Patents
Patents for H01J 49 - Particle spectrometers or separator tubes (20,265)
07/1977
07/19/1977US4036777 Mass spectrometry
07/05/1977US4034220 Process and apparatus for the elementary and chemical analysis of a sample by spectrum analysis of the energy of the secondary electrons
06/1977
06/28/1977US4032782 Temperature stable multipole mass filter and method therefor
06/07/1977US4028617 Ionization detector utilizing electric discharge
05/1977
05/24/1977US4025787 Separation of mixtures of gaseous isotopes
05/17/1977US4024399 Method and apparatus for measuring vapor flow in isotope separation
05/17/1977US4023398 Apparatus for analyzing trace components
05/10/1977US4023038 Increased ionization rate in laser enrichment
04/1977
04/26/1977US4019989 Wien filter
04/19/1977US4018241 Method and inlet control system for controlling a gas flow sample to an evacuated chamber
04/12/1977US4017403 Ion beam separators
04/05/1977US4016421 Analytical apparatus with variable energy ion beam source
03/1977
03/22/1977US4013887 Methods and apparatus for spatial separation of ac and dc electric fields with application to fringe fields in quadrupole mass filters
03/01/1977US4010366 Measurement of the mass and charge of charged particles
02/1977
02/15/1977US4008388 Mass spectrometric system for rapid, automatic and specific identification and quantitation of compounds
01/1977
01/25/1977US4005291 Ionization method for mass spectrometry
01/04/1977US4001582 Local surface analysis
12/1976
12/21/1976US3999065 Leak detection system with wire probe
12/14/1976US3997298 Liquid chromatography-mass spectrometry system and method
12/07/1976US3996464 Mass spectrometer with magnetic pole pieces providing the magnetic fields for both the magnetic sector and an ion-type vacuum pump
11/1976
11/16/1976US3992632 Multiconfiguration ionization source
11/16/1976US3992626 Test instrument
10/1976
10/12/1976US3986111 Inverted voltage Gerdien Condenser
10/12/1976US3986025 Ion microanalyzer
10/12/1976US3986024 Arrangement for electrical detection of ions for mass-spectroscopic determination of the mass-magnitudes and mass-intensities of ions
10/05/1976US3984692 Ionization apparatus and method for mass spectrometry
10/05/1976US3984682 Mass spectrometer with superimposed electric and magnetic fields
10/05/1976US3984681 Ion and electron detector for use in an ICR spectrometer
08/1976
08/31/1976US3978278 Videodisc reader with concave mirror elements
08/10/1976US3974380 Mass spectrometer
08/03/1976US3973121 Detector for heavy ions following mass analysis
07/1976
07/20/1976US3970849 Device for mass analysis and structure analysis of a surface layer by means of ion scattering
07/06/1976US3968377 Beam splitting to improve target life in neutron generators
06/1976
06/29/1976US3967127 Sample introducer
06/29/1976US3967116 Mass spectrometer
06/08/1976US3961896 From an ammoxidation process
05/1976
05/25/1976US3959649 Collection of ions in a plasma by magnetic field acceleration with selective polarization
05/25/1976US3959341 Process for low ammonia operation of the nitrile synthesis
05/18/1976US3957470 Evacuation chambers
05/04/1976US3955090 Sputtered particle flow source for isotopically selective ionization
05/04/1976US3955084 Electro-optical detector for use in a wide mass range mass spectrometer
04/1976
04/27/1976US3953732 Dynamic mass spectrometer
04/13/1976US3950641 Methods of mass spectrometry and mass spectrometers
04/06/1976US3949221 Double-focussing mass spectrometer
03/1976
03/23/1976US3946229 Gain control for a quadrupole mass spectrometer
03/23/1976US3946227 Mass spectrographs and ion collector systems therefor
03/16/1976US3944827 Virtual image type double focusing mass spectrometer
03/16/1976US3944826 Methods and apparatus for analyzing mixtures
03/16/1976US3944825 Method and apparatus for the separation of isotopes
03/09/1976US3943363 Device for automatic analysis mass spectrometry
02/1976
02/24/1976US3940616 Mass spectrometers
02/17/1976US3939354 Method and apparatus for separation of ions from a plasma
02/17/1976US3939344 Prefilter-ionizer apparatus for use with quadrupole type secondary-ion mass spectrometers
02/10/1976US3937957 Apparatus for determining the energy of charged particles
02/10/1976US3937955 Fourier transform ion cyclotron resonance spectroscopy method and apparatus
02/10/1976US3937954 Methods and apparatus for spatial separation of AC and DC electric fields, with application to fringe fields in quadrupole mass filters
02/03/1976US3936634 Method and apparatus for improved focusing of ion currents in quadrupole mass filter
02/03/1976US3936532 Field desorption mass spectrometry
02/03/1976US3936374 Variable jet separator
01/1976
01/27/1976US3935454 Electron collection in electron spectrometers
01/27/1976US3935453 Quadrupole field mass analyser
01/27/1976US3935452 Quadrupole mobility spectrometer
01/27/1976US3935451 Method and apparatus for separating laser ionized particles from background ions
01/20/1976US3933047 Method and means for gas sampling in mass spectrometry
01/06/1976US3931516 Moving particle composition analyzer