Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
04/1993
04/07/1993CN2129414Y Humidity-measuring probe
04/07/1993CN1070736A Electrolytic etching of metals to reveal internal quality
04/06/1993US5200706 Apparatus for measuring ionic concentration in two measurement configurations
04/06/1993US5200633 Sensor material for measuring the partial pressure of gases or vapors; and gas sensors
04/06/1993US5200614 For detecting constituents in a gas
04/06/1993US5200613 Mass spectrometry method using supplemental AC voltage signals
04/06/1993US5200150 Preparation of gel-filled separation columns
04/06/1993US5200053 Conductive substrate, laminate film of alternate layers of silver halide and insulating and hydrophobic material
04/06/1993US5200052 Ion concentration analyzer
04/06/1993US5200051 Wholly microfabricated biosensors and process for the manufacture and use thereof
04/06/1993US5200050 Electrophoretic processor and methods
04/06/1993US5200045 Agarose plate press
04/06/1993US5200044 Catalyzing reducing of molecular oxygen, raising oxygen ion potential of aqueous electrolytic solutuion; oxidizing anode and measuring electricla current flow between anode and cathode which is proportional to oxygen content7
04/06/1993US5200027 Forming multilayer structure, photolithography, coating zinc and etching
04/06/1993US5199409 Air/fuel ratio control system for internal combustion engine
04/06/1993US5199295 Feedback controlled gas mixture generator especially for an hygrometer reaction check
04/06/1993CA1315898C Scanning tunneling microscope and surface topographic observation method
04/06/1993CA1315850C Disposable sensor
04/01/1993WO1993006498A1 Process and device for calibrating inspection apparatus for long stretchen-out textile materials
04/01/1993WO1993006477A1 Eddy current flaw detection method and apparatus therefor
04/01/1993WO1993006476A1 Ion mobility spectrometry equipment
04/01/1993WO1993006474A1 Battery with electrochemical tester
04/01/1993WO1993006472A1 Exhaust gas sensor and process for producing the same
04/01/1993WO1993006451A1 Sample introduction system
04/01/1993WO1993006237A1 Analytical method for chemical and biosensor devices formed from electroactive polymer thin films
04/01/1993WO1993005701A1 A dialysis electrode device
04/01/1993WO1993005698A1 Improved two- and three-dimensional autoradiographic imaging utilizing charge coupled devices
04/01/1993DE4231530A1 Carbon di:oxide gas sensor of laminated construction - comprises outer plate with carbon di:oxide gas permeable window, plate for pH-electrode, insulating substrate etc.
04/01/1993DE4228052A1 Exhaust gas sensor for regulation of IC engine - produces differential output from catalyst-coated and uncoated electrode arrays as measure of completeness of combustion.
04/01/1993DE4224218A1 Rapid, low-noise gas sensor of Kelvin probe type - uses probe output signal to measure difference between work functions of probe capacitor plates
04/01/1993DE4132432A1 Measurement probe for determining small-scale electrical conductivity in flowing liquid - has wire-shaped electrodes embedded in insulation inside protective tube with flat, smooth inclined end surface
04/01/1993DE4131826A1 Amperometric sensor e.g. for oxygen sensor - has multi-surface working electrode in electrolyte with each portion of cathode surface smaller than its distance from inside of osmotic membrane
04/01/1993DE4131503A1 Abgassensor und verfahren zu dessen herstellung Exhaust gas sensor and method for its production
03/1993
03/31/1993WO1993007100A1 Use and selection of coating and surface materials to control surface fouling and corrosion using zeta potential measurement
03/31/1993EP0534901A1 Stretching-chamber assembly
03/31/1993EP0534331A1 Method and device for continuous monitoring of gas dissolved in oil
03/31/1993EP0534135A1 Gel electrophoresis cassette
03/31/1993EP0534017A1 Electrophoretic method using an electrophoretic matrix
03/31/1993EP0533991A1 Sensor for determination of oxygen concentration and unburnt fuel in exhaust gases of an internal combustion engine
03/31/1993EP0533909A1 On-line product identification in a chromatography effluent by subtraction.
03/31/1993EP0533682A1 Method and device for detecting substances in an ambient substance, in particular for detecting chemical warfare agents.
