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