| Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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| 09/05/1990 | EP0385964A2 Biosensor array |
| 09/05/1990 | EP0385597A2 Measurement of pH and specific ion concentration |
| 09/05/1990 | EP0385569A2 Method and device for detecting charged particles in a gas flow |
| 09/05/1990 | EP0385506A2 Formation of organic membranes |
| 09/05/1990 | EP0385452A1 Carboxylic acid amides which form lipophilic complexes with magnesium ions, method for preparation of the lipophilic magnesium complexes and ion selective components |
| 09/05/1990 | EP0278979A4 Electrode assembly |
| 09/05/1990 | CN1045183A Pencil-type precise ph-meter with automatic temp. compensation |
| 09/05/1990 | CN1045178A Magnetostrictive torque transducer |
| 09/04/1990 | US4954783 Apparatus and method for testing moisture of ear corn |
| 09/04/1990 | US4954778 Eddy current testing system using two samples with different time lags |
| 09/04/1990 | US4954777 Device for defect testing of non-ferromagnetic test samples and for ferromagnetic inclusions |
| 09/04/1990 | US4954238 Electrolytic cell containing cation exchange resin |
| 09/04/1990 | US4954237 Automatic electrophoresis apparatus |
| 09/04/1990 | US4954236 Apparatus and method for gel casting and electrophoresis in a single enclosure |
| 09/04/1990 | US4953393 Transducer |
| 09/04/1990 | US4953387 Ultrathin-film gas detector |
| 09/04/1990 | CA1273716A1 Glow discharge mass spectrometer |
| 09/04/1990 | CA1273603A1 Solid electrolyte for oxygen sensor |
| 08/30/1990 | DE3905993A1 Appliance and method for the purpose of detecting oxidisable and/or reducible gases |
| 08/30/1990 | DE3905530A1 Verfahren zur detektierung von fehlstellen in behaeltern aus elektrisch nicht leitendem material und einrichtung zur durchfuehrung des verfahrens Method for the detection of imperfections in containers made of electrically non-conductive material and device for implementing the method |
| 08/29/1990 | EP0384324A2 Cell for use in flow through type electrode |
| 08/29/1990 | EP0384209A2 Method for the operation of an ionization smoke detector, and ionization smoke detector |
| 08/29/1990 | EP0384195A2 Reagent for coulometrically determining water capacity |
| 08/29/1990 | EP0384090A1 Enzyme biosensor for measuring directly at least one biochemical parameter of the skin |
| 08/29/1990 | EP0384067A2 Electrophoresis plate and method of making same |
| 08/29/1990 | EP0384042A2 Magneto-strictive torque sensor |
| 08/29/1990 | EP0383802A1 Mass spectrometer apparatus |
| 08/29/1990 | EP0268032B1 Solid-state electrode for determination of sodium ion concentrations in solutions |
| 08/29/1990 | CN2061285U Checking device for prevention of fire resulted from rub of shoe sole against ground |
| 08/29/1990 | CN1044989A Auto testing instrument of dry shell amount and water content of fresh silkworm cocoon |
| 08/28/1990 | US4952903 High durability and reliability; used as oxygen detectors |
| 08/28/1990 | US4952875 Eddy current probe with recesses to hold coils and allow the coils to rock and move perpendicular to the longitudinal axis of the probe |
| 08/28/1990 | US4952868 Moisture sensing system for an irrigation system |
| 08/28/1990 | US4952857 Scanning micromechanical probe control system |
| 08/28/1990 | US4952300 Ion selective electrode |
| 08/28/1990 | US4952266 Method of assembling chemical analysis slide |
| 08/28/1990 | US4951873 Safety system |
| 08/28/1990 | US4951800 Coin validator |
| 08/28/1990 | US4951632 Exhaust gas component concentration sensing device and method of detecting failure thereof |
| 08/28/1990 | CA1273399A1 Biological fluid measuring device |
| 08/23/1990 | WO1990009584A1 Method for detecting protective layer on composite materials |
| 08/23/1990 | WO1990009583A1 Ion mobility detector |
| 08/23/1990 | WO1990009582A1 Process and device for monitoring the occurrence or spreading of fractures or cracks in materials, workpieces, component parts, structures or flying objects, in particular in earthquake-prone regions or movement of strata during tunnelling |
| 08/23/1990 | DE4004171A1 Tear detector for mechanical loading test sample - uses capacitive sensor coupled via impedance converter to electronic evaluation circuit |
| 08/23/1990 | DE3939386A1 Unit for detecting concn. of gases in combustible mixture - has measuring head with sensor resistance working according to principle of catalytic thermal colouring |
| 08/23/1990 | DE3904653A1 Measuring cell |
| 08/22/1990 | EP0383459A2 Automated capillary injector |
| 08/22/1990 | EP0383323A1 Tunneling acoustic microscope |
