| Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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| 01/20/1981 | US4246085 Fractionation of proteins |
| 01/20/1981 | US4245506 Porous membrane humidity sensor |
| 01/20/1981 | CA1094232A1 Apparatus for the in-situ inspection of tubes while submerged in a liquid |
| 01/20/1981 | CA1094231A1 Detectors of parameters adapted to act on the force of attraction between an electret and an electrode |
| 01/20/1981 | CA1094156A1 Power transmission line |
| 01/14/1981 | EP0022369A1 Combustible gas detecting elements |
| 01/14/1981 | EP0022366A1 A sensor circuit including a sensing device |
| 01/13/1981 | US4244918 Gas component detection apparatus |
| 01/13/1981 | US4244803 Quantitative protein analysis by immunodiffusion |
| 01/13/1981 | US4244801 Apparatus to measure the distribution of the anode currents in cells for alkali metal chloride |
| 01/13/1981 | US4244800 Apparatus for use in rapid and accurate controlled-potential coulometric analysis |
| 01/13/1981 | US4244798 Exhaust electrode process for exhaust gas oxygen sensor |
| 01/13/1981 | US4244797 Optical scanning of precipitation zone |
| 01/13/1981 | US4244713 In blood |
| 01/13/1981 | CA1093714A1 Detection of polar vapours |
| 01/13/1981 | CA1093641A1 Ion-selective electrode |
| 01/07/1981 | EP0022028A1 Method to detect and to analyse gases, in particular to prevent fire |
| 01/07/1981 | EP0021893A1 Method and apparatus for eddy current testing of metallic products and application of the method and apparatus |
| 01/07/1981 | EP0021798A2 Method of making a device for determining ionic activity |
| 01/07/1981 | EP0021797A1 Device for monitoring a component in a fluid mixture |
| 01/07/1981 | EP0021696A1 Pyroelectric device |
| 01/07/1981 | EP0021626A1 Salts of phosphoric acid diesters, their preparation and use in membranes, the membranes and their use in calcium ion determination, and the electrodes containing them |
| 01/07/1981 | EP0021595A1 Solid state ion selective electrodes and membranes |
| 01/07/1981 | EP0021524A1 Apparatus for measuring the lubrication of surfaces rolling or sliding relative to each other and lubricated with a lubricant |
| 01/07/1981 | EP0021518A1 Trace vapour detector |
| 01/07/1981 | EP0021316A1 Method and apparatus for determining the contents of heavy metallic oxides in liquid slags |
| 01/07/1981 | EP0021225A1 Humidity measuring method and hygrometer to carry out the method |
| 01/07/1981 | EP0021190A1 Device for individually checking the exposure of a person to toxic gases |
| 01/07/1981 | EP0020993A1 Process for the characterization of the oxygen content of silicon rods drawn by the Czochralski method |
| 01/07/1981 | EP0020938A1 Polarographic sensor for determining the oxygen content in gases, especially in exhaust gases of internal-combustion engines |
| 01/07/1981 | EP0020898A1 An apparatus for controlling the electrical parameters of an electrode reaction in an electrochemical cell |
| 01/07/1981 | EP0020488A1 Method and device for measuring the concentration of an oxidisable substrate in solution by means of an enzymatic reaction |
| 01/07/1981 | EP0020407A1 Process and installation for the continuous preparative separation of molecules and similar particles |
| 01/06/1981 | US4243981 Ionization fire-signal device |
| 01/06/1981 | US4243939 Determining paramagnetic additive content of a base paramagnetic material containing ferromagnetic impurity |
| 01/06/1981 | US4243932 Method and system for checking sealed containers for pinholes by comparing two discharge currents |
| 01/06/1981 | US4243887 Process and apparatus for analyzing a sample with the aid of pulsed laser irradiation |
| 01/06/1981 | US4243631 Solid state sensor |
| 01/06/1981 | US4243507 Isoelectric focusing, gels |
| 01/06/1981 | US4243059 Method and device for determining the homogeneity of magnetic dispersions |
| 01/06/1981 | CA1093215A1 Charge-flow transistor and instrument employing the same |
| 01/06/1981 | CA1092849A1 Protective shield having omni-directional diverter for sensing means |
| 12/30/1980 | US4242303 Phosphorus, nobel metal, semiconductor |
| 12/30/1980 | US4242302 Smoke detectors, sintering metal oxides |
| 12/30/1980 | US4242298 Rinsing with a solvent |
| 12/30/1980 | US4242194 Apparatus for spectroscopic measurement of the velocity of particles in a fluid |
