Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
09/1987
09/12/1987CN86203453U Gas sensor for carbon monoxide at normal atmosperic temp.
09/11/1987WO1987005230A1 Electrophoresis gel and method of production
09/10/1987DE3622496C1 Solid electrode immersion cell - for determn. of oxygen activity in metals esp. steel melts
09/09/1987EP0236153A1 Method and apparatus for conducting electrophoresis and subsequent transfer
09/09/1987EP0235478A2 Borehole casing diagnostic apparatus
09/09/1987EP0235470A2 Ion-sensitive fet sensor
09/09/1987EP0235153A1 Method for biochemical assay.
09/09/1987EP0107725B1 Apparatus and method for determining the charge condition of a fluid
09/09/1987EP0103599B1 Ion selective measuring electrode device
09/09/1987CN86101309A Hydroscope for loose substances
09/08/1987US4692702 Device with two generators for measuring the gradients of magnetic fields
09/08/1987US4692701 Method of testing steam turbine rotors to determine if they should be retired because of embrittlement
09/08/1987US4692698 Method and device including a bed of ferromagnetic fibers and magnetic flux sensor for measuring the amount of magnetic particles on a liquid
09/08/1987US4692685 Electrical measuring apparatus, and methods for determining the condition or identity of biological material
09/08/1987US4692429 Catalyst composition and multi-functional sensor
09/08/1987US4692220 Oxidation at an iridium electrode
09/03/1987DE3606500A1 Selective gas sensor for flammable (combustible, inflammable) gases
09/02/1987EP0235118A2 Method of determining relevant parameters for the metallurgie and/or mechanical properties of a magnetisable test-piece by non-destructive, magneto-inductive method, as well as device for carrying out the method
09/02/1987EP0235024A2 Enzyme sensor and method of manufacture same
09/02/1987EP0235016A2 Oxygen sensor
09/02/1987EP0234836A1 Pulsed-field gradient gel electrophoretic apparatus
09/02/1987EP0234693A2 A device for measuring stresses in vacuum deposition coatings
09/02/1987EP0234560A2 Mass spectrometer with remote ion source
09/02/1987EP0234251A2 Method and device for detecting combustible gas
09/02/1987EP0234041A1 Differential conductivity sulfate monitor
09/02/1987CN86108611A Audio detector for dental canal length
09/02/1987CN86100811A Slag-testing device
09/01/1987US4691186 Aging treatment for semiconductor gas sensor
09/01/1987US4691169 Electrode assembly especially adapted to utilizing a magnetic field for measuring electric conductivity of treated non-polar liquids
09/01/1987US4691168 High purity water calibrating device
09/01/1987US4691167 Apparatus for determining the activity of an ion (pIon) in a liquid
09/01/1987US4690749 Polymer-coated surfaces to control surface zeta potential
09/01/1987US4690006 Jig for carrying out movement and alignment within a pipe
09/01/1987CA1226333A1 Combination ph/reference electrode with improved temperature response
09/01/1987CA1226332A1 End point determination for chemical cleaning process
08/1987
08/27/1987WO1987005112A1 Method and apparatus for non-destructive materials testing and magnetostructural materials investigations
08/27/1987WO1987005111A1 Method in staining and destaining of electrophoretic gels
08/27/1987WO1987004948A1 Method of supplying buffer solutions to electrophoretic separation procedures
08/27/1987DE3706079A1 Oxygen measuring sensor
08/27/1987DE3619491C1 Method and apparatus for fractionating mixtures of substances
08/26/1987EP0233579A2 Method and apparatus for determining small quantities of gases or vapours in gas mixtures
08/25/1987US4689591 Magnet assemblies for use in magnetic resonance imaging
08/25/1987US4689571 Specific gravity detecting device for lead-acid battery
08/25/1987US4689558 Non-destructive method of measuring the fatigue limit of ferromagnetic materials by use of the mechanical Barkhauser phenomenon
08/25/1987US4689552 Method and device for detecting insulation damage to a buried object
08/25/1987US4689308 Two separate vials for holding tow fluids and selective mixing thereof
08/25/1987US4689136 For exhaust gases from automobiles
08/25/1987US4689135 Membrane with hermetic sealing covering
08/25/1987US4689132 Determing acid-soluble aluminum in steel sample
08/25/1987US4689126 Method of converting a precursor ceramic solid into a solid ceramic hydronium conductor
08/25/1987US4689122 Gas detection apparatus and method with novel electrolyte membrane
08/25/1987US4688580 Non-invasive electromagnetic technique for monitoring bone healing and bone fracture localization
