Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
09/1989
09/19/1989US4868491 Apparatus for monitoring the moisture content of hay as it is being formed into a bale
09/19/1989US4868386 Method and apparatus for measuring radon content in the air
09/19/1989US4868127 Instrument for measurement of the organic carbon content of water
09/19/1989US4867947 Endless belts
09/19/1989US4867860 Method of manufacturing ion-selective electrodes for analyzing selected ions in solution
09/19/1989US4867855 Method and apparatus for separating complex mixtures of bio-organic materials
09/19/1989CA1259710A1 Kinematic arrangement for the micro-movements of objects
09/19/1989CA1259709A1 Apparatus and method for applying a dissolved sample from a liquid chromatograph to a chemical ionization mass spectrometer
09/19/1989CA1259657A1 Complete glucose monitoring system with an implantable, telemetered sensor module
09/13/1989EP0332125A2 Controlled-growth mercury drop electrode
09/13/1989EP0332110A2 Method for measurement of viscosity change in blood or blood plasma and sensor therefor
09/13/1989EP0332048A2 Multiple coil eddy current probe and method of flaw detection
09/13/1989EP0331696A1 Noise reduction technique for electrochemical cells
09/13/1989CN2044349U High stable ionic or biologic tester
09/12/1989US4866383 Method and apparatus having load cell responsive to movement of a magnetic field generator for differentiating between materials
09/12/1989US4866278 Gas chromatography
09/12/1989US4866270 Method and apparatus for the determination of isotopic composition
09/12/1989US4866267 Double-focusing mass spectrometer having Wien filter and MS/MS instrument using such spectrometer
09/12/1989US4865995 Method for measuring a concentration of saccharides having a low molecular weight and sensor for measuring the same
09/12/1989US4865717 Electrochemical micro sensor
09/12/1989US4865716 Sensor arrangements
09/12/1989US4865715 Electrophoresis device with near-vertical gel plates
09/12/1989US4865714 Electrophoretic gel cooled cell
09/12/1989US4865707 Hydrophilic polymer within crosslinking polymer gel filling
09/12/1989US4865706 High performance microcapillary gel electrophoresis
09/12/1989US4865698 Reference solution for measuring ionic activity
09/12/1989US4865090 Vial holder
09/12/1989US4864850 Method and apparatus for continuously monitoring the moisture content of a material
09/12/1989CA1259374A1 Capacitive sensor for chemical analysis and measurement
09/08/1989WO1989008250A1 Automated eddy current metal hardness measurement system
09/08/1989WO1989008249A1 Electrochemical gas sensor
09/08/1989WO1989008100A1 Polyacrylamide gels for improved detection of proteins
09/08/1989WO1989007259A3 Integrated scanning tunneling microscope
09/08/1989WO1989007258A3 Integrated scanning tunneling microscope
09/07/1989DE3906885A1 Image generating device
09/06/1989EP0331513A2 Oxygen sensor and method of producing the same
09/06/1989EP0331148A2 Microscope apparatus
09/06/1989EP0331050A2 Oxygen concentration-detecting apparatus
09/06/1989EP0330897A2 Apparatus for determining base sequence of nucleic acid
09/06/1989EP0330775A1 Oxygen-sensing element
09/06/1989EP0176544B1 Investigation of condition of biological particles
09/06/1989CN2044072U Oscillograph polarographi electrolyzzer signal amplifier
09/06/1989CN2044071U Quiver-proof alcohol sensitive current breaker
09/06/1989CN1035358A Method of analyzing chromatograph of organic compounds and opparatus for performing this method
09/05/1989US4864462 Capacitive gas detector having a solid rare earth fluoride dielectric
09/05/1989US4864239 Cylindrical bearing inspection
09/05/1989US4864236 Wire inhomogeneity detector having a core with opposing pole pieces and guide pieces adjacent the opposing pole pieces
09/05/1989US4864235 Phase-selective monitoring via vector transformation
09/05/1989US4864234 Transducers and method for making same
09/05/1989US4864233 Magnetic detection of air gaps formed at breaks in conveyor belt cards
09/05/1989US4864229 Method and apparatus for testing chemical and ionic sensors
09/05/1989US4863873 Method for biological testing and/or developing pharmaceuticals for treatment of disorders
09/05/1989US4863813 Primary source of electrical energy using a mixture of fuel and oxidizer
09/05/1989US4863647 Process for preparation of electrophoresis gel material
09/05/1989US4863584 Apparatus for sensing air-fuel ratio
09/05/1989US4863583 Electrode structure of an oxygen sensing element
09/05/1989US4863582 Process and apparatus for purifying and concentrating DNA from crude mixtures containing DNA
09/05/1989US4863574 Method of manufacturing a film of polyparaphenylene and applications of the resulting polyparaphenylene film
09/05/1989US4863491 Interface for liquid chromatography-mass spectrometry systems
09/05/1989US4863039 Apparatus and method for handling a flexible disk for testing
09/04/1989EP0281555A4 Composite electrodes for use in solid electrolyte devices.
