Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
09/1999
09/29/1999EP0945724A2 Protection tubes for sensors or glow elements
09/29/1999EP0945723A1 Process for preparing electro-conductive polymer films by doping neutral polymers
09/29/1999EP0945722A2 Semiconductor gas sensor
09/29/1999EP0944884A1 Device and method using dielectrokinesis to locate entities
09/29/1999EP0944827A1 Electromagnetic field perturbation sensor and methods for measuring water content in sheetmaking systems
09/29/1999EP0944826A1 Humidity sensor with differential thermal detection and method of sensing
09/29/1999EP0944825A1 Buffer for analyzing small inorganic cations by capillary electrophoresis
09/29/1999EP0944824A1 Device and method for testing electrosurgical instruments
09/29/1999EP0944820A1 Multi-array, multi-specific electrochemiluminescent testing
09/29/1999EP0944739A1 Method and apparatus for analysis of chromatographic migration patterns
09/29/1999EP0944492A1 Capacitive sensor assembly
09/29/1999EP0944316A2 Blend of appropriate preservative agents for analysis instruments with ion-selective electrodes
09/29/1999EP0861460B1 Device and process for adjusting ion concentrations
09/29/1999EP0722566A4 A method for characterizing polymer molecules or the like
09/29/1999EP0606225B1 Sequencing of protein immobilized on polytetrafluoroethylene support
09/29/1999CN2341146Y Semiautomatic magnetic powder flow detector for rollers
09/29/1999CN2341145Y Household speech alarming controller for harmful gas leakage
09/29/1999CN1230255A Methods and materials for optimization of electronic hybridization reactions
09/28/1999US5959505 Crystal oscillator for measuring crystal impedance of a crystal unit
09/28/1999US5959457 Circuit arrangement for measuring the resistance of a resistance sensor
09/28/1999US5959455 Fluid conductively sensor
09/28/1999US5959191 Sensor arrays for detecting analytes in fluids
09/28/1999US5958787 Gas analysis, oxidation
09/28/1999US5958779 Coulometric analysis
09/28/1999US5958694 Microscale separation channel having first and second ends for separating nucleic acid fragments by size; nested sets of first and second nucleotide termination fragments at different concentrations connected to separation channel
09/28/1999US5958340 Sensor having a thick film of sintered copper, barium, titanium and cerium oxides acts as a conductivity sensor which responds to a change in concentration of carbon dioxide by increasing or decreasing resistance; inexpensive, accurate
09/28/1999US5958215 Detection of purine and pyrimidine nucleotides and underivatized nucleic acids by sinusoidal voltammetry
09/28/1999US5958214 Electrochemical sensor with a solid electrolyte for measuring the gas concentration
09/28/1999US5958203 Microfluidic system comprising substrate having two intersecting channels of different depths and an electroosmotic fluid direction system
09/28/1999US5958202 Capillary electrophoresis enzyme immunoassay
09/28/1999US5958201 Sodium ion-selective-electrode membrane having extended uselife
09/28/1999US5958199 Biosensor
09/28/1999US5957579 Microfluidic systems incorporating varied channel dimensions
09/28/1999US5956940 Method and apparatus for monitoring deterioration of internal combustion engine exhaust gas purifier
09/28/1999US5956841 Assembling method for a heater-equipped air-fuel ratio sensor
09/23/1999WO1999047925A2 Methods and compositions for diagnosis of rheumatoid arthritis
09/23/1999WO1999047915A1 Method for zero point stabilization of an exhaust-gas sensor and an arrangement for carrying out said method
09/23/1999WO1999047912A1 Ion mobility storage trap and method
09/23/1999WO1999047908A1 Micromechanical potentiometric sensors
09/23/1999WO1999047905A2 Handheld sensing apparatus
09/23/1999WO1999047255A1 Unitary chemical processing device
09/23/1999WO1999038874A3 Electrophoretic nucleic acid purification method
09/23/1999WO1999036786A3 Flow analysis cell and layered sensor pertaining thereto
09/23/1999WO1999034203A9 Capillary electrophoretic method to detect target-binding ligands and to determine their relative affinities
09/23/1999DE19912469A1 Detecting element resistance of a gas resistance sensor, used e.g. for detecting oxygen concentration in internal combustion engine exhaust gas
09/23/1999DE19811622A1 Laboratory instrument incorporating split test card housing
09/23/1999DE19811582A1 Electrochemiluminescence assay, especially for biological substances, with long measurement period
09/23/1999DE19810483A1 Offset determination of hydrocarbon or nitrogen oxide sensor in catalyst-fitted engine exhaust system
