| Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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| 04/30/1991 | US5011587 Apparatus for the detection of chemical equalization processes in an aqueous solution |
| 04/30/1991 | US5011586 Constrained uniform field gel electrophoresis |
| 04/30/1991 | US5010762 Measurement and control of exhaust gas recirculation with an oxygen pumping device |
| 04/30/1991 | CA1283705C Crack detector for heated glass panel |
| 04/30/1991 | CA1283703C Seal means for isolated grounded o _sensor |
| 04/30/1991 | CA1283702C Seal for single wire o _sensor |
| 04/30/1991 | CA1283626C Gas diffusion electrode with polymeric hydrogel coating |
| 04/27/1991 | CA2028609A1 Method and apparatus for electrochemical immunoassay |
| 04/25/1991 | DE4003728C1 Uneven rotation detector for transport rollers in tunnel furnace - has measuring units for devices assigned to rollers to deliver magnetic, EM, acoustic or optical signals |
| 04/25/1991 | DE3935020A1 Verbesserte elektrophoresegele aus agarose Improved agarose electrophoresis gels from |
| 04/25/1991 | DE3934586A1 Elektrochemischer messfuehler Electrochemical measurement sensor |
| 04/25/1991 | DE3910037A1 Electrochemical cell for use as oxygen sensor - uses an alkaline medium with opposite reactions to ensure cell-conditions remain constant |
| 04/25/1991 | CA2027156A1 Cyclic voltammetry |
| 04/24/1991 | EP0423953A1 Method for creative kinase isoform separation |
| 04/24/1991 | EP0423927A2 Monitoring system for detecting quench |
| 04/24/1991 | EP0423753A1 Method and apparatus for displaying defects in tubular members |
| 04/24/1991 | EP0423622A1 Detector having self-calibration function |
| 04/24/1991 | EP0423454A2 Multimode ionization source |
| 04/24/1991 | EP0423314A1 Casting of gradient gels |
| 04/24/1991 | EP0423312A1 Detection of endotoxin in pharmaceutical preparations by mass spectrometry |
| 04/24/1991 | EP0423225A1 Biological fluid measuring device |
| 04/24/1991 | EP0362203A4 Dynamic precious metal assay device |
| 04/24/1991 | CN2075783U 金属信号探测器 Metal detector signal |
| 04/24/1991 | CN2075782U Portable detector for rock test |
| 04/24/1991 | CN1012452B Potential digestion analyzer |
| 04/23/1991 | US5010301 Method for determining the swelling clay content of cement mixtures by dielectric measurements |
| 04/23/1991 | US5010299 Method for measuring stress on steel by determining the reverse magnetic permeability under a magnetic bias field |
| 04/23/1991 | US5010021 Method for restoring the sensing capacity of an electrical sensor |
| 04/23/1991 | US5009848 On board automatic diesel engine cooling water chemical treatment dispensing system |
| 04/23/1991 | US5009766 Ph sensitivity |
| 04/23/1991 | US5009760 System for measuring electrokinetic properties and for characterizing electrokinetic separations by monitoring current in electrophoresis |
| 04/23/1991 | US5009759 Methods for producing agarose gels having variable pore sizes |
| 04/23/1991 | CA1283447C Zero volume electrochemical cell |
| 04/21/1991 | CA2027916A1 Method and formulation for creatine kinase isoform separation |
| 04/18/1991 | WO1991006192A1 Soft sonar suspension system |
| 04/18/1991 | WO1991006003A1 Method of and device for measuring oxygen activity in slag and consumable type crucible used for said device |
| 04/18/1991 | WO1991005265A1 Treatment of carbohydrates |
| 04/18/1991 | WO1991005256A1 Analysis of carbohydrates |
| 04/18/1991 | WO1991005248A1 Measurement electrode arrangement for making measurements in liquids |
| 04/18/1991 | WO1991005247A1 Electrode material, electrode, process for manufacturing the electrode and use of the electrode |
| 04/18/1991 | WO1991005084A1 Gel packed columns suitable for use in chromatography |
| 04/18/1991 | DE3934532A1 Detection of oxidisable gases e.g. carbon mon:oxide - using metal oxide and phthalocyanine sensors for detection in mixt. whose components tend to react directly |
| 04/18/1991 | CA2067242A1 Soft sonar suspension system |
| 04/18/1991 | CA2042601A1 Method of measuring oxygen activities in slag, apparatus therefor and disposable crucible used therefor |
| 04/17/1991 | EP0422758A2 Electrochemical gas sensors |
| 04/17/1991 | EP0422708A2 Devices for use in chemical test procedures |
| 04/17/1991 | EP0422700A2 Vacuum molecular transfer apparatus |
| 04/17/1991 | EP0422665A2 Air/fuel ratio sensor |
| 04/17/1991 | EP0422623A2 Enzymatic electrode and its use |
