Inventor
LI GANGQIANG
US33 patents
⚠️ This page may combine multiple inventors who share the name “LI GANGQIANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AGILENT TECHNOLOGIES INC
28 patentsUS6727495B2Apr 27, 2004
Ion mobility spectrometer with high ion transmission efficiency
AGILENT TECHNOLOGIES INC59 citations96
US6593570B2Jul 15, 2003
Ion optic components for mass spectrometers
AGILENT TECHNOLOGIES INC58 citations96
US6570153B1May 27, 2003
Tandem mass spectrometry using a single quadrupole mass analyzer
AGILENT TECHNOLOGIES INC58 citations96
US6462337B1Oct 8, 2002
Mass spectrometer electrospray ionization
AGILENT TECHNOLOGIES INC56 citations96
US7495210B2Feb 24, 2009
Micro fluidic gas assisted ionization device and method
AGILENT TECHNOLOGIES INC17 citations92
US6759651B1Jul 6, 2004
Ion guides for mass spectrometry
AGILENT TECHNOLOGIES INC31 citations92
US6642516B1Nov 4, 2003
Apparatus and method of laser dissociation for mass spectrometry
AGILENT TECHNOLOGIES INC26 citations92
US6274866B1Aug 14, 2001
Systems and methods of mass spectrometry
AGILENT TECHNOLOGIES INC21 citations92
US6242735B1Jun 5, 2001
Power-modulated inductively coupled plasma spectrometry
AGILENT TECHNOLOGIES INC44 citations92
US6222186B1Apr 24, 2001
Power-modulated inductively coupled plasma spectrometry
AGILENT TECHNOLOGIES INC30 citations92
US6700118B2Mar 2, 2004
Thermal drift compensation to mass calibration in time-of-flight mass spectrometry
AGILENT TECHNOLOGIES INC19 citations90
US7642508B2Jan 5, 2010
Micro fluidic gas assisted ionization structure and method
AGILENT TECHNOLOGIES INC9 citations84
US7397027B2Jul 8, 2008
Multi-channel high-field asymmetric waveform ion mobility spectrometry
AGILENT TECHNOLOGIES INC9 citations84
US7372042B2May 13, 2008
Lens device for introducing a second ion beam into a primary ion path
AGILENT TECHNOLOGIES INC16 citations84
US7279681B2Oct 9, 2007
Ion trap with built-in field-modifying electrodes and method of operation
AGILENT TECHNOLOGIES INC15 citations84
US6639217B1Oct 28, 2003
In-line matrix assisted laser desorption/ionization mass spectrometry (MALDI-MS) systems and methods of use
AGILENT TECHNOLOGIES INC17 citations84
US7208726B2Apr 24, 2007
Ion trap mass spectrometer with scanning delay ion extraction
AGILENT TECHNOLOGIES INC13 citations83
US8841611B2Sep 23, 2014
Multi-capillary column and high-capacity ionization interface for GC-MS
AGILENT TECHNOLOGIES INC10 citations82
US7557343B2Jul 7, 2009
Segmented rod multipole as ion processing cell
AGILENT TECHNOLOGIES INC13 citations82
US7449687B2Nov 11, 2008
Methods and compositions for combining ions and charged particles
AGILENT TECHNOLOGIES INC8 citations74
US7755040B2Jul 13, 2010
Mass spectrometer and electric field source for mass spectrometer
AGILENT TECHNOLOGIES INC6 citations63
US7388193B2Jun 17, 2008
Time-of-flight spectrometer with orthogonal pulsed ion detection
AGILENT TECHNOLOGIES INC6 citations63
US7372024B2May 13, 2008
Two dimensional ion traps with improved ion isolation and method of use
AGILENT TECHNOLOGIES INC4 citations63
US6717133B2Apr 6, 2004
Grating pattern and arrangement for mass spectrometers
AGILENT TECHNOLOGIES INC3 citations63
US7397028B2Jul 8, 2008
Apparatus and method for gas flow management
AGILENT TECHNOLOGIES INC3 citations62
US7939798B2May 10, 2011
Tandem ionizer ion source for mass spectrometer and method of use
AGILENT TECHNOLOGIES INC0 citations52
US7619213B2Nov 17, 2009
Ion extraction pulser and method for mass spectrometry
AGILENT TECHNOLOGIES INC1 citations52
US7534997B2May 19, 2009
Mass spectrometer interface for atmospheric ionization ion sources
AGILENT TECHNOLOGIES INC1 citations52