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)
11/1990
11/20/1990US4972155 Weight responsive moisture tester
11/20/1990US4972154 Apparatus and method for measuring wood grain angle
11/20/1990US4971901 Crosslinked albumin layer, oxidase layer
11/20/1990US4971853 Laser directed chemical vapor deposition of transparent metal films
11/20/1990US4971830 Cermet electrodes; sintering doped zirconia into a porous metal electrode
11/20/1990US4971739 Method of producing fluorapatite and a moisture sensitive resistor using fluorapatite obtained by the same
11/20/1990US4971677 Dna or rna labeled with fluorescent compounds, electrophoresis, polyacrylamide gel plates
11/20/1990US4971671 Processes for separation of DNA fragments
11/20/1990US4971670 Isoelectric focusing process and a means for carrying out said process
11/20/1990US4971015 Combustion engine with multi-fuel capability
11/20/1990US4970891 Apparatus for measuring gaseous impurity in solids
11/20/1990CA1276678C Oxygen-sensing element
11/20/1990CA1276589C Processes and apparatus for preparatory electrophoresis
11/20/1990CA1276584C Solid compounds based on superoxides exhibiting high ion conductivity, theirmanufacture, and related electrochemical uses
11/20/1990CA1276432C Solid state arsenic probe for use in pyrometallurgical processes
11/19/1990CA2017207A1 Method and apparatus for detecting odors
11/16/1990CA2016786A1 Bias current control for providing accurate potentiometric measurements
11/15/1990WO1990013793A1 Circuit and process for measuring a value affecting the capacitance-voltage characteristic of a capacitive component
11/15/1990DE4014686A1 Head measuring changes in magnetic properties due to mechanical stress - has coil carrying arms of iron core with common back plate
11/14/1990EP0397584A2 A humidity meter
11/14/1990EP0397576A1 Functional elemental device and fet sensor provided with the same
11/14/1990EP0397416A1 Imaging apparatus and method
11/14/1990EP0305425B1 Test head and process for its manufacture
11/14/1990CN1046979A Method of distinguishing quickly seeds purity
11/13/1990WO1990013634A2 Enzymes and their use in drug detection
11/13/1990US4970356 Rainfall responsive switch construction
11/13/1990US4970122 Moisture sensor and method of fabrication thereof
11/13/1990US4969978 Electrolytic cells
11/13/1990US4969363 Electromagnetic flowmeter capable of simultaneous measurement of flow rate and conductivity of fluid
11/13/1990CA1276260C Liquid leak sensor with spacer
11/13/1990CA1276232C Glucose electrode and method of determining glucose
11/13/1990CA1276231C Electrochemical oxygen sensor with noble metal screen
11/13/1990CA1276230C Oxygen sensor
11/13/1990CA1276229C Apparutus and methods for sensing fluid components
11/13/1990CA1276080C Bs&w measurement apparatus and method
11/08/1990CA2016002A1 Imaging apparatus and method
11/07/1990EP0396366A2 Electrode probe
11/07/1990EP0396365A2 Electrode probe
11/07/1990EP0396156A1 Method of manufacturing a membrane for an electrochemical sensor
11/07/1990EP0396053A2 Pulsed field gel electrophoresis of large DNA
11/07/1990EP0395937A1 Capacitive humidity sensor
11/07/1990EP0395927A1 Electrochemical sensor for measuring ammonia or hydrazine
11/07/1990EP0395796A1 Vacuum injection capillary electrophoresis
11/07/1990CN2065323U High-purity water resistivity monitoring device
11/07/1990CN1046815A Preparation of ordinary-temp gas-sensitive semiconducting element
11/06/1990USH839 Fabric moisture detector
11/06/1990US4968535 Method of producing gradient gel medium membrane for electrophoresis
11/06/1990US4968400 Enzyme sensor
11/06/1990US4968148 Single source multi-site photometric measurement system
11/06/1990US4967880 Process and apparatus for monitoring lubricating oil water content for rotary printing presses
11/06/1990US4967589 Gas detecting device
11/06/1990CA1275969C Destaining apparatus for electrophoresis gels
