Patents for H01J 49 - Particle spectrometers or separator tubes (20,265) |
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07/05/1994 | US5327475 Soft x-ray submicron lithography using multiply charged ions |
07/05/1994 | US5326978 Charged particle detector |
06/28/1994 | US5325021 Radio-frequency powered glow discharge device and method with high voltage interface |
06/28/1994 | US5324939 Method and apparatus for ejecting unwanted ions in an ion trap mass spectrometer |
06/28/1994 | US5324938 Method and apparatus for detecting strippable substances in liquids |
06/23/1994 | WO1994014184A1 Quadrupole mass filter |
06/22/1994 | EP0602983A1 Hybrid photomultiplier tube with high sensitivity |
06/22/1994 | EP0602982A1 Focused electron-bombarded detector |
06/22/1994 | EP0602764A1 Inductively coupled plasma spectrometers and radio - frequency power supply therefor |
06/22/1994 | CN2169921Y Auto-loading specimen boat for transmission electric mirror |
06/18/1994 | CA2094116A1 Inductively coupled plasma spectrometers and radio-frequency power supply therefor |
06/15/1994 | EP0601689A1 Secondary ion mass spectrometric analysis of metals and method of preparing standard sample therefor |
06/15/1994 | EP0601118A1 Mass spectrometry method using supplemental ac voltage signals |
06/14/1994 | US5321262 Electron imaging band pass analyser for a photoelectron spectromicroscope |
06/07/1994 | US5318752 Method and apparatus for sampling a reactive atmosphere into a vacuum chamber of an analyzer |
05/31/1994 | US5317259 DC-based magnetic field controller |
05/31/1994 | US5317151 Miniaturized lightweight magnetic sector for a field-portable mass spectrometer |
05/31/1994 | US5316955 Furnace atomization electron ionization mass spectrometry |
05/24/1994 | US5315120 Univane RFQ |
05/24/1994 | US5315113 Scanning and high resolution x-ray photoelectron spectroscopy and imaging |
05/24/1994 | US5314827 Isotopic composition analyzer |
05/17/1994 | US5313061 Miniaturized mass spectrometer system |
05/11/1994 | WO1994007258A3 Electron energy spectrometer |
05/11/1994 | EP0347452B1 Counterflow leak detector with high and low sensitivity operating modes |
05/10/1994 | US5311016 Apparatus for preparing a sample for mass spectrometry |
05/03/1994 | US5308979 Analysis of hydrogen isotope mixtures |
05/03/1994 | US5308978 Method of preparing a sample for analysis |
05/03/1994 | US5308977 Plasma mass spectrometer |
04/27/1994 | EP0594421A1 Electron spectrometer |
04/27/1994 | EP0594394A1 Electron spectroscopy analyzer and a method of correcting a shift of spectral line in electron spectroscopy |
04/26/1994 | US5306910 Time modulated electrified spray apparatus and process |
04/26/1994 | US5306412 Method and apparatus for improving electrospray ionization of solute species |
04/26/1994 | CA1328930C Endotracheal tube and mass spectrometer |
04/19/1994 | US5304799 Cycloidal mass spectrometer and ionizer for use therein |
04/19/1994 | US5304798 Housing for converting an electrospray to an ion stream |
04/19/1994 | US5304797 Gas analyzer for determining impurity concentration of highly-purified gas |
04/19/1994 | US5304796 Atmospheric pressure ionization mass spectroscopy method including a silica gel drying step |
04/12/1994 | US5302827 Quadrupole mass spectrometer |
04/12/1994 | US5302826 Quadrupole trap improved technique for collisional induced disassociation for MS/MS processes |
04/06/1994 | EP0590308A2 Scanning and hig resoloution x-ray photo electron spectroscopy and imaging |
04/06/1994 | EP0590042A1 Mass spectrometry apparatus and method relating thereto |
04/06/1994 | EP0589990A1 Sample holder for use in a mass spectrometer |
04/05/1994 | US5300774 Time-of-flight mass spectrometer with an aperture enabling tradeoff of transmission efficiency and resolution |
04/05/1994 | US5300773 Pulsed ionization ion mobility sensor |
04/05/1994 | US5300772 Quadruple ion trap method having improved sensitivity |
04/05/1994 | US5300771 Method for determining the molecular weights of polyatomic molecules by mass analysis of their multiply charged ions |
04/05/1994 | US5300276 Processes for preparing hydrogen gas and determining ratio of masses between hydrogen isotopes therein |
03/31/1994 | WO1994007258A2 Electron energy spectrometer |
03/31/1994 | WO1994007257A1 Reducing interferences in plasma source mass spectrometers |
03/31/1994 | DE4232509A1 Measuring contaminants in containers,e.g. plastic bottles - involves using mass spectrometer with ionisation and photon stimulation |
03/30/1994 | EP0588952A1 Method and apparatus for improving electrospray ionization of solute species |
03/29/1994 | US5298746 Method and device for control of the excitation voltage for ion ejection from ion trap mass spectrometers |
