Patents for H01J 49 - Particle spectrometers or separator tubes (20,265) |
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07/19/1977 | US4036777 Mass spectrometry |
07/05/1977 | US4034220 Process and apparatus for the elementary and chemical analysis of a sample by spectrum analysis of the energy of the secondary electrons |
06/28/1977 | US4032782 Temperature stable multipole mass filter and method therefor |
06/07/1977 | US4028617 Ionization detector utilizing electric discharge |
05/24/1977 | US4025787 Separation of mixtures of gaseous isotopes |
05/17/1977 | US4024399 Method and apparatus for measuring vapor flow in isotope separation |
05/17/1977 | US4023398 Apparatus for analyzing trace components |
05/10/1977 | US4023038 Increased ionization rate in laser enrichment |
04/26/1977 | US4019989 Wien filter |
04/19/1977 | US4018241 Method and inlet control system for controlling a gas flow sample to an evacuated chamber |
04/12/1977 | US4017403 Ion beam separators |
04/05/1977 | US4016421 Analytical apparatus with variable energy ion beam source |
03/22/1977 | US4013887 Methods and apparatus for spatial separation of ac and dc electric fields with application to fringe fields in quadrupole mass filters |
03/01/1977 | US4010366 Measurement of the mass and charge of charged particles |
02/15/1977 | US4008388 Mass spectrometric system for rapid, automatic and specific identification and quantitation of compounds |
01/25/1977 | US4005291 Ionization method for mass spectrometry |
01/04/1977 | US4001582 Local surface analysis |
12/21/1976 | US3999065 Leak detection system with wire probe |
12/14/1976 | US3997298 Liquid chromatography-mass spectrometry system and method |
12/07/1976 | US3996464 Mass spectrometer with magnetic pole pieces providing the magnetic fields for both the magnetic sector and an ion-type vacuum pump |
11/16/1976 | US3992632 Multiconfiguration ionization source |
11/16/1976 | US3992626 Test instrument |
10/12/1976 | US3986111 Inverted voltage Gerdien Condenser |
10/12/1976 | US3986025 Ion microanalyzer |
10/12/1976 | US3986024 Arrangement for electrical detection of ions for mass-spectroscopic determination of the mass-magnitudes and mass-intensities of ions |
10/05/1976 | US3984692 Ionization apparatus and method for mass spectrometry |
10/05/1976 | US3984682 Mass spectrometer with superimposed electric and magnetic fields |
10/05/1976 | US3984681 Ion and electron detector for use in an ICR spectrometer |
08/31/1976 | US3978278 Videodisc reader with concave mirror elements |
08/10/1976 | US3974380 Mass spectrometer |
08/03/1976 | US3973121 Detector for heavy ions following mass analysis |
07/20/1976 | US3970849 Device for mass analysis and structure analysis of a surface layer by means of ion scattering |
07/06/1976 | US3968377 Beam splitting to improve target life in neutron generators |
06/29/1976 | US3967127 Sample introducer |
06/29/1976 | US3967116 Mass spectrometer |
06/08/1976 | US3961896 From an ammoxidation process |
05/25/1976 | US3959649 Collection of ions in a plasma by magnetic field acceleration with selective polarization |
05/25/1976 | US3959341 Process for low ammonia operation of the nitrile synthesis |
05/18/1976 | US3957470 Evacuation chambers |
05/04/1976 | US3955090 Sputtered particle flow source for isotopically selective ionization |
05/04/1976 | US3955084 Electro-optical detector for use in a wide mass range mass spectrometer |
04/27/1976 | US3953732 Dynamic mass spectrometer |
04/13/1976 | US3950641 Methods of mass spectrometry and mass spectrometers |
04/06/1976 | US3949221 Double-focussing mass spectrometer |
03/23/1976 | US3946229 Gain control for a quadrupole mass spectrometer |
03/23/1976 | US3946227 Mass spectrographs and ion collector systems therefor |
03/16/1976 | US3944827 Virtual image type double focusing mass spectrometer |
03/16/1976 | US3944826 Methods and apparatus for analyzing mixtures |
03/16/1976 | US3944825 Method and apparatus for the separation of isotopes |
03/09/1976 | US3943363 Device for automatic analysis mass spectrometry |
02/24/1976 | US3940616 Mass spectrometers |
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 |
02/10/1976 | US3937957 Apparatus for determining the energy of charged particles |
02/10/1976 | US3937955 Fourier transform ion cyclotron resonance spectroscopy method and apparatus |
02/10/1976 | US3937954 Methods and apparatus for spatial separation of AC and DC electric fields, with application to fringe fields in quadrupole mass filters |
02/03/1976 | US3936634 Method and apparatus for improved focusing of ion currents in quadrupole mass filter |
02/03/1976 | US3936532 Field desorption mass spectrometry |
02/03/1976 | US3936374 Variable jet separator |
01/27/1976 | US3935454 Electron collection in electron spectrometers |
01/27/1976 | US3935453 Quadrupole field mass analyser |
01/27/1976 | US3935452 Quadrupole mobility spectrometer |
01/27/1976 | US3935451 Method and apparatus for separating laser ionized particles from background ions |
01/20/1976 | US3933047 Method and means for gas sampling in mass spectrometry |
01/06/1976 | US3931516 Moving particle composition analyzer |