Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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10/07/1980 | US4227190 Water alarm for monitoring floor moisture |
10/07/1980 | US4227151 Measurement and monitoring of the electrical conductivity of liquor samples |
10/07/1980 | US4227086 Detectors of parameters adapted to act on the force of attraction between an electret and an electrode |
10/07/1980 | US4226692 Solid state combustion sensor |
10/07/1980 | US4226675 Method and apparatus for monitoring and measuring a gas |
10/07/1980 | US4226112 Method and apparatus for analyzing gases |
10/07/1980 | CA1087350A1 Monitoring suspension stability |
10/07/1980 | CA1087271A1 Detecting different fluids, such as oil at the surface of water |
10/07/1980 | CA1087247A1 Electrostatic charge measurement |
10/02/1980 | WO1980002040A1 Method of controlling the quality of drilling mud |
10/02/1980 | WO1980002038A1 Method of maintaining preset parameters of drilling mud |
10/01/1980 | EP0016638A2 Eddy current mapping probe and method of operating same |
10/01/1980 | EP0016633A2 Blood gas controls composition, method and apparatus |
10/01/1980 | EP0016561A1 Mass spectrometers |
10/01/1980 | EP0016552A1 Method of magnetic separation of cells and the like, and microspheres for use therein |
10/01/1980 | EP0016423A1 Gas detector |
10/01/1980 | EP0016415A1 Method for measurement and regulation of the concentration of copper, formaldehyde and sodiumhydroxide in an electroless copper deposition bath and sampling apparatus for use in this method |
10/01/1980 | EP0016414A2 Circuit for an amperometric titration |
10/01/1980 | EP0016351A1 Gas detection device for use in an environment where explosions may occur |
10/01/1980 | EP0016121A1 Improvements relating to displacement electrophoresis |
10/01/1980 | EP0015937A1 System for analyzing chemical and biological samples |
09/30/1980 | US4225842 Resistance type oxygen sensor |
09/30/1980 | US4225820 Apparatus for diagnosing milk secretion disorders in animals |
09/30/1980 | US4225634 Method for manufacturing gas composition detector |
09/30/1980 | US4225559 Ceramic element sensor |
09/30/1980 | US4225410 Integrated array of electrochemical sensors |
09/30/1980 | US4225405 Process for separation and collection of viable female and male spermatozoa |
09/30/1980 | US4225395 Removal of oxides from alkali metal melts by reductive titration to electrical resistance-change end points |
09/30/1980 | US4224849 Device for detection of metal in a moved strand |
09/30/1980 | CA1086616A1 Process and device for the continual determination of the concentration of an enzyme substrate |
09/23/1980 | US4224595 Graded particle adsorption type sensor and method of improving performance of an adsorbing sensor |
09/23/1980 | US4224567 Apparatus for measuring resistance change only in a cell analyzer and method for calibrating it |
09/23/1980 | US4224566 Pulsed electron attachment conductivity detector and carcinogen monitor for liquid chromatography |
09/23/1980 | US4224529 Automatic polarity changing device |
09/23/1980 | US4224280 Stannic oxide films with antimony or bismuth and with platinum, aluminum or boron; platinum film |
09/23/1980 | US4224134 Vertical gel slab electrophoresis apparatus and method therefor |
09/23/1980 | US4224125 Enzyme electrode |
09/23/1980 | US4224114 Method and apparatus for detecting zinc ion activity |
09/23/1980 | US4224113 Method of detecting air/fuel ratio in combustor by detecting oxygen in combustion gas |
09/23/1980 | US4223552 Apparatus and method for sensing a substance on a liquid surface |
09/23/1980 | US4223550 Carbon monoxide detecting apparatus |
09/23/1980 | US4223549 Oxygen monitoring circuit with built in testing means |
09/23/1980 | CA1086225A1 Syphilis antibody diagnosis by antigen membrane and potentiometric method |
09/17/1980 | EP0015822A1 Digital eddy current apparatus for testing specimens |
09/17/1980 | EP0015548A2 Method and apparatus for evaluating electroless plating |
09/17/1980 | EP0015495A1 Electron capture detector |
09/16/1980 | US4223305 Single station type ionization smoke sensor |
09/16/1980 | US4223293 Terminal pin arrangement for an exhaust gas sensor |