| 12/30/1980 | US4242191 Glass layer |
| 12/30/1980 | US4242189 Hydrogen ions |
| 12/30/1980 | US4242188 Method for controlling plasma chemical reactions |
| 12/30/1980 | US4242096 Immunoassay for antigens |
| 12/24/1980 | WO1980002849A1 Pulsed voltammetric detection of microorganisms |
| 12/24/1980 | WO1980002795A1 Transcutaneous oxygen and local perfusion measurement |
| 12/24/1980 | WO1980002794A1 Fixation ring for transcutaneous gas sensor probe |
| 12/23/1980 | US4241019 Combustible gas detecting element |
| 12/23/1980 | US4240893 Detection element for determining oxygen content and detector for determining oxygen content using the same |
| 12/23/1980 | US4240892 Apparatus for measuring internal metal stress |
| 12/23/1980 | US4240891 Oxygen sensors |
| 12/23/1980 | US4240890 Providing for efficient combustion of fuels |
| 12/23/1980 | US4240889 Two layer, permselective, for detecting hydrogen peroxide |
| 12/23/1980 | US4240879 Methods of measuring the concentrations of ions |
| 12/23/1980 | US4240878 Electrodes |
| 12/23/1980 | US4240799 Solid state detector reactivated by ultraviolet radiation |
| 12/23/1980 | US4240438 Polytetrafluoroethylene membrane |
| 12/23/1980 | US4240375 Apparatus for detecting concentration of toner in developing powder |
| 12/16/1980 | US4240028 Means and method for determining water saturation of oil |
| 12/16/1980 | US4240027 Electromagnetic method for the noninvasive analysis of cell membrane physiology and pharmacology |
| 12/16/1980 | US4239967 In atmosphere comprising oxygen reagent ionization |
| 12/16/1980 | US4239714 Filling the pores with a crosslinkable or polymerizable pore-blocking agent |
| 12/16/1980 | US4239612 Sensing and measuring mobility of colloidal particles |
| 12/16/1980 | US4239493 By controlling the control chemical feed by the feedback method |
| 12/16/1980 | CA1091826A1 Ionisation detector chamber |
| 12/16/1980 | CA1091825A2 Asymmetric cylinder electron capture detector |
| 12/16/1980 | CA1091822A1 Smoke detector ionization chamber |
| 12/16/1980 | CA1091781A1 Apparatus for gauging the texture of a conducting surface |
| 12/16/1980 | CA1091769A1 Corrosion test cell |
| 12/12/1980 | EP0014204A4 Metal type detector for drill pipes. |
| 12/11/1980 | WO1980002667A1 Surface defect detector for steel member |
| 12/10/1980 | EP0020288A1 Jelly electrode adapted to collect bio-electric signals |
| 12/10/1980 | EP0020263A1 Bubble memory testing machine and test method using such a machine |
| 12/10/1980 | EP0019731A1 Polarographic sensor for the determination of the oxygen content in gases, especially in exhaust gases of internal-combustion engines |
| 12/10/1980 | EP0019636A1 Oxygen sensor |
| 12/09/1980 | US4238777 Drop-out detecting system for video recording magnetic tape |
| 12/09/1980 | US4238767 Arrangement for measuring the mobility of image points of a video image |
| 12/09/1980 | US4238758 Semiconductor gas sensor |
| 12/09/1980 | US4238757 Field effect transistor for detection of biological reactions |
| 12/09/1980 | US4238686 Method of analyzing localized nonuniformities in luminescing materials |
| 12/09/1980 | US4238678 Apparatus and a method for detecting and measuring trace gases in air or other gaseous backgrounds |
| 12/09/1980 | US4238308 Device for monitoring a component in a fluid mixture |
| 12/09/1980 | US4238298 Corrosion rate measuring method and apparatus |
| 12/09/1980 | US4238297 Process for the determination of the content of solid, dissolved and with water immiscible organic substances in water |
| 12/09/1980 | US4238185 Control system for a burner |
| 12/09/1980 | US4237839 Air-fuel ratio detecting system |
| 12/09/1980 | US4237724 Detection of batch interfaces in pipelines |
| 12/09/1980 | US4237722 Exhaust gas sensor electrode improvement |
| 12/09/1980 | US4237721 Apparatus and method for detecting substances and for regulating current |
| 12/09/1980 | CA1091327A1 Apparatus for detecting wet and icy surface conditions |
| 12/02/1980 | US4237419 Method and apparatus for non-destructive testing using a plurality of frequencies |
| 12/02/1980 | US4236988 Apparatus for measuring ion activities |
| 12/02/1980 | US4236987 Electrode having membrane with ion selective properties |
| 12/02/1980 | US4236828 Method for calibrating densitometer of cataphoretic apparatus and calibration film for use in such calibrating method |