Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
04/1984
04/24/1984US4445088 Method and arrangement for evaluating a defect signal by comparing the ratio of maximum signal rise and maximum signal magnitude to a predetermined value
04/24/1984US4445038 Apparatus for simultaneous detection of positive and negative ions in ion mobility spectrometry
04/24/1984US4444892 Analytical device having semiconductive organic polymeric element associated with analyte-binding substance
04/24/1984US4444878 Bispecific antibody determinants
04/24/1984US4444646 Membrane cap assembly for oxygen monitors
04/24/1984US4444645 Measuring apparatus for the analytical determination of a gas partial pressure
04/24/1984US4444644 PH Electrode
04/24/1984US4444172 Internal combustion engine knock sensing system
04/24/1984CA1166298A1 Electrically heatable element
04/24/1984CA1166187A1 Method for determining current efficiency in galvanic baths
04/18/1984EP0105485A2 Apparatus for examining an object by nuclear magnetic resonance
04/18/1984EP0105434A2 Potentiometric analysis instrument
04/18/1984EP0018419B1 Milk inspection apparatus
04/17/1984US4443781 Gas detecting sensor
04/17/1984US4443764 Method for non-destructive detection and characterization of flaws
04/17/1984US4443763 Method and an apparatus for checking polarographic measuring electrodes
04/17/1984US4443759 Magnetizing current supply for magnetic particle inspection with SCR's connected to three-phase secondary windings for rectification and control
04/17/1984US4443754 Method for determining minimum lubricating oil-film thickness under operating engine conditions using electrical capacitance
04/17/1984US4443407 Heat exchangers, cells, detectors, temperature, circuits, controllers, electrodes
04/17/1984US4443319 Device for electrophoresis
04/17/1984CA1165835A1 Conductive fluid detecting method and apparatus
04/17/1984CA1165833A1 Broad spectrum charged electric field polar gas sensing and detection system
04/12/1984WO1984001438A1 Noncontact electrostatic hoop probe for combustion engines
04/12/1984WO1984001431A1 Combustible vapor detection system
04/12/1984WO1984001325A1 Manufacture of corrugated fibreboard
04/10/1984US4442422 Humidity sensitive resistor
04/10/1984US4442421 Semiconducting coordination polymers and electrical applications thereof
04/10/1984US4442420 Partial pressure of oxygen sensor-II
04/10/1984US4442405 Float assembly for a sensor
04/10/1984US4442403 Testing installation for pipes having an internal testing unit driven by the rotation of the pipe
04/10/1984US4442353 High-precision method and apparatus for in-situ continuous measurement of concentrations of gases and volatile products
04/10/1984US4441982 Combustion sensing apparatus
04/10/1984US4441981 Gas sensor
04/10/1984US4441979 Nutating probe for gas analysis
04/10/1984US4441978 Separation of proteins using electrodialysis - isoelectric focusing combination
04/10/1984US4441972 Apparatus for electrofusion of biological particles
04/10/1984US4441968 Method of manufacture of an electric humidity detecting sensing element
04/10/1984US4441362 Method for determining volumetric fractions and flow rates of individual phases within a multi-phase flow regime
04/04/1984EP0104973A1 Apparatus for ionizing a material by high-temperature heating
04/04/1984EP0104935A2 Liquid chromatograph enzyme electrode detector
04/04/1984EP0104655A1 Ultrasonic flaw detector driving apparatus of a trackless type
04/04/1984EP0104636A2 Oxygen sensor and process for producing the same
04/04/1984EP0104501A2 Air-fuel ratio sensor arrangement
04/04/1984EP0104492A2 Remotely operated maintenance and inspection equipment transporter
04/03/1984US4441078 Eddy current apparatus including a probe arm pivoted for movement by centrifugal force for detecting faults in a metal plate
04/03/1984US4441024 Wide range radioactive gas concentration detector
04/03/1984US4440726 Apparatus for electrochemical detection and coulometric titration
04/03/1984US4440638 Surface field-effect device for manipulation of charged species
04/03/1984US4440621 System for detection of air/fuel ratio in IC engine by using oxygen sensor operated with supply of current
