| Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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| 07/23/1991 | US5033438 Method and device for improving the exhaust-gas behavior or mixture-compressing internal combustion engines |
| 07/23/1991 | US5033397 Soil chemical sensor and precision agricultural chemical delivery system and method |
| 07/23/1991 | US5033321 Method and apparatus for measuring the degree of mixing in a turbulent liquid system |
| 07/23/1991 | US5033293 Alcohol concentration detecting device |
| 07/23/1991 | US5033289 Water cut monitoring means and method |
| 07/23/1991 | US5033284 Calibration method for gas or vapor relative concentration sensor |
| 07/23/1991 | CA1286724C Method and apparatus for monitoring electromagnetic emission levels |
| 07/23/1991 | CA1286723C Windshield moisture sensor |
| 07/23/1991 | CA1286722C Solid state indicator electrode and method of making same |
| 07/23/1991 | CA1286720C Flushable electrode assembly |
| 07/23/1991 | CA1286618C Method for locating and purifying dna containing single base mismatches |
| 07/18/1991 | DE4001167A1 Contactless magnetic powder testing of hollow ferromagnetic cylinders - using coil to generate field in pipe end region and detecting resulting magnetic powder alignment |
| 07/17/1991 | EP0437358A2 Glow discharge spectrometry |
| 07/17/1991 | EP0437275A2 Microprobe, method for producing the same, and information input and/or output apparatus utilizing the same |
| 07/17/1991 | EP0437085A2 Linear prediction ion cyclotron resonance spectrometry apparatus and method |
| 07/17/1991 | EP0436982A2 Scanning tip for a scanning tunnelling apparatus |
| 07/17/1991 | EP0436679A1 Glucose-level measurement device. |
| 07/17/1991 | EP0436640A1 Method and apparatus for charge distribution analysis |
| 07/17/1991 | EP0360862A4 Isotope-ratio-monitoring gas chromatography-mass spectrometry apparatus and method |
| 07/17/1991 | EP0300027A4 Apparatus and methods for sensing fluid components |
| 07/17/1991 | CN2081096U Surface wave generator for flaw detecting of concrete |
| 07/17/1991 | CN2081095U Water ratio determination apparatus for finishing |
| 07/17/1991 | CN2081094U Electronic smokescope |
| 07/17/1991 | CN1053127A Soil moisture measuring gauge with double-electrodes fixed in the fields |
| 07/17/1991 | CA2033008A1 Video densitometer |
| 07/16/1991 | US5032721 Acid gas monitor based on ion mobility spectrometry |
| 07/16/1991 | US5032363 Addition copolymer |
| 07/16/1991 | US5032248 Gas sensor for measuring air-fuel ratio and method of manufacturing the gas sensor |
| 07/16/1991 | US5032247 Method and apparatus for electrophoretic separations |
| 07/16/1991 | US5031449 Copper or oxide particles in ionomer |
| 07/16/1991 | US5031445 Waterproof type oxygen sensor |
| 07/16/1991 | CA1286426C Atmospheric sampling glow discharge ionization source |
| 07/16/1991 | CA1286389C Automatic pipetting apparatus |
| 07/16/1991 | CA1286386C Method and apparatus for sensing the condition of lubricating oil in an internal combustion engine |
| 07/16/1991 | CA1286361C Element and device for detecting internal faults in an insulating gas charged electrical apparatus |
| 07/16/1991 | CA1286360C Heated solid electrolyte oxygen sensor having unique heater element |
| 07/16/1991 | CA1286212C Semiconductor gas sensor having thermally isolated site |
| 07/16/1991 | CA1286167C Method for forming patterned tin oxide thin film element |
| 07/11/1991 | WO1991010902A1 Magnetic document validator |
| 07/11/1991 | WO1991010130A1 Wide-band probe platelet for determining the oxygen concentration in exhaust gases |
| 07/11/1991 | WO1991010129A1 A protein purification system based on isoelectric focusing and isotachophoresis |
| 07/11/1991 | DE4000164A1 Windscreen wiper control dependent on rain-fall - uses capacitance sensor formed by two electrodes using glass of windscreen as dielectric |
| 07/11/1991 | CA2048632A1 Magnetic document validator |
| 07/11/1991 | CA2033963A1 Glow discharge spectrometry |
| 07/10/1991 | EP0436454A1 Detector of seeds to be sown |
| 07/10/1991 | EP0436148A1 Electrochemical cell for sensing of gaseous components in fluid medias |
| 07/10/1991 | EP0436086A1 Isolation of alpha-1-antitrypsin from human plasma and construction of a kit useful for detecting alpha 1-antitrypsin levels in blood |
| 07/10/1991 | EP0427845A4 Gel casting method and apparatus |
| 07/10/1991 | CN2080672U Electromagnetic and photoelectric on-line iron spectrograph |
| 07/10/1991 | CN2080671U Acidimeter operated by two keys |
| 07/10/1991 | CN2080670U Capacitance type organic film humidity sensor |
| 07/10/1991 | CN1052948A Equipment for testing structure of carbon black |
| 07/09/1991 | US5031126 Constant power thermal sensor |
| 07/09/1991 | US5030911 Method and apparatus for displaying defects in tubular members on a two-dimensional map in a variety of display modes |
