Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
03/1984
03/07/1984EP0101859A2 Apparatus for preparative gel electrophoresis, in particular for separating mixtures on a gradient gel polyacryl amide column
03/07/1984EP0101687A1 Ion-selective electrode and method for making same
03/06/1984US4435681 Bipolar ionic current probe unit and method for measuring positive and negative current densities by means of the same probe unit
03/06/1984US4435268 Membrane immovable in relation to cathode
03/06/1984US4435074 Cleaning apparatus for electrophotography comprising lubricant film applicator means
03/06/1984US4434659 Two-dimensional scanner apparatus
03/06/1984US4434650 For use in detecting the presence of foreign substances in a liquid
03/06/1984EP0084036A4 Liquid contamination detection method and device.
02/1984
02/29/1984EP0101669A2 Measuring device using a temperature-compensated piezoelectric resonator
02/29/1984EP0101478A1 Procedure for accomplishing liquid contact at slow liquid flow.
02/28/1984US4434428 Deflection detector for ink jet printing apparatus
02/28/1984US4434249 Anionic and cationic polymers
02/28/1984US4434233 Electroconductibity determinbation on aqueous extract
02/28/1984US4434232 Measuring vessels analysis utilizing fixed enzyme
02/28/1984CA1162987A1 Method and means for detecting magnetic deposits in heat exchanger and the like
02/22/1984EP0101249A2 Gas sensor
02/22/1984EP0101236A2 A potentiometric analysis system and method of using such system to analyse blood
02/22/1984EP0101114A1 An apparatus for detecting deposition of ice or the like
02/22/1984EP0101090A2 Probe without external power source for determining the content of dissociable polar liquids
02/22/1984EP0100988A1 Reference electrode
02/22/1984EP0100814A1 Method and apparatus for measuring total corrosion rate
02/22/1984EP0100813A1 Multielectrode probe and circuitry
02/22/1984EP0100791A1 A novel dropping mercury electrode capable of automatic control
02/21/1984US4433320 Dew sensor
02/21/1984US4433319 Thin film of tantalum oxide with two electrodes
02/21/1984US4433299 Method and apparatus for measuring interfacial electrokinetic phenomena
02/21/1984US4433289 With fluorescent pigment
02/21/1984US4433286 Identification of materials using their complex dielectric response
02/21/1984US4433151 Oxy benzoic acid terminated polyether derivatives of 8-hydroxy quinolines
02/21/1984US4432849 Method and apparatus for separating macromolecules or particles in a liquid solution
02/21/1984US4432366 For use in potentiometric electroanalysis in body fluids
02/21/1984US4432226 Method and apparatus for measuring gaseous oxygen
02/21/1984US4432224 Hydrogen sulfide measuring systems and the like
02/21/1984CA1162608A1 Electrochemical sensors
02/21/1984CA1162517A1 Thermostatic plate for an electrophoresis apparatus
02/21/1984CA1162416A1 Ion analysis method and apparatus
02/16/1984WO1984000612A1 Method for measuring acid or alkali concentration
02/16/1984WO1984000564A1 Control process of the heat treatment of aluminium alloy strip
02/15/1984EP0100667A1 Solid state transcutaneous blood gas sensors
02/15/1984EP0100661A2 Moisture sensor and a process for the production thereof
02/15/1984EP0100525A2 Alignment assembly
02/15/1984EP0100463A1 Electrochemical measuring electrode device for simultaneously measuring the partial pressures of two gasses
02/14/1984US4431962 Capacitor monitoring by single resistor adjustment
02/14/1984US4431961 Turnable electrode
02/14/1984US4431919 Detection apparatus, particularly for use in liquid chromatography
02/14/1984US4431508 With hydrophobic coating
02/14/1984US4431507 Enzyme electrode
02/14/1984US4431506 Apparatus for gel electrophoresis
02/14/1984CA1162242A1 Apparatus for analysis of combustible substances
02/14/1984CA1162241A1 Water purity measurement
02/08/1984EP0100235A2 Liquid transport device
