Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
09/1978
09/26/1978US4116795 Sensor device
09/26/1978US4116637 Blood serum applicator
09/26/1978US4116565 Electrophoretic analyzer with automatic reference circuit
09/26/1978US4116045 Oil detector
09/26/1978US4116042 Method and apparatus for detecting a constituent in an atmosphere
09/26/1978CA1039358A1 Coulometric detector
09/26/1978CA1039163A1 Urea analysis
09/19/1978US4115235 Apparatus for conveying a gas sample through an analyzer chamber
09/19/1978US4115230 Partial oxygen measurement system
09/19/1978US4115209 Polymeric matrix, conductive substrate
09/19/1978CA1038931A1 Direct-reading moisture meter with temperature compensator
09/12/1978US4114090 Electronic moisture meter
09/12/1978US4114088 Atmospheric ion density measurement
09/12/1978US4113596 Method of measuring the mobility of colloids in an electrical field
09/12/1978US4112744 Apparatus for detecting water in oil
09/12/1978CA1038271A1 Biological testing device
09/12/1978CA1038242A1 Apparatus for non-destructive testing of metal blanks for surface defects
09/05/1978US4112356 Semiconductor gas detector circuit
09/05/1978US4112353 Method for testing dielectric adequacy and for indicating physical defects in a nonconducting material by depositing traces of carbon on the material
09/05/1978US4112352 Electrochemical reference cell with improved liquid junction
09/05/1978US4112302 Gas monitor
09/05/1978US4112297 Interface for use in a combined liquid chromatography - mass spectrometry system
09/05/1978US4111785 Apparatus for preparative electrophoresis
09/05/1978US4111784 Apparatus for electrophoresis
09/05/1978US4111778 Protection assembly and ground for gas constituent sensor
09/05/1978US4111777 Ion-sensitive electrodes
09/05/1978US4111776 Coulometric
09/05/1978US4111658 Catalytic gas detectors
09/05/1978US4111036 Piezoelectric probe for detection and measurement of gaseous pollutants
09/05/1978US4111034 Apparatus for monitoring the solvent content of air
09/05/1978CA1038055A1 Coin arrival sensor using inductive colls
09/05/1978CA1038037A1 Magnetic testing device for detecting defects in elongated objects
09/05/1978CA1038034A1 Measuring cell for determining oxygen concentrations in a gas mixture
08/1978
08/29/1978US4110688 Method and apparatus for pipe joint locator, counter and displacement calculator
08/29/1978US4110613 Magnetic tape type sensors, method and apparatus using such magnetic tape sensors
08/29/1978US4110236 Nondestructive magnetic recording medium
08/29/1978US4109645 Development of instruments measuring body resistance to ion and ionophoresis applications
08/29/1978US4109510 Fluid measuring apparatus
08/29/1978US4109508 Method of detecting a surface flaw of metallic material
08/29/1978CA1037561A1 System for automatically and continuously measuring zinc and sulfuric acid concentration in circulating electrolyte
08/22/1978US4109201 Measuring bridge for an inspection or checking device by means of eddy currents
08/22/1978US4108004 Self-propelled pipe inspecting apparatus
08/22/1978CA1037120A1 Moisture measurement apparatus
08/22/1978CA1036835A1 Gas sampling analysing system
08/15/1978US4107672 Apparatus and method for detecting cracks in the heat-insulating lining of a container for cold liquids
08/15/1978US4107605 Eddy current flaw detector utilizing plural sets of four planar coils, with the plural sets disposed in a common bridge
08/15/1978US4107599 Electrode for an impedance measuring apparatus
08/15/1978US4107027 Device for continuous electrophoresis in a carrier free buffer current
08/15/1978US4107019 Metal and its oxide as oxygen source and resistive metal as heater - intake or exhaust system
08/15/1978US4107018 Magnesium and/or calcium oxide and conductive catalyst - catalytic exhaust system
08/15/1978US4107017 Measure of protection against electrochemical corrosion
08/15/1978US4107014 Colored proteins
08/15/1978US4106995 Microorganism growth inhibitor device
08/15/1978CA1036538A1 Electric surface area meter