08/25/1987US4688437 Electrode holder assembly
08/25/1987CA1226077A1 Mass spectrometer and method
08/25/1987CA1226036A1 Analytical equipment and sensor electrodes therefor
08/20/1987DE3604594A1 Thin-film gas sensors having high measuring sensitivity as multilayer systems based on dipped indium oxide layers for detection of gas traces in carrier gases
08/19/1987EP0233053A2 Method of detecting electrophoretically separated oligonucleotides
08/19/1987EP0232581A1 Capillary switch-valve
08/19/1987EP0232566A1 Device for measuring moisture tension of a substrate
08/19/1987EP0232513A2 Process for producing a sensitive phase in a solid state chain which contains a solid ionic conductor, and ionic conductor therefor
08/19/1987EP0232459A1 Hydrocarbon concentration sensor
08/19/1987CN86207503U Ion meter
08/19/1987CN86205630U Moisture content detector for silkworm cocoon
08/19/1987CN86102192A Fast measuring method and apparatus for cast iron
08/18/1987US4688021 Combined smoke and gas detection apparatus
08/18/1987US4688015 Gas sensor with ceramics substrate having surface-carried ceramics particles
08/18/1987US4688014 Semiconductor type gas sensor having two terminals
08/18/1987US4687997 Container with safety features for cleansing medical devices
08/18/1987US4687992 Method for testing parts, especially of nuclear plants, by means of eddy current
08/18/1987US4687986 Method and apparatus for measuring the streaming potential of a particle suspension
08/18/1987US4687500 Infrared radiation transparent
08/18/1987US4686857 Method and apparatus for evaluating the performance of dielectric substances
08/18/1987US4686847 Method and vibrating capacitor apparatus for analysis of a substance or of at least one component of a mixture of substances
08/18/1987CA1225588A1 Gel composition for determining the fibrinogen content in plasma by electroimmunodiffusion
08/13/1987WO1987004792A1 Capacitive sensor circuit
08/13/1987DE3702501A1 Sterilisable pH electrode for monitoring microbiological processes
08/12/1987EP0232105A2 Continuous detection of radiolabeled signals in electrophoresis and methods therefor
08/12/1987EP0231865A2 Arrangement for nondestructive testing of cylinder-shaped work pieces
08/12/1987EP0231766A2 Proton conductor gas sensor and method of detecting gas using the same
08/12/1987EP0231609A2 Pure water conductivity sensor
08/12/1987EP0231476A1 Selectively ion-permeable electrodes for analyzing selected ions in aqueous solution
08/12/1987EP0231405A1 Method and device for determining the load of charcoal filters
08/12/1987EP0231305A1 Sensors for selective determination of components in liquid or gaseous phase.
08/12/1987EP0231239A1 Method for electrophoretic separation.
08/12/1987EP0231231A1 Process for detecting toxic matter in air which enters a cabin or similar enclosure where persons are present.
08/12/1987CN86209001U Multipurpose convenient electrophoresis set
08/12/1987CN86205337U Electronic instrument for the diagnosis of recessive mastitis
08/11/1987US4686479 Apparatus and control kit for analyzing blood sample values including hematocrit
08/11/1987US4686471 System for online-detection of the transformation value and/or flatness of steel or a magnetic material by detecting changes in induced voltages due to interlinked magnetic fluxes in detecting coils
08/11/1987US4686453 Heat decomposition ot carbon deposit; measure electric resistance
08/11/1987US4686368 Apparatus and method for reading two-dimensional electrophoretograms containing β-ray-emitting labeled compounds
08/11/1987US4686367 Method of operating quadrupole ion trap chemical ionization mass spectrometry
08/11/1987US4686365 Fourier transform ion cyclothon resonance mass spectrometer with spatially separated sources and detector
08/11/1987US4686012 Ion-selective measuring electrode device
08/11/1987US4686011 Method for the protection of and/or monitoring of changes in a reference system in analytical measuring engineering, and reference system with a reference electrode
08/11/1987US4685569 Method of detecting and sorting pieces of insulating materials admixed in small pieces of conductive materials
08/11/1987US4685465 Electrode device for transcutaneously measuring a blood gas parameter and for sensing a bioelectrical signal and an electrode assembly comprising such an electrode device
08/11/1987US4685325 Measurement of gas content in molten metal using a constant current source
08/11/1987CA1225434A1 Method and apparatus for integrally heated electrochemical sensors
08/05/1987EP0231131A2 Inductively coupled plasma mass spectrometer