08/1989
08/31/1989DE3820405A1 Measured value transmitter device
08/30/1989EP0330460A2 Polyacrylamide gels for improved detection of proteins
08/30/1989EP0330377A2 A moisture-sensing hygrometric element, and a method for its manufacture
08/30/1989EP0330249A2 Solid-state sensor for determining the concentration of hydrogen with a solid-state reference electrode and method for producing such a sensor
08/30/1989EP0330248A2 Solid-state sensor for determining the concentration of a gas
08/30/1989EP0330120A2 Fluorescence detection type electrophoresis apparatus
08/30/1989EP0329894A2 Low resistance fuel electrodes
08/30/1989EP0329781A1 Magnetic bridge devices
08/30/1989CN2043757U 裂纹监测器 Crack Monitor
08/30/1989CN1035207A Sensitive element of combustible gas
08/29/1989US4862146 Detection apparatus
08/29/1989US4862092 Apparatus and method for in vitro detection of abnormal tissues
08/29/1989US4862088 Remote locating of a structure and remote measurement of conditions therein
08/29/1989US4862066 Electrical conductors separated by porous stretched polytetra-fluoroethylene containing carbon particles; durability
08/29/1989US4862065 On-line web internal resistivity measuring apparatus
08/29/1989US4862062 Glass container inspection machine
08/29/1989US4862060 Microwave apparatus for measuring fluid mixtures
08/29/1989US4861557 Combustible gas detector through use of reaction control block
08/29/1989US4861456 Electrochemical device
08/29/1989US4861455 Electrode membrane
08/29/1989US4861454 Oxygen sensor
08/29/1989US4861453 Corrosion detecting probe for steel buried in concrete
08/29/1989US4861448 Electrophoretic methods employing gel inserts
08/29/1989US4861411 Slots for loading samples
08/29/1989US4861167 Line-heat-source thermal conductivity measuring system
08/29/1989US4860712 Method of controlling an oxygen concentration sensor
08/29/1989US4860603 Convection cooling probe mounting jacket
08/29/1989US4860584 Composite moisture sensing apparatus and method
08/29/1989US4860574 Paramagnetic oxygen analyzer
08/24/1989WO1989007758A1 Reference electrode
08/24/1989WO1989007755A1 Method and system for measuring the corrosion properties of specimens
08/24/1989DE3804486A1 Transformation element for an arrangement to measure the concentrations in gas and material mixtures by using sensor elements with non-linear characteristic curves
08/23/1989EP0329458A2 Method and apparatus for the measurement of analyte substances
08/23/1989EP0329436A2 Moisture and dew-detection sensor
08/23/1989EP0329341A2 Capillary electrophoresis
08/23/1989EP0329322A2 Sensing of vapours
08/23/1989EP0328640A1 Combustible gas sensor
08/23/1989EP0328579A1 High resolution electrophoretic gel and method for separating serum proteins
08/23/1989CN2043361U Mineral thermoelectric potential measuring device