antigen or an antibody
05/19/1992US5114561 Oxygen probe assembly
05/19/1992US5114555 Separation of proteins with membranes in a multicompartment apparatus
05/19/1992US5114551 Multi-point detection method for electrophoresis and chromatography in capillaries
05/19/1992US5114550 Method for the production of gel filled capillaries for capillary gel electrophoresis
05/19/1992US5114425 Method and apparatus for detecting actual or likely adulteration of critical use gloves
05/19/1992CA1301250C2 Photoresponsive detection and discrimination
05/19/1992CA1301102C Method and apparatus for use in biological testing
05/17/1992WO1992008991A1 Measuring instrument for determining the alcohol content of a mixture
05/17/1992CA2096332A1 Measuring instrument for determining the alcohol content of a mixture
05/17/1992CA2054104A1 Permanent reference electrode for monitoring the electrochemical potential of metal structures in concrete and soil
05/15/1992CA2055117A1 Immunosensory transducer
05/14/1992WO1992008956A1 Apparatus for measuring physical properties of fluids
05/14/1992WO1992008142A1 Apparatus and method for measuring wood grain angle
05/14/1992WO1992008127A1 Gas measurement probe, especially for determining the oxygen content in internal combustion engine exhaust gases
05/14/1992WO1992008126A1 Sensor for measuring the mixing ratio of fluids
05/14/1992DE4039157C1 Rapid water analysis detection and determn. method - comprises extracting cations on immobilised organic liq. membrane, sepg., treating with acid, and identifying cations using cation-specific indicators
05/14/1992DE4036115A1 Non-resonant photo ionisation of neutral particles within gas - using laser emission with intensity above saturation level of particles for ionisation
05/14/1992DE4035371A1 Integrated temp. and humidity sensor - comprises resistor-track and capacitive humidity sensor on same substrate in close proximity for improved accuracy
05/14/1992CA2073688A1 Apparatus for measuring physical properties of fluids_
05/13/1992EP0485370A2 Laser-excitation fluorescence detection electrokinetic separation
05/13/1992EP0485085A2 Oxide modified air electrode surface for high temperature electrochemical cells
05/13/1992EP0484864A2 Method for supplying reagent for electrophoresis and thin layer reagent supplier for electrophoresis
05/13/1992EP0484645A1 Methods and systems for fluid identification and flow rate determination
05/13/1992EP0484569A1 Apparatus for measuring sulphur hexafluoride decomposition products
05/13/1992EP0263125B1 Biochemical detector
05/13/1992CN1061096A Multi-purpose quick detector for grain
05/13/1992CA2055008A1 Gas diffusion control assembly
05/12/1992US5113076 Two terminal multi-band infrared radiation detector
05/12/1992US5112471 Ion selective electrode
05/12/1992US5112470 Electrophoresis apparatus
05/12/1992US5112461 Geltrans, a device for transfer of gel to paper
05/12/1992US5112460 High performance microcapillary gel electrophoresis
05/12/1992US5112459 Apparatus and method for transfer of macromolecules
05/12/1992US5112456 Electrochemical sensors and methods for their use
05/12/1992US5112455 Method for analytically utilizing microfabricated sensors during wet-up
05/12/1992US5112454 Ion concentration-measuring method
05/12/1992US5112134 Single source multi-site photometric measurement system
05/12/1992US5111792 Apparatus for controlling heater for oxygen sensor and fuel control apparatus using the same
05/12/1992CA1300683C Pulsed coulometric detection with automatic rejection of background signal in surface-oxide catalyzed anodic detections at gold electrodes in flow-through cells
05/12/1992CA1300682C Apparatus for measuring the gas, vapour or aerosol components of a test gas
05/12/1992CA1300681C Electrode unit and package for a blood analyzer
05/12/1992CA1300339C Apparatus and method for controlling sand moisture
05/08/1992CA2054797A1 Electro-magnetic testing of wire ropes
05/06/1992EP0484229A1 Probe with a rotating controle head for testing curved pipes