09/23/1999CA2323238A1 Methods and compositions for diagnosis of rheumatoid arthritis
09/23/1999CA2322518A1 Micromechanical potentiometric sensors
09/22/1999EP0943092A1 Gas sensors
09/22/1999EP0943090A1 Electrochemical cell
09/22/1999EP0912886A4 Fourier detection of species migrating in a microchannel
09/22/1999EP0749578B1 Notched spacer for slab-gel electrophoresis
09/22/1999CN2339988Y Passive soil-water-content quickly detecting instrument
09/22/1999CN2339177Y Electric device for identifying heat period of cow
09/21/1999US5955887 Impedance type ice detector
09/21/1999US5955886 Microliter-sized ionization device and method
09/21/1999US5955741 Methods of measuring currency limpness
09/21/1999US5955729 Surface plasmon resonance-mass spectrometry
09/21/1999US5955665 Process for monitoring the operativeness of a catalytic converter
09/21/1999US5955656 Measuring sensor
09/21/1999US5955603 Porphyrins and porphyrin synthesis techniques
09/21/1999US5955150 Method for testing materials for use in electroless plating
09/21/1999US5955030 Apparatus for automated DNA sequencing
09/21/1999US5954934 Cassette for electrophoretic gels
09/21/1999US5954932 Capillary gel electrophoresis apparatus having photodetector cavity filled with high viscosity buffer within which fluorescence of electrophoresed fluorophore-labeled dna is detected
09/21/1999US5954931 Electrophoresis apparatus and method involving parallel channels
09/21/1999US5954930 Reference electrode for electrolytic cells having an ion-conducting solid electrolyte
09/21/1999US5954923 Electromagnetic field perturbation sensor and methods for measuring water content in sheetmaking systems
09/21/1999US5953907 Method of controlling an engine exhaust gas system and method of detecting deterioration of catalyst/adsorbing means
09/16/1999WO1999046590A1 Capillary electrophoresis device
09/16/1999WO1999046589A1 Improvements to multiple capillary electrophoresis devices with detection in capillary output
09/16/1999WO1999046587A1 Water quality measuring apparatus with a sensing wafer clamped between two o-rings
09/16/1999WO1999046586A1 Reference electrode
09/16/1999WO1999046585A1 Heated electrochemical cell
09/16/1999WO1999046047A2 Detection and characterization of microorganisms
09/16/1999WO1999031496A9 Capillary electrophoretic methods to detect new biologically active compounds in complex biological material
09/16/1999WO1999031481A3 Transport detector with oxide surface coating
09/16/1999WO1999028852A9 Security device having multiple security features and method of making same
09/16/1999WO1999021021A3 Semiconductor material characterizing method and apparatus
09/16/1999WO1998056956A8 Apparatus and methods for correcting for variable velocity in microfluidic systems
09/16/1999DE19811021A1 Verfahren zum Bestimmen des Feuchtigkeitsgehalts von textilen Gütern in einem Wäschetrockner A method for determining the moisture content of textile articles in a tumble dryer
09/16/1999DE19810736A1 High impedance input for connecting voltage source to voltage-processing circuit, e.g. for electrochemical sensor
09/16/1999DE19810588A1 Structure for storing information and for selectively binding molecules
09/16/1999DE19808521A1 Gas sensor e.g. for monitoring internal combustion engine exhaust
09/16/1999CA2322757A1 Heated electrochemical cell
09/16/1999CA2290135A1 Improvements to multiple capillary electrophoresis devices with detection in capillary output
09/16/1999CA2265304A1 A method and instrument for detection and measurement of low levels of gases with applications in chemical defense and environmental monitoring
09/15/1999EP0942282A1 Apparatus for measuring characteristics of a textile product
09/15/1999EP0942281A2 Measuring circuit for determining the concentration of one or more gases in a gaseous mixture
09/15/1999EP0942280A1 Automatic measuring device for the concentration of a developing agent
09/15/1999EP0942279A2 Multilayered air-fuel ratio sensing element
09/15/1999EP0942278A2 Biosensor, iontophoretic sampling system and methods of use thereof
09/15/1999EP0942277A2 Anhydrous zinc antimonate semiconductor gas sensor and method for producing the same
09/15/1999EP0942094A1 Method for determining the moisture content of textile articles in a laundry drier
09/15/1999EP0941477A1 Gels, methods and apparatus for identification and characterization of biomolecules
09/15/1999EP0941476A1 Method for operating a gas sensor
09/15/1999EP0941475A1 Cassette for electrophoresis system
09/15/1999EP0941473A1 Capacitive measuring system