Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
05/1977
05/17/1977US4023931 Means and method for measuring levels of ionic contamination
05/17/1977US4023503 Conveying installation
05/17/1977US4023398 Apparatus for analyzing trace components
05/10/1977USRE29209 Method and apparatus for continuously sensing the condition of a gas stream
05/10/1977US4023206 Humidity sensor
05/10/1977US4023096 Method and apparatus for determining physical characteristics of emulsions
05/10/1977US4023022 System for automatically and continuously measuring zinc and sulfuric acid concentration in circulating electrolyte
05/03/1977US4021733 Moisture meters
05/03/1977US4021671 Ionization detector
05/03/1977US4021326 Electro-chemical sensor
05/03/1977US4021325 Selective fluoride-sensitive electrode
05/03/1977US4021324 Method for electrophoretic destaining
05/03/1977US4021200 Electronic digital radial and electro immunodiffusion calibrating viewer
05/03/1977US4021199 Automatic cleaning apparatus for electrodes of pH meter
05/03/1977US4020830 Field effect transistor
05/03/1977US4020678 Method and system for testing of individual gear teeth
05/03/1977US4020677 Apparatus for determining salinity of fluids
04/1977
04/26/1977US4020480 Catalytic detecting apparatus for detecting combustible gases and vapors
04/26/1977US4020417 Soil moisture indicator device
04/26/1977US4020415 Combustion product indicator
04/26/1977US4019995 Lignosulfonate composition and process for its preparation
04/26/1977US4019994 Process for the preparation of aqueous magnetic material suspensions
04/26/1977US4019974 Electrochemical sensor construction
04/26/1977US4019966 Method of amperometric determination of the concentration of arendiazonium salts
04/26/1977US4019367 Linearized odor transducer
04/26/1977US4019364 Method and apparatus for testing welds between dissimilar metals by using the seebeck effect
04/19/1977US4019133 Corrosion detecting and monitoring apparatus
04/19/1977US4019132 Method and apparatus for determining the moisture content of different kinds of materials
04/19/1977US4018691 Aryl sulfonate-aldehyde composition and process for its preparation
04/19/1977US4018662 Method and apparatus for simultaneous quantitative analysis of several constituents in a sample
04/19/1977US4018661 Instrument sensor assembly
04/19/1977US4018660 Gas electrode
04/19/1977US4018565 Automatic process titration system
04/19/1977US4017950 Method for making a gas sensor assembly
04/12/1977US4017826 Method and apparatus for extending the operating range of a condition monitoring system
04/12/1977US4017820 Humidity sensor with multiple electrode layers separated by a porous monolithic ceramic dielectric structure
04/12/1977US4017792 Or measuring alcohol content in a gas and method of manufacturing a semi-conductor body for use in alcohol detection
04/12/1977US4017733 Ionization type smoke sensor
04/12/1977US4017374 Electrochemical measuring electrode
04/12/1977US4017373 Electrochemical sensing cell
04/05/1977US4016524 Sensor for a gas detector, in particular for smoke detection
04/05/1977US4016487 Arrangement of eddy current scanning coils
04/05/1977US4016421 Analytical apparatus with variable energy ion beam source
04/05/1977US4016308 Humidity sensor, material therefor and method
04/05/1977US4016063 Electrode shield
04/05/1977US4016044 Method and apparatus for governing the reaction rate of enzymatic reactions
04/05/1977US4015475 Method of and device for stripping off a lost measuring head detachably placed upon a measuring lance
03/1977
03/29/1977USRE29166 Magnetic flaw detector system for reciprocating pairs of leakage field detectors with means for adjusting the spacing between each pair of detectors
03/29/1977US4015230 Humidity sensitive ceramic resistor
03/29/1977US4015199 Cell for measurement of the electrical conductivity of liquids
03/29/1977US4014798 Insoluble polyelectrolyte and ion-exchange hollow fiber impregnated therewith
03/29/1977US4014206 Apparatus and method for monitoring air emboli during extracorporeal circulation
03/22/1977US4013943 Solid state electrolytic cell gas sensor head
03/22/1977US4013924 Methods and means for detecting the presence of moisture adjacent insulated pipes
03/22/1977US4013913 Ion detection electrode arrangement
03/22/1977US4013522 Method and apparatus for measuring the concentration of carbon monoxide
03/22/1977US4013412 Method for judging purity of purified zinc sulphate solution used for electrolytic production of zinc
03/22/1977US4013364 Baseline correction in densitometrical measurements
03/15/1977US4012729 Multi-element ionization chamber
03/15/1977US4012709 Cobalt-magnesium monoxide alloy ceramic partial pressure of oxygen sensor
03/15/1977US4012692 Method and apparatus for determining the concentration of one gaseous component in a mixture of gases
03/15/1977US4012308 Ion sensitive combination electrode
03/15/1977US4012291 Electrochemical olefin detector for gaseous streams
03/15/1977US4012290 In gasoline
03/15/1977US4012278 Feed water and condensate sample analyzer for power plants
03/15/1977US4012197 Titration apparatus and method therefor
03/15/1977US4011655 Exhaust gas sensor probe method of manufacture
03/15/1977US4011654 Firing alumina ceramic tube
03/08/1977US4011538 Fluid sensor
03/08/1977US4011501 Apparatus and method for determining moisture content in welding electrode coatings
03/08/1977US4011072 Flotation of oxidized copper ores
03/08/1977US4011044 Use of laser speckle patterns for measurement of electrophoretic mobilities
03/08/1977US4010715 Fluid conductivity detecting means
03/01/1977US4010416 Method and apparatus for testing dielectric adequacy and for indicating physical defects in a nonconducting material
03/01/1977US4010383 Or washers, and the like
03/01/1977US4009998 Acid concentration measurement
03/01/1977US4009721 Artificial pacemaker
02/1977
02/22/1977US4009078 Detecting the presence of microorganisms
02/15/1977US4008141 Combination pH electrode
02/15/1977US4007624 Electronegative gas detection technique
02/15/1977US4007589 Internal combustion exhaust catalytic reactor monitoring system
02/08/1977US4007435 Sensor device and method of manufacturing same
02/08/1977US4007319 Monitoring suspension stability
02/08/1977US4007106 Device for measuring oxygen concentration in molten-metal
02/08/1977US4007105 Electrode module for titration apparatus
02/08/1977US4007096 Trace gas detection method
02/08/1977US4006705 Limited pressure applicator
02/01/1977US4006411 Static capacitance type sensor
02/01/1977US4006406 Inductively operated sensor for testing technological quantities of a ferromagnetic work piece
02/01/1977US4006405 Method and apparatus for measuring parameters of a conductive material which can be used in independently determining thickness and conductivity
02/01/1977US4006350 Method for performing a separating analysis
02/01/1977US4006069 Polymeric flat plate and gel enclosed in the open cells
02/01/1977US4006063 Method for measuring surface characteristics of metals and metalloids
01/1977
01/25/1977US4005360 Probe with ball bearing ball
01/25/1977US4005359 Resonant frequency measuring device for gauging coating thickness
01/25/1977US4005002 Lactate and glucose in biological fluids
01/25/1977US4005001 Methane, hydrogen, carbon monoxide
01/25/1977US4004693 Apparatus for inspecting the disposition of steel ply cords in pneumatic tires
01/25/1977US4004452 Fuel ratio sensor for airfuel ratios in excess of stoichiometrycobalt monoxide ceramic
01/25/1977US4004331 Method of manufacturing multi-wire oxygen electrode