| 08/22/1990 | EP0383322A2 Biochemical analysis apparatus,method for correcting the results of biochemical analyses, and correction value recording medium for the same |
| 08/22/1990 | EP0383217A2 Method and apparatus for recognizing foam |
| 08/22/1990 | EP0383182A2 Probe unit |
| 08/22/1990 | EP0382981A2 Transient electromagnetic method for detecting irregularities on conductive containers having variations in jacket thickness |
| 08/22/1990 | EP0382958A1 Surfactant sensing electrode for potentiometric titrations |
| 08/22/1990 | EP0382846A1 Glass electrode for measuring ion activity in a solution |
| 08/22/1990 | EP0382831A1 Chemically sensitive transducer. |
| 08/22/1990 | EP0382736A1 Receptor membranes. |
| 08/22/1990 | CN2060885U Strip shaped composite electromagnetic induction probe |
| 08/22/1990 | CN2060884U Multi-function mf-10 type water analysing instrument |
| 08/22/1990 | CN1044856A Thin transparent gold-gauze electrode and its prepn |
| 08/22/1990 | CN1009310B Portable compound magnetizer for magnetic particle inspection |
| 08/21/1990 | US4950989 Magnetizing head construction and related method |
| 08/21/1990 | US4950984 Apparatus for determining the proportion of a substance having paramagnetic properties in a mixture of substances |
| 08/21/1990 | US4950957 Extended ion sources and method for using them in an insulation defect detector |
| 08/21/1990 | US4950893 Method and apparatus for enhanced ion spectra generation and detection in ion mobility spectrometry |
| 08/21/1990 | US4950708 Containing diacrylyl compound |
| 08/21/1990 | US4950380 Used as electrochemical pumping type |
| 08/21/1990 | US4950378 Biosensor |
| 08/21/1990 | CA2010018A1 Measurement of ph and specific ion concentration |
| 08/21/1990 | CA1273058A1 Corrosion probe and method for measuring corrosion rates |
| 08/21/1990 | CA1272938A1 Molecular weight standards and methods of use thereof |
| 08/21/1990 | CA1272860A1 Carbonate selective membrane and electrode |
| 08/16/1990 | EP0382600A2 Shielded capacitances standard |
| 08/16/1990 | EP0382532A1 Method for determining crack lengths |
| 08/16/1990 | EP0382426A2 Micro-preparative electrophoresis apparatus |
| 08/16/1990 | EP0382414A2 Method and apparatus for the measurement of the thermal conductivity of gases |
| 08/16/1990 | EP0382196A2 Measurement of electrochemical potential in low electrical conductivity environments |
| 08/16/1990 | EP0382062A2 Electronic circuits including atomic probe |
| 08/16/1990 | EP0381848A2 Apparatus for non destructive examination of materials |
| 08/16/1990 | EP0239613B1 Piezoelectric device for detection of polynucleotide hybridization |
| 08/16/1990 | DE4004173A1 Oxygen sensor protective coating esp. for vehicle engine control - of heat resistant metal oxide impregnated with cerium oxide to control response |
| 08/16/1990 | DE4004172A1 Oxygen sensor for air-fuel mixt. control - has protective metal oxide layer contg. oxygen storing component |
| 08/16/1990 | DE4004170A1 Arrangement to detect material failure in structural materials - having probe elements, differential amplifier computer and recording or warning signal unit |
| 08/14/1990 | US4949037 System for detecting metal in articles using phase change of detection signals |
| 08/14/1990 | US4948962 Plasma ion source mass spectrometer |
| 08/14/1990 | US4948727 Determination of presence or content of n-acylated primary aromatic amine by measuring current flow of hydrolysis products |
| 08/14/1990 | US4948680 Rare earth compound |
| 08/14/1990 | US4948506 Physicochemically functional ultrathin films by interfacial polymerization |
| 08/14/1990 | US4948496 Gas sensor |
| 08/14/1990 | US4948492 High pressure reference electrode for nuclear reactors |
| 08/14/1990 | US4948491 Oxygen sensor |
| 08/14/1990 | US4948490 Gas detectors |
| 08/14/1990 | US4948481 Separating in column on support, migrating out using current, feeding to multielectrode collector through detector and distributor |
| 08/14/1990 | US4948480 Dissolving acrylamide copolymer in water, adding buffer, adding crosslinking agent from separate package |
| 08/14/1990 | US4948473 Electroconductive core, semipermeable membrane including a polymer, plasticizer, and an ion exchamger |
| 08/14/1990 | US4948263 Dew-point sensor |
| 08/14/1990 | US4947885 Brine monitor |
| 08/14/1990 | US4947819 Air-fuel ratio controller of internal combustion engine |
| 08/14/1990 | US4947678 Method for measurement of viscosity change in blood or the like and sensor thereof |
| 08/14/1990 | CA2008494A1 Automated capillary injector |
| 08/14/1990 | CA1272779A1 Sensor with periodic heating |