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