04/03/1984US4440620 Having a ph-sensitive membrane on a semiconductor substrate; medical diagnosis
04/03/1984US4440619 Electro-analytical measuring equipment with measuring cell, comprising integral sensing element and several reference electrodes
04/03/1984US4440603 Apparatus and method for measuring dissolved halogens
04/03/1984US4440602 Apparatus and method for measuring the concentration of ions
04/03/1984US4440175 For potentiometric or polarographic response, water insoluble salt of non-ionic species
04/03/1984US4439911 Method of making an oxygen sensor
04/03/1984CA1164946A1 Method of precisely controlling the temperature of an oxygen sensor
04/03/1984CA1164945A1 Titania oxygen sensor with chrome oxide compensator
04/03/1984CA1164944A1 Gas sensor elements and methods of manufacturing them
04/03/1984CA1164943A1 Gas detector
03/1984
03/29/1984WO1984001220A1 Method of measuring moisture content of dielectric materials
03/28/1984EP0104026A1 System for identification of cells by electrophoresis
03/28/1984EP0103965A2 Electrofocusing apparatus
03/28/1984EP0103806A1 Method and apparatus for studying the physical characteristics of a semi-conducting plate
03/28/1984EP0103655A1 Device to determine the properties of magnetic particle dispersions
03/28/1984EP0103599A1 Ion selective measuring electrode device.
03/28/1984EP0103588A1 Device for determining hydrogen flux
03/28/1984EP0103587A1 Humidity measuring apparatus
03/27/1984US4439731 Monitoring of elongate magnetically permeable members
03/27/1984US4439730 Nondestructive inspection apparatus and method utilizing combined inspection signals obtained from orthogonal magnetic fields
03/27/1984US4439526 Clustered ingress apertures for capillary transport devices and method of use
03/27/1984US4439303 Analysis of electrochemical stripping
03/21/1984EP0103169A2 Air fuel ratio sensor
03/21/1984EP0103109A1 Method of determining sugar concentration
03/21/1984EP0103031A1 Electro-chemical cell for determining a particular property or component of a fluid
03/20/1984US4438480 Capacitive hygrometer
03/20/1984US4438399 Eddy current testing device for metal tubes or pipes having a quick release coupling with a bayonet lock
03/20/1984US4437971 Moveable particles keep electrode surface activated
03/20/1984US4437970 Device for determining ionic activity
03/20/1984US4437969 Offset-gate chemical-sensitive field-effect transistors (OG-CHEMFETS) with electrolytically-programmable selectivity
03/20/1984US4437967 Apparatus for electrophoretically fractionating a solution
03/20/1984CA1163825A1 Device for inserting a sensor into the exhaust conduits of an internal combustion engine and a fuel-control system using such a device
03/14/1984EP0102880A1 Electrochemical apparatus for measuring the oxygen content of a gaseous or liquid atmosphere
03/14/1984EP0102661A1 A paper for RNA blotting; a process for making same; applications of the paper
03/13/1984US4437062 Eddy current testing apparatus including a two coil probe having sandwiched windings
03/13/1984US4437058 Indicating means for measuring instrument
03/13/1984US4436699 Carbon filters, detectors
03/13/1984US4436610 Ph value of blood
03/13/1984US4436590 Electrolytic reduction
03/13/1984US4436505 Device for detecting flame in open-type combustor and oxygen density of indoor air
03/13/1984US4436504 Apparatus for monitoring exhaust gases
03/13/1984CA1163718A1 Apparatus and method for image reproduction of materials using their magnetic and electric properties
03/13/1984CA1163695A1 Servosystem operating about noise component error signal
03/13/1984CA1163692A1 Testing coins
03/13/1984CA1163679A1 Method of testing oil for ionic contaminants
03/13/1984CA1163460A1 Immunoassay for antigens
03/07/1984EP0102148A1 An electrophoretic separator
03/07/1984EP0102067A2 CO gas detecting device and circuit for driving the same
03/07/1984EP0102042A2 Ion selective electrode device and ion analyzing apparatus
03/07/1984EP0102033A1 Electrochemical sensor for the transcutaneous measuring of the carbon dioxide partial pressure of a living being
03/07/1984EP0101914A2 Method and apparatus for scanning the surface of an object