02/08/1984EP0100107A2 Adsorbent fractionator with automatic cycle control and process
02/08/1984EP0100009A1 Device for non destructive measuring of the case hardening depth of a material
02/07/1984US4430615 Reflection type probes for eddy current testing instruments
02/07/1984US4430614 Eddy current bearing ball flaw detector
02/07/1984US4430192 Leads made from platinum powder
02/07/1984US4430164 Fault-compensating electro-analytical measuring process and equipment
02/07/1984US4429996 Process of fractionating electrophoretogram signals
02/07/1984CA1161789A1 Solution cracking through electrophoresis
02/02/1984WO1984000464A1 Method of mounting electronic part
02/02/1984WO1984000419A1 Method for determining the bio- and/or techno-synthetic origins of organic substances and means for the implementation thereof
02/01/1984EP0099810A1 Process for determining the biological and/or techno-synthetic origins of organic substances, and device for carrying it out
02/01/1984EP0099776A1 Ionisation level detector of an electric arc controlled gaseous environment
02/01/1984EP0099591A2 Adsorbent fractionator with automatic cycle control and process
02/01/1984EP0099590A2 Adsorbent fractionator with automatic cycle control and process
02/01/1984EP0099589A2 Adsorbent fractionator with automatic cycle control and process
01/1984
01/31/1984US4429343 Humidity sensing element
01/31/1984US4429273 Oil-water monitor
01/31/1984US4429272 Apparatus for indicating dielectric constant
01/31/1984US4428909 Environmental condition sensor
01/31/1984US4428817 Sensor cell structure for oxygen-combustibles gas mixture sensor
01/31/1984US4428800 Measurement of gaseous fluoride concentration using an internal reference solution
01/31/1984US4428782 To achieve uniform electroconductivity across width
01/31/1984US4428770 Methods of manufacturing metal from a melt, determination of sulfur and carbon therein, sensors therefor and solid electrolyte compositions for said sensors
01/31/1984CA1161524A1 Closed loop air/fuel ratio control system with oxygen sensor signal compensation
01/25/1984EP0099253A2 Micro electrodes and the production thereof
01/24/1984US4427976 Moisture sensor
01/24/1984US4427945 Molded conductivity cell body
01/24/1984US4427940 Electromagnetic inspecting apparatus for magnetizable wire rope
01/24/1984US4427772 Apparatus having automatic calibration for determining hydrogen peroxide concentration
01/24/1984US4427525 Separation of monitoring and calibration gases
01/24/1984US4427496 Method for improving the inspection of printed circuit boards
01/24/1984US4427483 Microelectrode fabricting apparatus
01/24/1984US4427294 Apparatus for densitometric measurement of proteic fractions separated by electrophoresis
01/24/1984US4426987 Method and apparatus for controlling the composition of the combustible mixture of an engine
01/24/1984CA1161116A1 Electromagnetic noncontacting measuring apparatus
01/24/1984CA1161114A1 Non-destructive testing method and apparatus for spot welds
01/24/1984CA1161113A1 Geophysical surveying method
01/17/1984US4426621 Detection circuitry for electrochemical analysis
01/17/1984US4425918 Membrane retainer arrangement for physiological sensing units
01/17/1984CA1160687A1 Conductivity cell
01/17/1984CA1160686A1 Oxygen concentration detector
01/17/1984CA1160685A1 Oxygen concentration detector
01/17/1984CA1160684A1 Oxygen concentration detector
01/17/1984CA1160683A1 Technique for monitoring so.sub.3, h.sub.2so.sub.4 in exhaust gases containing so.sub.2
01/11/1984EP0097960A2 Bis-crown-ether derivatives and their use
01/11/1984EP0097827A2 Purity control by measuring electrical conductivity
01/11/1984EP0097770A2 Oxygen gas permselective membrane
01/10/1984US4425545 Eddy current probe calibration standard
01/10/1984US4425296 Probe-holding apparatus for holding a probe for checking steam generator tubes particularly in a nuclear reactor installation