09/16/1980 | US4222843 Coloring-decoloring apparatus for electrophoretic systems |
09/16/1980 | US4222840 Heated solid electrolyte oxygen sensor |
09/16/1980 | US4222836 Specific gel thickness and citrate buffer concentration |
09/16/1980 | US4222670 Liquid sample analyzer |
09/16/1980 | CA1085924A1 Solid electrolyte gas sensor having a protective bonding layer |
09/16/1980 | CA1085923A1 Two fire ceramic sealed oxygen sensing device and method of forming same |
09/16/1980 | CA1085772A1 Apparatus for electrophoresis separation |
09/16/1980 | CA1085723A1 Electrochemical process and apparatus to control the chemical state of a material |
09/09/1980 | US4222026 Exhaust gas sensor having two titania ceramic elements |
09/09/1980 | US4222006 Thermal composition circuit for electrochemical detectors |
09/09/1980 | US4221827 Method of manufacturing a gas sensor |
09/09/1980 | US4221651 Sponges |
09/09/1980 | US4221650 Solid electrolyte oxygen sensors |
09/09/1980 | US4221125 Apparatus and method for detecting the presence of a substance on a liquid surface |
09/09/1980 | CA1085458A1 Oxygen concentration detector |
09/09/1980 | CA1085457A1 Oxygen concentration detector |
09/09/1980 | CA1085456A2 Disposable sample card with electrodes |
09/09/1980 | CA1085279A1 Measurement of alcohol levels in body fluids |
09/04/1980 | WO1980001843A1 Method and apparatus for testing metal tapes |
09/04/1980 | WO1980001840A1 Probe for measuring the partial pressure of oxygen in gases |
09/04/1980 | WO1980001839A1 Gas concentration detector |
09/03/1980 | EP0015075A1 Bilumen catheter comprising a polarographic sensor and method of manufacturing it |
09/03/1980 | EP0015062A1 Method for connecting electrical wire to a terminal pin |
09/03/1980 | EP0014797A1 Liquid transport device, method of transporting a liquid, method of analyzing a liquid and test element for use in analysis of a liquid |
09/03/1980 | EP0014729A1 A digital eddy current apparatus for identifying specimens of electrically conductive material of unknown composition |
09/02/1980 | US4220921 Conductivity probe for viscous liquids |
09/02/1980 | US4220920 Electrodeless conductivity measuring system |
09/02/1980 | US4220915 Resistivity measurement system |
09/02/1980 | US4220517 Catalytic metal electrodes, nonconductive heat-resistant hermetic seal |
09/02/1980 | US4220516 Oxygen sensor |
09/02/1980 | US4220515 Apparatus for automatically determining the amount of one or more substances in a liquid |
09/02/1980 | US4220158 Transcutaneous probe |
09/02/1980 | US4220041 Alien liquid detector and control |
09/02/1980 | CA1084997A1 Gas sensor with protective coating and method of forming same |
09/02/1980 | CA1084730A1 Method and apparatus for measuring the o.sub.2 content of a gas |
08/26/1980 | US4219805 Lubricating oil debris monitoring system |
08/26/1980 | US4219774 Automatic eddy current surface probe for fastener holes |
08/26/1980 | US4219772 Apparatus for nondestructive testing of small blind bores utilizing the dry magnetic particle method |
08/26/1980 | US4219399 For determining oxygen content of exhaust gas |
08/26/1980 | US4219398 Atomizing absorption liquid together with gas |
08/26/1980 | US4219395 Electrochemical fractionation process |
08/26/1980 | US4219359 Sintered body of zirconia for oxygen concentration sensor |
08/26/1980 | US4218922 Acoustic inspection of solder joints |
08/20/1980 | EP0014533A1 Exhaust gas sensor assembly |
08/20/1980 | EP0014532A1 Exhaust gas sensor |
08/20/1980 | EP0014374A1 Method of automatically determining by electrochemical means the end point of a titration |
08/20/1980 | EP0014204A1 Metal type detector for drill pipes. |
08/19/1980 | US4218746 Method and apparatus for calibrating ion concentration measurement |
08/19/1980 | US4218651 Apparatus for detecting longitudinal and transverse imperfections in elongated ferrous workpieces |
08/19/1980 | US4218299 Short path liquid junction structure for electrochemical electrodes |
08/19/1980 | US4218298 Selective chemical sensitive FET transducer |
08/19/1980 | US4218297 Electrochemical gauge for oxygen having an internal reference and solid electrolyte |