| Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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| 01/08/1990 | EP0285657A4 Debris detector. |
| 01/04/1990 | DE3822194A1 Humidity sensor |
| 01/04/1990 | DE3822025A1 Arrangement and method for sensor differentiation and recognizing different sensor types |
| 01/04/1990 | DE3822022A1 Arrangement for expanding the range of chemical sensors |
| 01/03/1990 | EP0349403A2 Smoke detector with an integrated address circuit |
| 01/03/1990 | EP0349263A2 Analyzing means and method |
| 01/03/1990 | EP0349114A2 Coin validator |
| 01/03/1990 | EP0349024A1 A method for the simultaneous determination of DNA sequence variations at a large number of sites, and a kit therefor |
| 01/03/1990 | EP0348739A1 Probe for testing tubes, particularly U-tubes of a heat exchanger |
| 01/03/1990 | EP0348624A2 Method and apparatus for the detection of misformed curls in can ends |
| 01/03/1990 | EP0348606A2 Method and apparatus for verifying the presence of ferromagnetic components in an assembly |
| 01/02/1990 | US4891675 Developer density detection device |
| 01/02/1990 | US4891629 Binary gas analyzer instrument and analysis method |
| 01/02/1990 | US4891597 Synchronous detection and location of insulation defects |
| 01/02/1990 | US4891591 Nonintrusive method and apparatus for monitoring the cure of polymeric materials |
| 01/02/1990 | US4891574 Hygrometer with plural measuring bones and redundancy system circuit |
| 01/02/1990 | US4891245 Electrophoretic display particles and a process for their preparation |
| 01/02/1990 | US4891125 Reference electrode and method of making it |
| 01/02/1990 | US4891124 Half-cell, liquid junction |
| 01/02/1990 | US4891123 Electrochemical analyzer for measuring the concentration of atoms or molecules in a fluid and method of making same |
| 01/02/1990 | US4891122 Air fuel ratio detecting device |
| 01/02/1990 | US4891121 Internal combustion engines |
| 01/02/1990 | US4891119 Medium for electrophoresis having improved physical properties |
| 01/02/1990 | US4891104 Enzymatic electrode and electrode module and method of use |
| 01/02/1990 | US4891102 Method of determining carbon dioxide in the presence of oxygen |
| 01/02/1990 | US4890494 Atmospheric sensor |
| 01/02/1990 | US4890459 For detecting air leaks |
| 01/02/1990 | CA1264184A1 Scanning device for inspection of header tube holes |
| 12/28/1989 | WO1989012833A1 Inhomogeneity detection system |
| 12/28/1989 | WO1989012827A1 Control for blood gas/calcium analysis instrumentation |
| 12/28/1989 | WO1989012821A1 Gas testing apparatus |
| 12/28/1989 | WO1989012694A1 Determining dna sequences by mass spectrometry |
| 12/28/1989 | WO1989012644A1 Endotoxin binding protein and uses thereof |
| 12/28/1989 | WO1989012490A2 Composite membrane |
| 12/28/1989 | DE3820881A1 Apparatus for measuring the oxygen partial pressure |
| 12/27/1989 | EP0348243A2 Calibration of thermal conductivity and specific heat devices |
| 12/27/1989 | EP0348239A1 Scanning tunneling microscope |
| 12/27/1989 | EP0347755A2 Charge-modified hydrophobic membrane materials and method for making the same |
| 12/27/1989 | EP0347739A2 Scanning tunneling microscope and surface topographic observation method |
| 12/27/1989 | EP0347579A2 Device having a specific support structure for receiving, analysing and treating samples |
| 12/27/1989 | EP0347460A1 Ion sensor |
| 12/27/1989 | EP0347452A1 Counterflow leak detector with high and low sensitivity operating modes. |
| 12/27/1989 | CN2050167U Shattering emulsion electric field assessment instrument |
| 12/27/1989 | CN1038377A Manufacture of zinc metastannate alcohol-sensitive element |
| 12/27/1989 | CN1038341A Explosion-proof and explosion-insulation blaster |
| 12/27/1989 | CN1038309A Gene detecting method and apparatus therefor |
| 12/27/1989 | CA1264065A1 Differential conductivity sulfate monitor |
| 12/26/1989 | US4890247 Automatic electrophoresis apparatus and method |
| 12/26/1989 | US4889814 Through a gas-chromatographic separation column over a bed of mercuric oxide |
| 12/26/1989 | US4889679 Eddy current probe apparatus having an expansible sleeve |
| 12/26/1989 | US4889613 Ion selective electrode; sample container with transport mechanism |
| 12/26/1989 | US4889612 Dielectric substrate, non-metal conductor, and ion selective membrane |
| 12/26/1989 | US4889611 Flow cell |
| 12/26/1989 | US4889610 Pop up electrophoresis apparatus and method |
