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)
10/1990
10/30/1990US4966158 Measurement method for moisture content in the skin and system therefor
10/30/1990CA1275697C Apparatus and method for the examination of a liquid medium
10/27/1990CA2014405A1 Biosensors
10/26/1990CA2014501A1 Radiation-sensitive composition and use thereof in the preparation of electrochemical ion sensors
10/25/1990DE4012685A1 Recording an electrophoretic picture - as two-dimensional picture information and as one-dimensional processing data
10/25/1990DE4011588A1 Verfahren zur zerstoerungsfreien ermittlung mehrerer parameter der mechanischen beschaffenheit metallischer werkstoffe und einrichtung zur durchfuehrung dieses verfahrens A method for nondestructive determination of several parameters of the mechanical texture of metallic materials and device for implementing said method
10/25/1990DE4007375A1 Catalytic removal of noxious components in gas stream - comprises using e.g. directly heated platinum wire placed before heated sensor
10/24/1990EP0394158A1 Method and apparatus for non-destructively controlling magnetic material, having a structure gradient in its superficial part
10/24/1990EP0393478A2 Gel transfer process and composite
10/24/1990EP0393188A1 Reference electrode
10/24/1990EP0393184A1 Ion sensor
10/24/1990EP0393171A1 Measuring the degree of mixing in a turbulent liquid
10/24/1990EP0393038A1 Electrochemical measurement sensor
10/24/1990EP0316327A4 Method and apparatus of belt testing
10/24/1990EP0312586A4 Spurious resonance control for nmr observe coils
10/24/1990EP0281610A4 Capacitor array sensors tactile and proximity sensing and methods of use thereof
10/24/1990CA2014635A1 Method and means for measuring the oxygen content of flue gas in a boiler
10/24/1990CA2005844A1 Method and apparatus for monitoring characteristics of electrically-conductive coatings on optical fibers
10/23/1990US4965698 Capacitance humidity sensor
10/23/1990US4965519 Suppression of the effect of harmless surface defects in eddy current testing by sensitivity characteristic compensation
10/23/1990US4965206 Determination of biomass
10/23/1990US4965048 Thin-layer chromatography flame ionization detector for quantitative analysis of chromatographically-separated substances
10/23/1990US4964972 Ionic recognition and selective response in self assembling monolayer membranes on electrodes
10/23/1990US4964971 Liquid analyzer
10/23/1990US4964961 Elution method and device
10/23/1990US4964736 Immersion measuring probe for use in molten metals
10/23/1990CA1275443C Sodium ion selective electrode and method of use
10/19/1990WO1990012820A1 Polymeric electrophoresis media
10/19/1990CA2030781A1 Polymeric electrophoresis media
10/18/1990WO1990012314A1 Micro-multi-electrode arrangement
10/18/1990WO1990012092A1 Process for immobilizing proteins, peptides, coenzymes, etc. on a substrate
10/18/1990DE4011991A1 Simultaneous sequencing of several DNA samples - by cloning into separate vectors, complementary strand synthesis from specific fluorescent labelled primers, electrophoretic sepn. etc.
10/18/1990DE4011770A1 Sample applicator unit - with absorption openings in application elements separable by interference fit holders
10/18/1990DE3911812A1 Fast moisture sensor on a polymer base - having sensitive polymer layer, sputtered cathode dust, cover electrode, resistance cells and electrical current
10/17/1990EP0392639A2 Method and device for measuring the moisture content of a substrate for growing
10/17/1990EP0392502A2 Method and apparatus for measuring a parameter of a gas in isolation from gas pressure fluctuations
10/17/1990EP0392447A2 Apparatus and method for determining identification and concentration of an atmospheric component
10/17/1990EP0392295A1 Eddy current probe for testing tubes in a steam generator
10/17/1990EP0391900A1 Ntc temperature-sensing device and process for producing ntc temperature-sensing elements.
