| Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839) |
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| 05/18/1976 | US3957470 Evacuation chambers |
| 05/18/1976 | US3957197 Centrifuge apparatus |
| 05/11/1976 | US3956694 Test table for magnetic particle flaw detection |
| 05/11/1976 | US3956692 Metal object comparator utilizing a ramp having a V-shaped slot for mounting the object accurately within the test coil |
| 05/11/1976 | US3956099 Continuous preparative electrophoresis apparatus |
| 05/11/1976 | US3956094 Apparatus for monitoring available chlorine in swimming pools |
| 05/11/1976 | US3955929 Gas detecting sensor |
| 05/11/1976 | US3955403 Method of and apparatus for determining the purity of boiler feedwater |
| 05/04/1976 | US3955186 Character image generation apparatus and CRT phototypesetting system |
| 05/04/1976 | US3955136 Machine for dielectrically detecting defects in flat rubber stock |
| 05/04/1976 | US3954590 Iridium thin ribbon electrodes for electrochemical cells |
| 04/27/1976 | USRE28792 Electrochemical method for separating O2 from a gas; generating electricity; measuring O2 partial pressure; and fuel cell |
| 04/27/1976 | US3953844 Incipient fire detector |
| 04/27/1976 | US3953790 Conductivity monitoring system |
| 04/27/1976 | US3953732 Dynamic mass spectrometer |
| 04/27/1976 | US3953731 Isotope separation utilizing zeeman compensated magnetic extraction |
| 04/27/1976 | US3953173 Rare earth transition metal oxides, alcohols, carbon monoxide |
| 04/27/1976 | US3952730 Instrument for use in the measurement of blood gases |
| 04/27/1976 | US3952567 Gas sensor |
| 04/27/1976 | US3952418 Master gear for checking tooth contact |
| 04/20/1976 | US3952315 Eddy current discontinuity probe utilizing a permanent magnet bobbin with at least one A.C. energized coil mounted in a groove thereon |
| 04/20/1976 | US3951881 Method of magnetic particle testing using strippable coatings |
| 04/20/1976 | US3951777 Isoelectric focusing devices |
| 04/20/1976 | US3951776 Buffer solution |
| 04/20/1976 | US3951607 For pulmonary use |
| 04/20/1976 | US3951603 Rare earth metal - alkaline earth metal - transition metal oxide complex |
| 04/20/1976 | US3951267 Apparatus for testing the end portions of cigarettes or the like |
| 04/20/1976 | US3951161 Method of detecting the onset of formation of adherent precipitates on surfaces immersed in liquids, and controlling the formation of such precipitates |
| 04/20/1976 | US3950980 Vapor sampling device |
| 04/20/1976 | US3950854 Method and apparatus for measuring area under a curve |
| 04/13/1976 | US3950739 Detector for detecting and locating the source of a contaminating gas or smoke in the atmosphere |
| 04/13/1976 | US3950706 Voltage sweep generator with bistable current source providing linear sweep voltages |
| 04/13/1976 | US3950698 Arrangement for determining the moisture content of tobacco and the like |
| 04/13/1976 | US3950237 Coulometric titrating devices |
| 04/13/1976 | US3950231 In electrolytic cells |
| 04/13/1976 | US3950155 Automatic air-purifying system |
| 04/13/1976 | US3950137 Apparatus for measuring the presence of a weak acid or a weak base in a liquid |
| 04/13/1976 | US3949599 Method of quantitave analysis |
| 04/13/1976 | US3949590 Method and apparatus for measuring gases in a metal sample |
| 04/06/1976 | US3949390 High voltage aerosol detector |
| 04/06/1976 | US3949389 Moisture detector |
| 04/06/1976 | US3949293 Apparatus and method for detecting a moving metal mass including means to discriminate signals having a particular period |
| 04/06/1976 | US3949292 Pipeline inspection device with pivotal support structure |
| 04/06/1976 | US3948813 Oxygen sensitive, refractory oxide composition |
| 04/06/1976 | US3948753 Apparatus for isotachophoretical separation |
| 04/06/1976 | US3948746 Dissolved oxygen probe |
| 04/06/1976 | US3948743 Method for gel electrophoresis |
| 04/06/1976 | US3948228 Exhaust gas sensor operational detection system |
| 04/06/1976 | US3948081 Exhaust gas operated apparatus for continuously measuring air number of engine intake mixture |
| 03/30/1976 | US3947765 Automated electrical resistivity measuring apparatus for semiconductor crystal rods |
| 03/30/1976 | US3947345 Apparatus for electrophoresis migration |
| 03/30/1976 | US3947329 Method of measuring accelerated corrosion rate |