| 12/26/1989 | US4889608 Electrode system |
| 12/26/1989 | US4889606 Electrophoresis and transfer for |
| 12/26/1989 | US4889561 Cellulose acetate crosslinked with isocyanates, epoxy groups, carboxyl groups; heat resistance |
| 12/26/1989 | US4889098 Air-fuel ratio detecting apparatus for an internal combustion engine equipped with a heater controller |
| 12/26/1989 | US4888948 Monitoring of foreign object ingestion in engines |
| 12/21/1989 | DE3821779A1 Device for measuring the condition of muscle flesh |
| 12/21/1989 | DE3816315A1 Device for monitoring the hydraulic fluid in a brake system, especially a motor-vehicle brake system |
| 12/20/1989 | EP0347314A2 Method for the automatic on-line calibration of a sensor for measuring the concentration of an electrochemical component dissolved in a liquid phase |
| 12/20/1989 | EP0347125A2 Parallel plate dielectric analyzer |
| 12/20/1989 | EP0346933A2 Use of electrically conductive water-in-oil microemulsions based on perfluorinated compounds as catholytes in electrochemical processes |
| 12/20/1989 | EP0346932A2 Use of electrically conductive oil-in-water microemulsions based on perfluorinated compounds as catholytes in electrochemical processes |
| 12/20/1989 | EP0346689A2 Apparatus for the eddy current testing of the pipes in a heat exchanger |
| 12/20/1989 | EP0346384A1 Method and system for determining organic matter in an aqueous solution. |
| 12/20/1989 | EP0346361A1 Water quality monitoring method and apparatus |
| 12/20/1989 | CN2049772U Coulomb titration pond |
| 12/20/1989 | CN2049771U Locked electrode for measuring electric performances of rubber plasticized tube |
| 12/20/1989 | CN1038169A Method of and apparatus for detecting short-circuit between sheets of pile sheet cores |
| 12/20/1989 | CN1038164A Scale plate of apparatus for measuring ionic concentration and the like and scale method thereof |
| 12/19/1989 | US4888818 Method and apparatus for the determination of the setting process in an inorganic aqueous binder system |
| 12/19/1989 | US4888745 Apparatus for marking individual points of an underwater construction |
| 12/19/1989 | US4888482 Atmospheric pressure ionization mass spectrometer |
| 12/19/1989 | US4888295 Portable system and method combining chromatography and array of electrochemical sensors |
| 12/19/1989 | US4888154 Combination structure for sampling the contents of a reactor vessel including pH monitoring means |
| 12/19/1989 | US4888098 Passing current through electrochemical cell containing electrode coated with ion exchange material to replace ionic species |
| 12/19/1989 | US4887576 Method of determining acceptability of an exhaust concentration sensor |
| 12/19/1989 | US4887455 Gas sensor |
| 12/19/1989 | US4887453 Method and system for on-line calibration and validation of process instrumentation |
| 12/14/1989 | WO1989012227A1 Surface-ionization detector for gas mixture analysis |
| 12/14/1989 | WO1989012226A1 Disposable ion activity analyzer |
| 12/14/1989 | WO1989012225A1 Halogenated surface with reduced protein interaction |
| 12/13/1989 | EP0346127A2 Integrated heatable sensor |
| 12/13/1989 | EP0345824A1 Method for producing ceramics |
| 12/13/1989 | EP0345782A2 Fluid analysis with particulate reagent suspension |
| 12/13/1989 | EP0345770A1 Gas sensor for measuring airfuel ratio and method of manufacturing the gas sensor |
| 12/13/1989 | EP0345568A2 Apparatus for detecting gases |
| 12/13/1989 | EP0345562A2 Method and apparatus for processing measuring data |
| 12/13/1989 | EP0345347A1 Fet electrode |
| 12/13/1989 | CN2049357U Automatic condictioned weight tester |
| 12/13/1989 | CN1037968A Multifunctional xoygen measurer for tissue and cell |
| 12/13/1989 | CN1037967A Binary gas analyzer instrument and analysis method |
| 12/12/1989 | US4887025 Method and apparatus for the non-destructive checking of spot welds between metal sheets produced by electric welding |
| 12/12/1989 | US4887023 Capacitive sensor and circuit for detecting contamination of guard electrode |
| 12/12/1989 | US4886740 Enzyme-electrode sensor with organosilane treated membrane |
| 12/12/1989 | US4886589 Electrophoresis method and apparatus for separating particles in a separation medium |
| 12/12/1989 | US4886584 Potential measuring method and apparatus having signal amplifying multiple membrane electrode |
| 12/12/1989 | US4886552 Electroconductive cleaning solution, oxidation; measuring potential difference |