08/08/1978US4105972 Pipeline inspection vehicle for detecting defects in pipeline walls
08/08/1978US4105971 Permeability responsive oscillator for detecting phase transformations at various cooling rates
08/08/1978US4105969 Galvanometer mechanism mounted on printed circuit board having plug portion for insertion into control console receptacle
08/08/1978US4105525 Internal standard electrolyte for ammonia sensor
08/08/1978US4105524 Oxygen concentration sensor for heated gaseous mixture
08/08/1978US4105521 Clinical procedure for measuring lipoprotein cholesterols
08/08/1978US4105509 Combination measuring and reference potential electrode and method of measuring ph in samples subject to large voltage gradients
08/08/1978US4105508 Method and device for analysis of a mixture of hydrochloric acid and organochlorine compounds contained in gases derived in particular from the incineration of organochlorine compounds
08/08/1978US4105507 Method and system for instantaneously determining the oxygen activity in molten metals
08/01/1978US4104619 Smoke detector
08/01/1978US4104579 Method of examination of protective coatings
08/01/1978US4104028 Method of titrating liquor
07/1978
07/25/1978US4103227 Ion-controlled diode
07/25/1978US4103226 Apparatus for gauging the texture of a conducting surface
07/25/1978US4103224 Micro-wave hygrometer
07/25/1978US4102990 Electrophoretic assay for antigen-antibody reaction based on particle-particle coupling
07/25/1978US4102769 Corrosion probe
07/25/1978US4102648 Activated carbon adsorber, flame ionization detector
07/18/1978USRE29703 Non-invasively measuring arterial oxygen tension
07/18/1978US4101832 Multiprobe eddy current flaw detection device with means to raise and lower the individual probes
07/18/1978US4101828 Corrosion detector
07/18/1978US4101404 Hot gas measuring device
07/18/1978US4101403 Sensor for detecting variation in oxygen concentration in gas
07/18/1978US4101401 Fluid isolation electrophoresis apparatus and method
07/18/1978US4101278 Ionization detector utilizing tritiated scandium with an acceptable tritium emanation rate at high temperature
07/18/1978US4101220 Laser Doppler spectroscopy with smoothened spectra line shapes
07/11/1978US4100442 Electrically driven oscillating capacitor device
07/11/1978US4100088 Ferrofluid, metal flakes
07/11/1978US4100048 Polarographic cell
07/11/1978US4099922 Gas component detection apparatus
07/11/1978US4099406 Device for automatically testing fluid absorption rates of soil
07/04/1978US4099118 Electronic wall stud sensor
07/04/1978US4099117 Method and apparatus for measuring the quality of insulation on a buried pipeline and the quantity of metal oxide present at breaks in the insulation
07/04/1978US4099052 Mass spectrometer beam monitor
07/04/1978US4098653 Oxygen sensor having protective hood and method of using same
07/04/1978US4098651 Continuous measurement of electrolyte parameters in a cell for the electrolysis of a molten charge
07/04/1978US4098650 Measuring ratios of oxygen partial pressures, using electrochemical cell
07/04/1978US4098126 Non-destructive testing of pipeline
07/04/1978US4098112 Steam turbine expansion joint with probe for monitoring molten caustics
06/1978
06/27/1978US4097921 Method and apparatus for automatically determining the dilution curve of a solution, particularly the oxygen dissociation curve of blood or hemoglobin solutions
06/27/1978US4097795 Elastomer belt impregnated with carbon for testing dielectric adequacy and for indicating physical defects in a nonconducting material
06/27/1978US4097353 Heat and chemical resistance, for use in combustion engines
06/27/1978US4097345 Na5 GdSi4 O 12 and related rare earth sodium ion conductors and electrolytic cells therefrom
06/27/1978US4097153 Method and apparatus for measuring the electrophoretic mobility of suspended particles
06/27/1978US4097149 Quantitative protein analysis by immunodiffusion
06/27/1978US4096825 Apparatus for applying an organic liquid sample