Patents
Sitemap › G01 - Measuring; Testing › G01N - Investigating or analysing materials by determining their chemical or physical properties › G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
12/1978
12/19/1978US4130464 Method of evaluating the corrosion rates of metals
12/19/1978CA1044780A1 Exhaust gas sensor operational detection system
12/19/1978CA1044584A1 Vapor sampling device
12/12/1978US4129824 Electronic hydrometer
12/12/1978US4129501 Method and apparatus for detecting water in oil
12/12/1978US4129491 Oxygen concentration analyzer
12/12/1978US4129479 Ammonia content
12/12/1978US4129478 Enzyme reactions
12/12/1978US4129418 Discriminating halogen sensor
12/12/1978US4129099 Galvanic exhaust gas sensor with solid electrolyte
12/12/1978US4129030 Sensing apparatus and method
12/12/1978US4129029 Device for measuring the amount of gas dissolved in a liquid
12/12/1978CA1044324A2 Solid state sensor for anhydrides
12/12/1978CA1044323A1 Method and means for quantitative analysis of sulfuric acid-containing gases
12/12/1978CA1044039A1 Automatic inspection apparatus for steam pipes
12/05/1978US4128470 Supports for electrophoresis and process for the production of the same
12/05/1978US4128469 Electrochemical sensor
12/05/1978US4128468 Electrode structures
12/05/1978US4128456 Suction electrode for intracellular potential measurement
12/05/1978CA1043703A1 Fractionation of proteins by electrical means
11/1978
11/28/1978US4127815 Method and apparatus for marking an article following flaw detection using a fusible metal powder
11/28/1978US4127813 Method for balancing the sensitivity of two channels in a differential detection apparatus
11/28/1978US4127464 Sensor for detecting oxygen concentration
11/28/1978US4127463 Probe for an electrochemical oxygen measurement pickup
11/28/1978US4127462 Device for the detection and measurement of noxious gases
11/28/1978US4127448 Amperometric-non-enzymatic method of determining sugars and other polyhydroxy compounds
11/28/1978US4127024 Battery voltage regulating and condition indicating circuit for measuring instruments
11/28/1978CA1043127A1 Apparatus for measuring the properties of fluid
11/21/1978US4126857 Probe-type liquid detector
11/21/1978US4126532 Oxygen sensor
11/21/1978US4126531 Sensor with annular pressure compensating means
11/21/1978US4126491 Method and apparatus for producing metal blanks, in particular steel slabs, which at least in a predetermined surface area have substantially no defects
11/21/1978CA1042987A1 Apparatus for measuring the presence of a weak acid or a week base in a liquid
11/21/1978CA1042682A1 Detection device for oil floating on water
11/14/1978US4125822 Probe for determining organic liquids
11/14/1978US4125805 Method and apparatus for defect inspection of liquid-filled insulating container
11/14/1978US4125440 Method for non-destructive testing of semiconductor articles
11/14/1978US4125374 Method and apparatus for determining combustion mixture air/fuel ratio
11/14/1978CA1042564A1 Ionization type smoke sensor
11/14/1978CA1042228A1 Water depth measuring device
11/07/1978US4124475 Hydrogen sulfide monitoring system
11/07/1978US4124470 Method and apparatus for electrophoresis
11/07/1978US4123934 Bridge circuit arrangement for a gas detection instrument
11/07/1978CA1042118A1 Mass spectrometric system for rapid automatic and specific identification and quantitation of compounds
11/07/1978CA1042088A1 Fire detectors
10/1978
10/31/1978US4123708 Method and apparatus for eddy current inspection of hot test pieces with means to cool the detector and to purge the test path of contaminants
10/31/1978US4123707 Magnetic field sensor housed in a cooling device for sensing the charge in a shaft furnace or the like
10/31/1978US4123701 Disposable sample card having a well with electrodes for testing a liquid sample
