Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
10/1987
10/20/1987US4701252 Dissolved gas and ion measuring electrode system
10/20/1987US4700709 Apparatus and method for determining ammonium ion concentration and total ammonia concentration in fluids or tissue
10/20/1987US4700584 Manipulator usable for a glass electrode or the like
10/20/1987US4700560 Calibration cell for calibration of gaseous or non-gaseous fluid constituent sensors
10/20/1987CA1228398A1 Apparatus for determining the activity of an ion (pion) in a liquid
10/15/1987DE3711497A1 Oxygen content measuring cell for industrial furnace flue gases - has reference and measuring chambers on opposite sides of solid electrolyte and thermocouples to measure electrolyte temps. in both chambers
10/14/1987EP0241309A2 Measurement of electroactive species in solution
10/14/1987EP0241013A2 Apparatus for detecting surface microdefects in a metal workpiece
10/14/1987EP0240729A2 Method of analyzing autoradiograph for determining base sequence of nucleic acid
10/14/1987CN86102281A Sno2-thin film gas-sensitive component
10/13/1987US4700134 Method and apparatus for determining the amount of magnetic debris adhering to the exterior of a tube
10/13/1987US4700069 Mass spectrometer of a quadrupole electrode type comprising a divided electrode
10/13/1987US4699851 Heteropolytungstic and molybdic acids containing carbon; molding; electro-conductivity; fuel cell
10/13/1987US4699806 Method of producing fluoride-sensitive diaphragms
10/13/1987US4699706 Method and apparatus for extraction of species from electrophoresis media
10/13/1987US4699705 Water soluble polymers, crosslinking; modifiers
10/13/1987US4699680 Process and apparatus for manufacturing element for electrophoresis
10/13/1987CA1228134A1 Process and apparatus for detection of electrically conducting material
10/08/1987WO1987006009A1 Capacitive chemical sensor for detecting certain analytes, including hydrocarbons in a liquid medium
10/08/1987WO1987006002A1 Capacitive chemical sensor using an ion exchange surface
10/08/1987DE3709941A1 Exhaust gas system of an internal combustion engine with a lambda probe
10/08/1987DE3625607C1 Method for the continuous detection of dissolved and undissolved impurities in highly pure process liquids
10/07/1987EP0239969A2 Potential-causing membrane for immunosensor
10/07/1987EP0239889A2 Method and apparatus for measuring parameters in suspensions
10/07/1987EP0239771A2 Manufacture of long-lasting oxygen electrodes for electrolysis cells containing a solid electrolyte
10/07/1987EP0239624A1 Field-inversion gel electrophoresis.
10/07/1987EP0239613A1 Piezoelectric device for detection of polynucleotide hybridization.
10/07/1987EP0239569A1 Neurological and biological molecular electro-optical devices and method
10/07/1987CN87102346A Protector for process analyzer system
10/06/1987US4698657 FET type sensor and a method for driving the same
10/06/1987US4698586 Electric particle detector for the detection of fire
10/06/1987US4698209 Device for sensing an oxygen concentration in gaseous body with a source of pump current for an oxygen pump element
10/06/1987US4698142 Free-flow electrophoretic separation method and apparatus therefor
10/06/1987US4697463 Method of and means for testing flow properties of magnetic toners
10/06/1987CA1227846A1 Device for detecting cracks in steel slabs leaving continuous casting
10/03/1987CN86202228U Extractor for looking for mineral deposits by means of geoelectro-chemistry
10/01/1987DE3709516A1 Sauerstoffsensor Oxygen sensor
09/1987
09/30/1987EP0239552A2 Conductivity detector
09/30/1987EP0239537A2 Method of and apparatus for testing a wire rope
09/30/1987EP0239297A2 Electrochemical sensors
09/30/1987EP0239296A2 Electrochemical sensing of gases
09/30/1987EP0239251A2 Method and apparatus for monitoring electromagnetic emission levels
09/30/1987EP0239218A2 Apparatus for detecting microorganisms
09/30/1987EP0239190A2 Electrochemical cell and method for detecting hydrides and hydride vapors
09/30/1987EP0239106A2 Process for reducing the N0x content in gases, in which NH3 is continuously added to the gas stream
09/30/1987EP0239085A2 Device for micro-movement of objects
09/30/1987EP0238602A1 Electrophoresis method and apparatus for separating particles in a separation medium.
