Inventor
CHUTJIAN ARA
28 patents
⚠️ This page may combine multiple inventors who share the name “CHUTJIAN ARA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CALIFORNIA INST OF TECHN
19 patentsUS6262416B1Jul 17, 2001
Miniature micromachined quadrupole mass spectrometer array and method of making the same
CALIFORNIA INST OF TECHN39 citations95
US6049052AApr 11, 2000
Miniature micromachined quadrupole mass spectrometer array and method of making the same
CALIFORNIA INST OF TECHN58 citations95
US5596193AJan 21, 1997
Miniature quadrupole mass spectrometer array
CALIFORNIA INST OF TECHN82 citations95
US6281494B1Aug 28, 2001
Miniature micromachined quadrupole mass spectrometer array and method of making the same
CALIFORNIA INST OF TECHN39 citations94
US6188067B1Feb 13, 2001
Miniature micromachined quadrupole mass spectrometer array and method of making the same
CALIFORNIA INST OF TECHN54 citations94
US6157029ADec 5, 2000
Miniature micromachined quadrupole mass spectrometer array and method of making the same
CALIFORNIA INST OF TECHN58 citations94
US5726448AMar 10, 1998
Rotating field mass and velocity analyzer
CALIFORNIA INST OF TECHN130 citations93
US6469299B2Oct 22, 2002
Miniature micromachined quadrupole mass spectrometer array and method of making the same
CALIFORNIA INST OF TECHN17 citations92
US5719393AFeb 17, 1998
Miniature quadrupole mass spectrometer array
CALIFORNIA INST OF TECHN26 citations92
US7332345B2Feb 19, 2008
Chemical sensor system
CALIFORNIA INST OF TECHN30 citations91
US6521898B2Feb 18, 2003
High-efficiency electron ionizer for a mass spectrometer array
CALIFORNIA INST OF TECHN22 citations91
US7772550B2Aug 10, 2010
Electronic drive and acquisition system for mass spectrometry
CALIFORNIA INST OF TECHN15 citations78
US5256874AOct 26, 1993
Gridded electron reversal ionizer
CALIFORNIA INST OF TECHN10 citations74
US6271527B1Aug 7, 2001
High-efficiency electron ionizer for a mass spectrometer array
CALIFORNIA INST OF TECHN5 citations72
US6072182AJun 6, 2000
High-efficiency electron ionizer for a mass spectrometer array
CALIFORNIA INST OF TECHN5 citations72
US6583702B2Jun 24, 2003
Quadrupole mass spectrometer driver with higher signal levels
CALIFORNIA INST OF TECHN5 citations70
US6434031B2Aug 13, 2002
Driving a quadrupole mass spectrometer via an isolating stage
CALIFORNIA INST OF TECHN6 citations70
US6205043B1Mar 20, 2001
Power supply with air core transformer and seperated power supplies for high dynamic range
CALIFORNIA INST OF TECHN12 citations70
US10580636B2Mar 3, 2020
Ultrahigh resolution mass spectrometry using an electrostatic ion bottle with coupling to a quadrupole ion trap
CALIFORNIA INST OF TECHN3 citations64
NASA
5 patentsUS4933551AJun 12, 1990
Reversal electron attachment ionizer for detection of trace species
NASA60 citations96
US4649273AMar 10, 1987
Variable energy, high flux, ground-state atomic oxygen source
NASA29 citations92
US4649278AMar 10, 1987
Generation of intense negative ion beams
NASA29 citations88
US4158775AJun 19, 1979
High resolution threshold photoelectron spectroscopy by electron attachment
NASA15 citations69
US4818868AApr 4, 1989
Trochoidal analysis of scattered electrons in a merged electron-ion beam geometry
NASA1 citations52