10/31/1978US4123700 Potentiostated, self-humidifying, solid polymer electrolyte carbon monoxide dosimeter
10/31/1978US4123656 Storage type smoke detector
10/31/1978US4123353 Method and apparatus for measuring the content of a low-molecular weight compound in a complex medium
10/31/1978US4123344 Two fire ceramic sealed oxygen sensing device and method of forming same
10/31/1978US4123335 Voltage measurement with spaced reference electrode
10/31/1978US4123225 Combustible gas detectors
10/31/1978US4123131 Vented electrical connector
10/31/1978CA1041678A1 Ionization-type fire or smoke sensing system
10/31/1978CA1041633A1 Method and apparatus for detecting and correcting metal slab defects
10/31/1978CA1041423A1 Composition for assaying for biologically active molecules
10/24/1978US4122389 Moisture sensor
10/24/1978US4121989 Method of making oxygen sensor
10/24/1978US4121988 Exhaust gas, metal oxide solid electrolyte
10/24/1978US4121548 Deteriorated condition detecting apparatus for an oxygen sensor
10/24/1978US4121458 Reliable dynamoelectric machine condition monitor
10/24/1978US4121433 Means for sensing frost accumulation in a refrigeration mechanism
10/24/1978CA1040885A1 Magnetoelastic transducer arrangement
10/17/1978US4121288 Magnetic tape type sensors, method and apparatus using such magnetic tape sensors
10/17/1978US4121157 Castable magnetic particle flaw detection composition and method using constituents that are non-volatile and resistant to oxidation below 100° F and having a viscosity less than 12,000 centipoises
10/17/1978US4121151 Analysis instrument
10/17/1978US4121105 Ionization detector
10/17/1978US4121099 Method and apparatus for focussing and declustering trace ions
10/17/1978US4120770 Apparatus for the polarographic measurement of oxygen
10/17/1978US4120659 Sulfur analysis
10/17/1978US4120657 Accuracy and speed
10/17/1978US4120292 Implantable electrochemical sensor having an external reference electrode
10/17/1978CA1040710A1 Water quality monitor
10/17/1978CA1040457A1 Flowing gas sampling tube with gas sensor
10/17/1978CA1040454A1 Method of and apparatus for quantitative analysis
10/10/1978US4119909 Pulsed DC transient conductivity measurement system
10/10/1978US4119851 Apparatus and a method for detecting and measuring trace gases in air or other gas backgrounds
10/10/1978US4119521 Dna intercalation agent
10/10/1978US4119513 Oxygen sensor for industrial air/fuel control
10/10/1978US4119512 Air-fuel ratio detecting apparatus
10/10/1978US4119498 Ph, partial pressure of oxygen and carbon dioxide
10/10/1978US4119406 Monitoring specific characteristic of continuously flowing blood sample
10/10/1978CA1040266A1 Device for measuring the mass of particles of an aerosol per volume unit
10/10/1978CA1040264A1 Solid state sensor for anhydrides
10/03/1978US4118689 Smoke detector
10/03/1978US4118663 Four electrode conductivity sensor
10/03/1978US4118300 Coulometric titrator
10/03/1978US4118194 Electrolytic cell responsive to halogens
10/03/1978US4117715 Apparatus for measuring charge on, and density of, airborne particulates
10/03/1978CA1039810A1 Dissolved oxygen probe
10/03/1978CA1039809A1 Digital apparatus for rapidly detecting the growth of and identifying micro-biological organisms
09/1978
09/26/1978US4117504 Heterogeneous semiconductor structure with composition gradient and method for producing same
09/26/1978US4117403 Single magnetic stray field sensor whose signals are differently attenuated in two channels and then compared
09/26/1978US4117396 Sodium
09/26/1978US4117332 Circuit for linearizing the response of an electron capture detector
09/26/1978US4116798 Reference electrode for use at high temperatures and pressures
09/26/1978US4116797 Oxygen sensor
09/26/1978US4116796 Selective halide and sulfide sensitive electrodes
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