09/30/1987EP0116094B1 Method for measuring acid concentration
09/29/1987US4697165 Ceramic heater and a method of manufacturing the same
09/29/1987US4697134 Apparatus and method for measuring battery condition
09/29/1987US4696958 Electrophoretic technique for separation of lipoproteins and electrophoretic gel for use therein
09/29/1987US4696796 Moisture sensor
09/29/1987US4696337 Apparatus for anticipation of structure of casting alloys and particularly the degree of spheroidization of cast iron
09/29/1987US4696184 Device for measuring the absolute value of the density of salts in atmosphere
09/29/1987US4696183 Method and apparatus of flow analysis
09/29/1987US4696103 Method of making a rotating disk electrode
09/29/1987CA1227539A1 Oxygen sensor
09/29/1987CA1227384A1 Antimony-doped stannic oxide thick film gas sensor
09/29/1987CA1227357A1 Method and apparatus for detecting presence and concentration of vapours in gaseous fluids
09/24/1987WO1987005747A1 Ambient sensing transcucer devices with isolation
09/24/1987WO1987005624A1 Biochemical detector
09/23/1987EP0238278A1 Electrochemical device
09/23/1987EP0238209A2 Magnetic discontinuity detection
09/23/1987EP0238081A1 Thick-film gas-sensitive element
09/23/1987EP0238054A2 Molten metal gas analysis apparatus
09/23/1987EP0238035A2 Electrophoretic display particles and a process for their preparation
09/23/1987EP0237914A2 Method of producing electrochemical gas sensors
09/23/1987EP0237879A2 Locking ring for stretching and fixing a membrane over the measuring surface of a measuring head
09/23/1987EP0237563A1 Apparatus for inspection and/or positioning objects with wave energy using wave guides
09/23/1987EP0237540A1 Electromagnetic inspection probe
09/22/1987US4695724 AC-modulation quadrupole mass spectrometer
09/22/1987US4695548 Gel inserts useful in electrophoresis
09/22/1987US4695432 Nitrides and oxynitrides which can be used as selective detectors of reducing gases in the atmosphere, and detection device containing them
09/22/1987US4695362 Acid or acid salt wash of a metal chloride layer of an ion selective electrode
09/22/1987US4695361 Oxygen sensor
09/22/1987US4695360 Device for electrochemical-etching determination of corrosion resistance of metals
09/22/1987US4695354 Crosslinked polyacrylamide, glycerol
09/22/1987US4694834 Gas sensor
09/22/1987US4694809 Method and system for internal combustion engine oxygen sensor heating control with time smoothing
09/22/1987CA1227247A1 Liquid conductivity measuring circuit
09/22/1987CA1227245A1 Technique for monitoring the oxidation/reduction potential characteristics of a steam environment
09/22/1987CA1227244A1 Method and apparatus for electro-chemical detection
09/22/1987CA1227243A1 Method for the quantitative determination of calcium in biological fluids through direct potentiometry
09/17/1987DE3700256A1 Semiconductor gas sensor
09/16/1987EP0237277A2 Gas sensitive device
09/16/1987EP0237268A2 Method of mass analysing a sample
09/16/1987EP0237259A2 Mass spectrometer
09/16/1987EP0237017A2 Electric-electronic device including polyimide thin film
09/16/1987EP0236875A2 Process for determining the activity of a palladium-tin catalyst
09/16/1987EP0236441A1 In-stream gas sensor
09/15/1987US4694247 Method and apparatus including a cushion of pulverulent magnetic material for stray field magnetic testing of ferromagnetic parts
09/15/1987US4694169 Mass spectrometer
09/15/1987US4694168 Time-of-flight mass spectrometer
09/15/1987US4693953 Method for production of moisture sensitive element
09/15/1987US4693804 Gel migration
09/15/1987US4693790 Method for monitoring the quality of ZnSO4 electrolyte containing Sb (V)
09/15/1987EP0221116A4 Molecular weight determination of proteins.
09/15/1987CA1226901A1 Electromagnetic inspection system for ferromagnetic tubes
09/15/1987CA1226899A1 Electrochemical measuring cell
09/15/1987CA1226898A1 Method and apparatus for measuring soil salinity