| 04/17/1991 | EP0422572A2 Method of continuous determination of dimethylformamide and dimethylamine in aqueous solutions, specifically in waste water |
| 04/17/1991 | EP0422131A1 Inhomogeneity detection system |
| 04/17/1991 | CN2075342U Fast tester for moisture content |
| 04/17/1991 | CN1050779A Insertion-type dead time tester read-out directly at site |
| 04/17/1991 | CN1050770A Method for measuring nitrogen content |
| 04/16/1991 | US5008628 Measurement of electrical resistivity of particulate entrained in a gas stream |
| 04/16/1991 | US5008627 Conductivity detector |
| 04/16/1991 | US5008623 Method and apparatus for testing balls with the use of eddy currents |
| 04/16/1991 | US5008620 Leakage flux flaw detection method and apparatus utilizing a layered detector |
| 04/16/1991 | US5008616 Fluidics head for testing chemical and ionic sensors |
| 04/16/1991 | US5008162 Test cell structure |
| 04/16/1991 | US5007996 Detection system |
| 04/16/1991 | US5007992 Method and apparatus for removing oxygen from a semiconductor processing reactor |
| 04/16/1991 | US5007989 Method and articles employing ion exchange material |
| 04/16/1991 | US5007988 Method for determining the concentration of a plurality of combustible gases in a stream |
| 04/16/1991 | US5007424 Polarographic/amperometric measuring sensor |
| 04/16/1991 | US5007283 Method and device for processing measured values |
| 04/16/1991 | CA1283168C Capacitance measuring circuit |
| 04/11/1991 | DE3931851A1 Computer-controlled potential difference conductivity scanner - has detection unit with rows of electrodes controlled individually and in groups via relays for carrier-free electrophoresis |
| 04/11/1991 | CA2016826A1 Precalibrated, disposable electrochemical sensing devices |
| 04/10/1991 | EP0421881A1 Conductive material for electrode, electrical component and their process for manufacturing |
| 04/10/1991 | EP0421783A2 Testing of laminated magnetic cores |
| 04/10/1991 | EP0421672A2 Oxygen monitoring method and apparatus |
| 04/10/1991 | EP0421671A2 Oxygen monitoring apparatus |
| 04/10/1991 | EP0421595A2 Integrated temperature control/alignment system for a capillary electrophoretic apparatus |
| 04/10/1991 | EP0421437A2 Scanning tunneling microscope having proper servo control function |
| 04/10/1991 | EP0421355A2 Scanning tunneling microscope |
| 04/10/1991 | EP0421354A2 Scanning tunneling microscope |
| 04/10/1991 | EP0421158A1 Catalytic gas sensor and method of fabricating said sensor |
| 04/10/1991 | EP0420983A1 Solid phase ionoselective electrode |
| 04/10/1991 | EP0362304A4 Chemical sensors employing catalytic antibodies |
| 04/10/1991 | CN2074916U Boiler water hardness mornitoring and testing instrument |
| 04/10/1991 | CN2074915U Two-point gas testing closed explosion device |
| 04/10/1991 | CN2074914U Double-probe anti-interference alcohol sensitive testing instrument |
| 04/10/1991 | CN2074913U Digital soil conductivity testing instrument |
| 04/10/1991 | CN2074912U Transducing electrode for testing urine quantity |
| 04/10/1991 | CN1050611A Magnetic defect detector for steel strip |
| 04/09/1991 | US5006828 Exhaust gas sensor and process for producing same |
| 04/09/1991 | US5006801 Eddy current inspection probe with probe coil resonace reduction |
| 04/09/1991 | US5006800 Eddy current imaging apparatus and method using phase difference detection |
| 04/09/1991 | US5006791 Electrostatic detector and method for detecting conductors |
| 04/09/1991 | US5006788 Method and apparatus for monitoring electromagnetic emission levels |
| 04/09/1991 | US5006706 Analytical method and apparatus |
| 04/09/1991 | US5006313 Halogenated surface with reduced protein interaction |
| 04/09/1991 | US5006221 Oxygen concentration-detecting apparatus |
| 04/09/1991 | US5006210 Means and method for capillary zone electrophoresis with laser-induced indirect fluorescence detection |
| 04/09/1991 | US5005406 Monitoring drilling mud composition using flowing liquid junction electrodes |
| 04/09/1991 | US5005402 Measuring cell for determinating the alcohol content and/or calorific value of fuels |
| 04/09/1991 | CA1282829C Method and apparatus for generating and detecting magnetization response from ferromagnetic, ferrimagnetic paramagnetic, or diamagnetic materials |
| 04/09/1991 | CA1282731C Radiation process for preparation of electrophoresis gel material |
| 04/06/1991 | CA2026609A1 Testing of laminated magnetic cores |