| 03/30/1976 | US3947124 Analytical spectroelectrochemistry |
| 03/23/1976 | US3946374 Rate-of-change combustion and contamination detection device |
| 03/23/1976 | US3946309 Cell for measuring electrical resistivity of a liquid |
| 03/23/1976 | US3946307 Apparatus for detecting the physical properties of magnetic or electric conductive heat-responsive or deformable material using negative input impedance network |
| 03/23/1976 | US3946198 Electrical control system for an exhaust gas sensor |
| 03/16/1976 | US3944916 Moisture indicating plant receptacle |
| 03/16/1976 | US3944911 Apparatus for magnetically detecting faults in metal bodies utilizing a multiphase generator to generate a rotating field in the body |
| 03/16/1976 | US3944859 Bridge-balance detection circuit |
| 03/16/1976 | US3944827 Virtual image type double focusing mass spectrometer |
| 03/16/1976 | US3944399 Method of physical separation of components of a molecular beam |
| 03/16/1976 | US3943766 Flame ionization detector status indicator |
| 03/16/1976 | US3943751 Metal getter, thermal conductivity |
| 03/09/1976 | US3943557 Semiconductor package with integral hermeticity detector |
| 03/09/1976 | US3943437 Apparatus for investigating the electrostatic properties of powders |
| 03/09/1976 | US3943363 Device for automatic analysis mass spectrometry |
| 03/09/1976 | US3943043 Apparatus for or selective dissolution or detection of predetermined metals |
| 03/09/1976 | US3942767 Method and apparatus for continuously automatically controlling the water content of kneaded viscous materials |
| 03/02/1976 | US3942105 Non-contact inductive pickup for determining the interface between two media |
| 03/02/1976 | US3941678 Apparatus for electrophoretic analysis |
| 03/02/1976 | US3941673 Oxygen sensor devoid of catalytic oxidation activity |
| 03/02/1976 | US3941665 Cation concentration measurements |
| 03/02/1976 | US3940996 Method and device for remotely monitoring electrically conductive liquids |
| 02/24/1976 | US3940754 Fluid detector device in a drive motor for an underground mining machine |
| 02/24/1976 | US3940732 Buoyant electrode and system for high speed towing |
| 02/24/1976 | US3940690 Multi-probe flux leakage testing apparatus using skewed probes |
| 02/24/1976 | US3940689 Combined eddy current and leakage field detector for well bore piping using a unique magnetizer core structure |
| 02/24/1976 | US3940615 Wide angle isotope separator |
| 02/24/1976 | US3940327 Oxygen sensing device |
| 02/24/1976 | US3939694 Method and apparatus for measuring the concentration of solid particles suspended in a gas phase |
| 02/17/1976 | US3939408 Conductivity cell and measuring system |
| 02/17/1976 | US3939404 Method of testing for and preventing the possibility of cracking, spalling or like defects in rolling mill rolls by determining the rate of change in hardness |
| 02/17/1976 | US3939403 Device for maintaining constant the temperature of a coil fed by an A.C. current source |
| 02/17/1976 | US3939401 Conductivity cell electrode enclosure |
| 02/17/1976 | US3939354 Method and apparatus for separation of ions from a plasma |
| 02/17/1976 | US3939344 Prefilter-ionizer apparatus for use with quadrupole type secondary-ion mass spectrometers |
| 02/17/1976 | US3938956 Modulated hydrogen ion flame detector |
| 02/17/1976 | US3938479 Exhaust gas sensor operating temperature detection system |
| 02/10/1976 | US3938075 Exhaust gas sensor failure detection system |
| 02/10/1976 | US3938037 Device for measuring the ferrite content in an austenitic stainless steel weld material |
| 02/10/1976 | US3938035 Electrical conductivity cell and method for fabricating the same |
| 02/10/1976 | US3937955 Fourier transform ion cyclotron resonance spectroscopy method and apparatus |
| 02/10/1976 | US3937670 Alumina, titania, iron or zinc oxide |
| 02/10/1976 | US3937615 Amperometric, analog circuits |
| 02/10/1976 | US3937059 Device for measuring the condensation temperature of a gas or a vapor |
| 02/03/1976 | US3936794 Exhaust gas sensor probe |
| 02/03/1976 | US3936739 Method and apparatus for generating error corrected signals |
| 02/03/1976 | US3936738 Method of and apparatus for measuring the amount of coating material applied to substrates |
| 02/03/1976 | US3936737 Corrosion monitoring system |