03/29/1994 | US5298745 Multilayer multipole |
03/29/1994 | US5298744 Mass spectrometer |
03/29/1994 | US5298743 Mass spectrometry and mass spectrometer |
03/23/1994 | EP0587707A1 Time-of-flight mass spectrometer with an aperture enabling tradeoff of transmission efficiency and resolution |
03/23/1994 | EP0339047B1 Thermal cycle recirculating pump for isotope purifier |
03/22/1994 | US5296816 Integrated circuit sensor and detector and spectrometers incorporating the sensor |
03/16/1994 | EP0587448A2 Mass spectrometer with adjustable aperture mechanism |
03/16/1994 | EP0587369A2 Apparatus comprising means for mass spectrometry |
03/16/1994 | EP0586543A1 Microelectrospray method and apparatus |
03/15/1994 | US5294797 Method and apparatus for generating ions from thermally unstable, non-volatile, large molecules, particularly for a mass spectrometer such as a time-of-flight mass spectrometer |
03/09/1994 | EP0585487A1 Apparatus and process for photoionization and detection |
03/09/1994 | EP0585297A1 Off-axis interface for a mass spectrometer |
03/09/1994 | EP0312587B1 Plasma focus apparatus with field distortion elements |
03/03/1994 | WO1994005034A1 Time of flight mass spectrometer, ion source, and methods of preparing a sample for mass analysis and of mass analyzing a sample |
03/03/1994 | WO1994004252A1 Method for generating filtered noise signal and broadband signal having reduced dynamic range in mass spectrometry |
03/03/1994 | DE4228190A1 Analysator für geladene Teilchen Analyser for charged particles |
03/02/1994 | EP0584923A1 An analytical electron microscope and a method of operating such an electron microscope |
03/02/1994 | EP0584262A1 Tandem time-of-flight mass spectrometer. |
03/01/1994 | US5291017 Ion trap mass spectrometer method and apparatus for improved sensitivity |
03/01/1994 | US5291016 Electrostatic lens arrangement of multi-stages of multi-pole electrodes and mass spectrometer using the same |
02/23/1994 | EP0583329A1 Process for the manufacture of a multipolar elongate-electrode lens or mass filter. |
02/22/1994 | US5289003 Probe for thermospray mass spectrometry |
02/22/1994 | US5288644 High speed, automatic detection of mass weights of DNA fragments; mass spectrometry |
02/15/1994 | US5286974 Charged particle energy analyzers |
02/08/1994 | US5285066 Imaging XPS system |
02/08/1994 | US5285064 Method and apparatus for introduction of liquid effluent into mass spectrometer and other gas-phase or particle detectors |
02/08/1994 | US5285063 Method of detecting ions in an ion trap mass spectrometer |
02/02/1994 | EP0581600A2 Method of operating a quadrupole ion trap at high sensitivity |
02/02/1994 | EP0580986A1 Method of operating a quadrupole trap applied to collision induced disassociation for MS/MS processes |
02/01/1994 | US5283436 Generation of an exact three-dimensional quadrupole electric field and superposition of a homogeneous electric field in trapping-exciting mass spectrometer (TEMS) |
02/01/1994 | US5283199 Containing amine dopant to react with chlorine interferent |
01/26/1994 | EP0579952A1 Method and device for testing of bottles for contamination |
01/26/1994 | EP0579935A1 Quadrupole ion trap technique for ion isolation |
01/25/1994 | US5281538 Method of preparing a sample for analysis by laser desorption mass spectrometry |
01/20/1994 | WO1994001883A1 A method for discriminative particle separation |
01/20/1994 | WO1994001206A1 Time-of-flight direct recoil ion scattering spectrometer |
01/19/1994 | EP0579055A1 Method and device for mass-spectrometrical testing of bottles for contamination |
01/12/1994 | EP0578146A1 Method and device for testing of bottles for contamination |
01/11/1994 | US5278407 Secondary-ion mass spectrometry apparatus using field limiting method |
01/10/1994 | CA2100036A1 Process and arrangement for testing bottles for the presence of contamination |
01/08/1994 | CA2099957A1 Process and arrangement for testing bottles for contamination |
01/08/1994 | CA2099956A1 Process and arrangement for testing bottles for contamination |
01/05/1994 | EP0576972A1 Ion scattering spectroscope |
01/05/1994 | DE4232669C1 Ninety-degree deflection mass separator tube for semiconductor material ion implantation - covers inside of aluminium walls with sections of electrically conductive non-magnetic graphite of uneven surface, which sections are narrow to allow disassembly through entrance. |
12/29/1993 | EP0575778A1 Method and apparatus for providing tailored exitation as in Fourier transform mass spectrometry |
12/29/1993 | EP0575777A2 Methods of using ion trap mass spectrometers |
12/29/1993 | EP0575409A1 Isotopic-ratio plasma source mass spectrometer. |
12/28/1993 | US5274233 Mass spectrometry method using supplemental AC voltage signals |