| 07/09/1991 | US5030826 Single port thermospray ion source with coaxial vapor flow |
| 07/09/1991 | US5030418 Biochemical analysis apparatus |
| 07/09/1991 | US5030336 Accuracy |
| 07/09/1991 | US5030334 Ozone measuring method |
| 07/09/1991 | US5030333 Polarographic method for measuring both analyte and oxygen with the same detecting electrode of an electroenzymatic sensor |
| 07/09/1991 | US5030310 Electrode for electrochemical sensors |
| 07/09/1991 | CA2033688A1 Humidity sensor and measuring assembly equipped with many of these sensors |
| 07/09/1991 | CA2007372A1 Method and apparatus for sample injection into ion mobility spectrometer |
| 07/09/1991 | CA1285902C2 Process for preparation of electrophoresis gel material |
| 07/09/1991 | CA1285832C Acid wash of a metal chloride layer of an ion selective electrode |
| 07/06/1991 | CA2033439A1 Process for the elementary analysis of a specimen by high frequency inductively coupled plasma mass spectrometry and apparatus for carrying out this process |
| 07/04/1991 | DE4013473C1 Measurement of harmful gases and their degraded prods. - comprises measuring, conducting and reference electrodes, measurement can be taken without having reference environment |
| 07/03/1991 | EP0435175A2 Electrophoresis system |
| 07/03/1991 | EP0435074A2 Method and device for treating of electrophoresis supports |
| 07/03/1991 | EP0434792A1 Multiply charged ions and a method for determining the molecular weight of large molecules |
| 07/03/1991 | EP0434742A1 Disposable sensing device for real time fluid analysis. |
| 07/02/1991 | US5028906 Humidity sensor |
| 07/02/1991 | US5028869 Process and apparatus for the nondestructive measuring of magnetic properties of a test body, by detecting a tangential magnetic field and deriving harmonic components thereof |
| 07/02/1991 | US5028793 Doped phosphor coating |
| 07/02/1991 | US5028657 Enzymes bonded to polyethylene, polypropylene or cellulose acetate |
| 07/02/1991 | US5028544 Method of analysis of organic compounds in chromatography and apparatus for performing this method |
| 07/02/1991 | US5028309 Electrochemical device incorporating means for preventing reduction of solid electrolyte and insulating ceramics due to heater current leakage |
| 07/02/1991 | US5028308 Apparatus for the electrophoretic separation of high-molecular DNA in gel |
| 07/02/1991 | US5028144 Brake fluid testing device |
| 07/02/1991 | US5028100 Methods for nondestructive eddy-current testing of structural members with automatic characterization of faults |
| 07/02/1991 | US5027652 Ceramic with opeining and foil covering |
| 07/02/1991 | US5027646 Method of evaluating air-fuel ratio sensor and apparatus therefor |
| 07/02/1991 | US5027499 Diposition of wall; dissolving; thermoconductivity recording |
| 07/02/1991 | CA1285631C Gas detection method and apparatus using chemisorption and/or physisorption |
| 07/02/1991 | CA1285614C Solid state reference electrode |
| 06/28/1991 | CA2006753A1 Element, module, device and process for detecting no x gas |
| 06/27/1991 | WO1991009306A1 Selective gas detection by field separation and sound velocity measurement: o2 detection |
| 06/27/1991 | WO1991009303A1 Improved electrochemical sensors and methods for their use |
| 06/27/1991 | WO1991009302A1 Method for increasing the service life of an implantable sensor |
| 06/27/1991 | WO1991009301A1 Resistance probe for monitoring gas compositions, and process for its manufacture |
| 06/27/1991 | WO1991009219A1 Process and device for monitoring the operation of a probe heating installation |
| 06/27/1991 | DE4040452A1 New polyene cpds. contg. sympathomimetic gps. - are used for carrying and amplifying electrical impulses, as bio-sensors, photovoltaic electrodes, or for information or energy storage |
| 06/27/1991 | DE3942773A1 Plaettchenfoermige breitbandsonde fuer die bestimmung der sauerstoffkonzentration in abgasen Plaettchenfoermige broadband probe for the determination of the oxygen concentration in exhaust fumes |
| 06/27/1991 | DE3942500A1 IOn conductor-contg. plastics solid electrolyte - esp. useful in reference and oxygen electrodes |
| 06/26/1991 | EP0434085A2 Sensor system |
| 06/26/1991 | EP0433849A1 Apparatus and method for determining the identity and concentration of an atmospheric component |
| 06/26/1991 | EP0433741A1 Method and apparatus for detecting fluids, especially gases or liquids, according to the principle of thermal conductivity |
| 06/26/1991 | EP0433499A1 Apparatus for monitoring the quality of water |
| 06/26/1991 | EP0433311A1 Process and instrument for a three component measurement. |
| 06/26/1991 | EP0179084B1 Method for assessing particle deposits |
| 06/26/1991 | CN2079752U Smoke sensory detector by ionization particle |