10/17/1990CN2064060U Industrial acidity transmitter
10/17/1990CN2064059U No2 membrane gas sensor
10/17/1990CN1046224A Method for raising selectivity and stability of gas sensor
10/17/1990CA2014454A1 Apparatus and method for determining identification and concentration of an atmospheric component
10/16/1990US4963826 Reference standard block for use in nondestructive test probe calibration and method of manufacture thereof
10/16/1990US4963815 Photoresponsive electrode for determination of redox potential
10/16/1990US4963736 Mass spectrometer and method and improved ion transmission
10/16/1990US4963246 Oxygen concentration-sensing device
10/16/1990US4963245 Unitary multiple electrode sensor
10/16/1990US4963244 Test cell for identifying deactivated surface areas of an electrode
10/16/1990US4963243 Medium for electrophoresis
10/16/1990US4963236 Apparatus and methods for isoelectric focusing
10/16/1990CA1275333C Moisture and density determination
10/11/1990DE3910839A1 Device and control of a member for opening and closing a ventilation opening in a room
10/10/1990EP0391838A2 Arrangement for detecting chemical equalization processes in a hydrous solution
10/10/1990EP0391674A2 A method for characterising particles
10/10/1990EP0391580A2 A solvent responsive signal-carrying device
10/10/1990EP0391364A2 Gas detection apparatus and related method
10/10/1990EP0391040A2 Absorption microcopy and/or spectroscopy with scanning microscopy control
10/10/1990EP0390860A1 Medical devices fabricated from homopolymers and copolymers having recurring carbonate units.
10/10/1990EP0267236A4 Biological fluid measuring device
10/10/1990CN2063642U Permanent magnet magnetic powder crack detector
10/10/1990CN1046042A Measuring method and device of electric chemistry by use of concentration-beam microelectrode corrosion principle
10/10/1990CN1009961B Slice electrode used in measuring ion
10/10/1990CN1009960B Slice electrode used in measuring ion
10/10/1990CN1009959B Agglutination element in electrode for measuring ion
10/10/1990CN1009958B Electrode for volt-ampere analysis
10/10/1990CN1009957B Device for detecting internal anomaly of electric apparatus inflated sulfur hexafluoride
10/09/1990US4962360 Absorbent polymer, degradation of coating
10/09/1990US4962045 Following gel electrophoresis; conjugates
10/09/1990US4961957 Method of producing an electrochemical cell having a porous electrode or electrodes
10/09/1990US4961835 Oxides of yttrium, silicon, zirconium; oxygen; chips; electrodes; nonelectrolytic ceramic
10/09/1990US4961834 Reacting ammonia with reagent to form oxidizable product which oxidizes to soluble inert secondary products
10/09/1990US4961833 Field-effect transistor-type semiconductor sensor
10/09/1990US4961341 Testing device for an oxygen sensor
10/07/1990WO1990012313A1 Pseudo-continuous process for the interrogation of an oxidizable gas detector
10/05/1990WO1990012315A1 Fault detection in electrochemical gas sensing equipment
10/04/1990WO1990011527A1 A stable hemoglobin reference solution
10/04/1990WO1990011515A1 Device for non-destructive testing of workpieces by means of a magnetic field
10/04/1990WO1990011514A1 In situ polarographic sensor calibration
10/04/1990WO1990011511A1 Method and apparatus for conducting electrochemiluminescent measurements
10/04/1990WO1990011291A1 Monitoring reactions in solid-phase peptide synthesis by conductivity measurements
10/04/1990DE3910535A1 Method for the identification and functional monitoring of a test-probe arrangement for eddy-current testing
10/03/1990EP0390727A2 Diaphragmless measuring cell for the coulombmetric Karl Fischer-titration
10/03/1990EP0390692A2 Method of forming thin film, apparatus for forming thin film and sensor
10/03/1990EP0390390A1 Electrochemical biosensor based on immobilized enzymes and redox polymers
10/03/1990EP0390337A2 Oxygen sensor having a flat plate element and heater
10/03/1990EP0390093A2 Voltammetry in low-permitivity suspensions
10/03/1990EP0390009A1 Manipulator for transducers (Detectors)
10/03/1990EP0390008A2 Device for testing and/or measuring a test object
10/03/1990EP0389916A1 Apparatus for measuring the dielectric properties of materials
10/03/1990EP0389877A1 Method for stress determination in a steel material utilizing magnetostriction
10/03/1990EP0211905B1 Classification of steel
10/03/1990CN1009864B Method for estimating yield of wheat
10/03/1990CN1009863B Dewing sensor
10/02/1990US4961163 System for monitoring and reporting the operability and calibration status of a pH sensor
10/02/1990US4961147 Apparatus for measuring the electric charge condition of non-conductive particles in a liquid medium
10/02/1990US4961064 Oil leakage sensor
10/02/1990US4960999 Scanning and storage of electrophoretic records
10/02/1990US4960991 Multimode ionization source
10/02/1990US4960722 Sensor using a field effect transistor and method of fabricating the same
1 ... 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 ... 1099