11/05/1990WO1990013534A1 Detection of endotoxin in pharmaceutical preparations by mass spectrometry
11/05/1990CA2032133A1 Detection of endotoxin in pharmaceutical preparations by mass spectrometry
11/05/1990CA2016107A1 Pulsed field gel electrophoresis of large dna
11/02/1990WO1990014201A1 Gel casting method and apparatus
11/02/1990WO1990013813A1 Casting of gradient gels
11/02/1990CA2031531A1 Gel casting method and apparatus
11/02/1990CA2031530A1 Casting of gradient gels
11/01/1990WO1990013023A1 Solid phase ionoselective electrode
11/01/1990WO1990013022A1 Electrode for detecting and/or measuring electrochemical processes
11/01/1990WO1990013020A1 Non-glass gel mold having low oxygen permeability and uses thereof
11/01/1990WO1990013017A1 Analytical apparatus
11/01/1990WO1990013014A1 Single-use disposable molten metal inclusion sensor
11/01/1990WO1990007545A3 Stabilized microporous materials and hydrogel materials
10/1990
10/31/1990EP0395616A2 Method for enhanced ion spectra generation and detection in ion mobility spectrometry
10/31/1990EP0395447A2 Surface potential measuring system
10/31/1990EP0395349A2 Moisture sensitive element
10/31/1990EP0395319A1 Process for the separation of macromolecules
10/31/1990EP0395253A2 Method and apparatus for monitoring characteristics of electrically conductive coatings on optical fibers
10/31/1990EP0395245A2 Apparatus for troubleshooting photoimage plating problems in printed circuit board manufacturing
10/31/1990EP0395222A2 Improvements relating to biosensors
10/31/1990EP0395218A2 Window burner for polymer coated capillary columns
10/31/1990EP0395137A2 Sensor with antigen chemically bonded to a semiconductor device
10/31/1990EP0395136A2 Radiation-sensitive composition and use thereof in the preparation of electrochemical ion sensors
10/31/1990EP0394990A2 Dry-operative ion-selective electrode
10/31/1990EP0394914A1 Mechanical stage support especially for a tunneling microscope
10/31/1990EP0394591A2 Rotatable eddy current roller head
10/31/1990EP0394411A1 An electrochemical sensor
10/31/1990EP0394312A1 A portable blood chemistry measuring apparatus.
10/31/1990EP0394272A1 Ptc temperature sensors, process for producing ptc temperature-sensing elements for ptc temperature sensors.
10/31/1990EP0195794B1 Method for detecting surface defects by means of foucault currents and device for implementing such method
10/31/1990DE3913621A1 Exhaust gas sensor for engine control - compares signals of catalytic heat effect sensor and similar, non-catalytic component, monitors individual engine cylinders
10/31/1990CN1046603A Reaction monitoring probe for producing azo dimethyamide
10/31/1990CN1046602A Probe for measuring negative offset of under ground pipe-line cathode protection potential
10/31/1990CN1010256B Quick qualitative analysis method for metallic molybdenum
10/31/1990CN1010255B Thin slice type electrode
10/31/1990CN1010254B Reference electrode
10/31/1990CN1010253B Closed flow system solid-state electrode microelectrolytic bath
10/31/1990CN1010252B Six-ring electrode technology for measuring biological dielectric character
10/31/1990CN1010251B Method for measuring ion density and like, graduated piece and graduation of measurer used therein
10/31/1990CN1010250B Sno2 thin film gas-sensitive component
10/30/1990US4966854 Radio labelled dye composition for detecting proteins in gels
10/30/1990US4966792 Method of producing gradient gel medium membrane for electrophoresis
10/30/1990US4966678 Compositions and electrodes comprising organotin ionophores
10/30/1990US4966675 Polarizable electrode
10/30/1990US4966674 Cerium oxycompound, stable anode for molten salt electrowinning and method of production
10/30/1990US4966671 Method and apparatus for electrochemical analysis
10/30/1990US4966670 Electrochemical cell for measuring ionic activity in a solution and its method of use
10/30/1990US4966667 Gel transfer process and composite
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