03/31/1993CN2129012Y Speed quality testing instrument for liquid luboil
03/31/1993CN1070480A Corrosion monitor installation with corrosion resisting liner equipment
03/31/1993CA2097295A1 Use and selection of coating and surface materials to control surface fouling and corrosion using zeta potential measurement
03/30/1993US5198988 Method of determining optimum operating conditions in an electrochemical detector and electrochemical detector using the method
03/30/1993US5198774 Gas monitoring apparatus
03/30/1993US5198773 Non-intrusive gas-level measurement apparatus
03/30/1993US5198771 Potentiostatic apparatus and methods
03/30/1993US5198765 Method of and apparatus for simultaneously testing a wire rope for multiple defects
03/30/1993US5198749 Single-use disposable molten metal inclusion sensor
03/30/1993US5198667 Method and apparatus for performing scanning tunneling optical absorption spectroscopy
03/30/1993US5198367 Homogeneous amperometric immunoassay
03/30/1993US5198094 Counterflow device to reduce the negative impact of contaminating materials used in moisture sensitive apparatuses or procedures
03/30/1993US5198093 pH and concentration meter
03/30/1993US5198092 Electrochemical measuring cell for determining ammonia or hydrazine in a measuring sample
03/30/1993US5198091 Capillary cartridge for electrophoresis
03/30/1993US5198009 Method of manufacturing glass beads for use in thermionic gas chromatographic detectors
03/30/1993CA1315422C Detection system for chemical analysis of zinc phosphate coating solutions
03/30/1993CA1315405C Method for evaluating relationship between the size of discontinuity indications from non-destructive examination of a turbine rotor, stress applied to the rotor and remaining life of the rotor
03/30/1993CA1315338C Sensitivity and selectivity of ion channels
03/26/1993CA2079020A1 Monitoring of gas dissolved in oil
03/25/1993WO1993006475A1 Electrophoresis with chemically suppressed detection
03/25/1993DE4131177A1 Protective tube for oxygen@ measuring probe - is made of electrically conducting ceramic material and is glued to holder at one end and has spring elastic element between holder and tube
03/24/1993EP0533595A1 Method and device for the non-destructive testing of long, cylindrical, metallic objects
03/24/1993EP0533440A1 Method for inspecting components having complex geometric shapes
03/24/1993EP0533302A1 Sequencing near infrared and infrared fluorescence labeled DNA for detecting using laser diodes
03/24/1993EP0532932A2 Electrochemical measuring cell for detecting and determining gases and vapors, in particular of halogen hydracides
03/24/1993EP0500743A4 Ceramic solid electrolyte based electrochemical oxygen concentrator cell and method of fabrication
03/24/1993CN2128738Y Ultra-thin film infrared thermo-releasing electric detector
03/24/1993CN2128737Y Capacitance-type sensor for moisture content
03/24/1993CN1070283A Method for enhancing sensitivity of gas-sensitive semiconductor component
03/24/1993CA2078733A1 Capacitance monitor for soil moisture
03/23/1993US5196803 Apparatus and method for determining the voltage breakdown and conductivity of particulate material
03/23/1993US5196801 Capacitance-type fuel sensor for sensing methanol in methanol-mixed fuel
03/23/1993US5196799 Method and apparatus for testing a protective barrier material for pinholes and tear strength
03/23/1993US5196699 Chemical ionization mass spectrometry method using notch filter
03/23/1993US5196346 Reagent and method of using same for automatically counting basophilic leukocytes in the blood in resistivity variation measuring apparatus
03/23/1993US5196345 Method for controlling the removal of acidic metal carbonyl hydride from product streams
03/23/1993US5196099 Electrophoretic matrix and electrophoresis using same
03/23/1993US5196096 Polarography
03/23/1993US5196039 Chromatography
03/23/1993US5195529 Sensor for monitoring respiration
03/23/1993US5195358 Apparatus for measuring water-vapor partial pressure
03/23/1993CA1314933C Brine monitor
03/18/1993WO1993005533A1 Mass spectrometry method using supplemental ac voltage signals
03/18/1993WO1993005391A1 Process for inspecting heat exchanger tubes in a heat exchanger
03/18/1993WO1993005390A1 Automated capillary electrophoresis apparatus
03/18/1993WO1993005389A1 Capillary electrophoresis buffer
03/18/1993WO1993005076A1 Fluorophore assisted derivatization analysis of carbohydrates
03/18/1993DE4230354A1 Gel electrophoretic migration unit
03/18/1993DE4130937A1 Mercury@ droplet electrode with magnetic needle valve - has flexible needle with tip centring and armature centring mounting locations
03/18/1993DE4130936A1 Drop-size-adjusting process for mercury electrode - continuously measures electric capacity of interface between electrode and electrolyte
03/18/1993CA2120251A1 Automated capillary electrophoresis apparatus
03/18/1993CA2094244A1 Capillary electrophoresis buffer
03/17/1993EP0532046A1 Atmospheric pressure ionisation mass spectrometer and vacuum device therefor
03/17/1993EP0531994A1 Reaction apparatus for biochemical examination
03/17/1993EP0531745A2 Electrochemical sensor
03/17/1993EP0531614A1 Gas measuring apparatus
03/17/1993EP0531416A1 Method and apparatus for detecting glove adulteration
03/17/1993EP0531295A1 Gas sensors.