Inventor · disambiguated record
Gangqiang Li
Also filed as: LI GANGQIANG
33 granted patents·8 pending applications·874 citations·filing 1989–2025
98Inventor score
Files withAGILENT TECHNOLOGIES INC29LI GANGQIANG6HANSEN STUART C1HEWLETT PACKARD CO1INDIANA UNIVERSITY FOUNDATION1
Top patents by PatentIndex Score
41 records- 0196US5614711ATime-of-flight mass spectrometerINDIANA UNIVERSITY FOUNDATION·Filed 1995·Granted Mar 25, 1997·172 cites·61 claims
- 0295US6593570B2Ion optic components for mass spectrometersAGILENT TECHNOLOGIES INC·Filed 2000·Granted Jul 15, 2003·58 cites·41 claims
- 0395US6570153B1Tandem mass spectrometry using a single quadrupole mass analyzerAGILENT TECHNOLOGIES INC·Filed 2000·Granted May 27, 2003·58 cites·33 claims
- 0495US6462337B1Mass spectrometer electrospray ionizationAGILENT TECHNOLOGIES INC·Filed 2000·Granted Oct 8, 2002·56 cites·30 claims
- 0593US7495210B2Micro fluidic gas assisted ionization device and methodAGILENT TECHNOLOGIES INC·Filed 2006·Granted Feb 24, 2009·17 cites·20 claims
- 0693US6727495B2Ion mobility spectrometer with high ion transmission efficiencyAGILENT TECHNOLOGIES INC·Filed 2002·Granted Apr 27, 2004·59 cites·25 claims
- 0793US6242735B1Power-modulated inductively coupled plasma spectrometryAGILENT TECHNOLOGIES INC·Filed 2000·Granted Jun 5, 2001·44 cites·18 claims
- 0892US8642951B2Device, system, and method for reflecting ionsLI GANGQIANG·Filed 2011·Granted Feb 4, 2014·24 cites·20 claims
- 0992US7372042B2Lens device for introducing a second ion beam into a primary ion pathAGILENT TECHNOLOGIES INC·Filed 2005·Granted May 13, 2008·16 cites·32 claims
- 1091US7279681B2Ion trap with built-in field-modifying electrodes and method of operationAGILENT TECHNOLOGIES INC·Filed 2005·Granted Oct 9, 2007·15 cites·20 claims
- 1191US5017780AIon reflectorKUTSCHER ROLAND·Filed 1989·Granted May 21, 1991·97 cites·10 claims
- 1290US8841611B2Multi-capillary column and high-capacity ionization interface for GC-MSAGILENT TECHNOLOGIES INC·Filed 2013·Granted Sep 23, 2014·10 cites·20 claims
- 1389US7642508B2Micro fluidic gas assisted ionization structure and methodAGILENT TECHNOLOGIES INC·Filed 2007·Granted Jan 5, 2010·9 cites·15 claims
- 1489US7557343B2Segmented rod multipole as ion processing cellAGILENT TECHNOLOGIES INC·Filed 2005·Granted Jul 7, 2009·13 cites·21 claims
- 1589US6759651B1Ion guides for mass spectrometryAGILENT TECHNOLOGIES INC·Filed 2003·Granted Jul 6, 2004·31 cites·24 claims
- 1687US6642516B1Apparatus and method of laser dissociation for mass spectrometryAGILENT TECHNOLOGIES INC·Filed 2002·Granted Nov 4, 2003·26 cites·25 claims
- 1785US7449687B2Methods and compositions for combining ions and charged particlesAGILENT TECHNOLOGIES INC·Filed 2005·Granted Nov 11, 2008·8 cites·6 claims
- 1885US7397027B2Multi-channel high-field asymmetric waveform ion mobility spectrometryAGILENT TECHNOLOGIES INC·Filed 2006·Granted Jul 8, 2008·9 cites·22 claims
- 1983US7755040B2Mass spectrometer and electric field source for mass spectrometerAGILENT TECHNOLOGIES INC·Filed 2007·Granted Jul 13, 2010·6 cites·21 claims
- 2083US6700118B2Thermal drift compensation to mass calibration in time-of-flight mass spectrometryAGILENT TECHNOLOGIES INC·Filed 2001·Granted Mar 2, 2004·19 cites·19 claims
- 2182US7388193B2Time-of-flight spectrometer with orthogonal pulsed ion detectionAGILENT TECHNOLOGIES INC·Filed 2005·Granted Jun 17, 2008·6 cites·18 claims
- 2282US6639217B1In-line matrix assisted laser desorption/ionization mass spectrometry (MALDI-MS) systems and methods of useAGILENT TECHNOLOGIES INC·Filed 2002·Granted Oct 28, 2003·17 cites·29 claims
- 2380US6222186B1Power-modulated inductively coupled plasma spectrometryAGILENT TECHNOLOGIES INC·Filed 1998·Granted Apr 24, 2001·30 cites·23 claims
- 2478US7208726B2Ion trap mass spectrometer with scanning delay ion extractionAGILENT TECHNOLOGIES INC·Filed 2004·Granted Apr 24, 2007·13 cites·21 claims
- 2577US7372024B2Two dimensional ion traps with improved ion isolation and method of useAGILENT TECHNOLOGIES INC·Filed 2005·Granted May 13, 2008·4 cites·21 claims
- 2675US7397028B2Apparatus and method for gas flow managementAGILENT TECHNOLOGIES INC·Filed 2005·Granted Jul 8, 2008·3 cites·25 claims
- 2774US5654543AMass spectrometer and related methodHEWLETT PACKARD CO·Filed 1995·Granted Aug 5, 1997·27 cites·21 claims
- 2870US6274866B1Systems and methods of mass spectrometryAGILENT TECHNOLOGIES INC·Filed 1999·Granted Aug 14, 2001·21 cites·29 claims
- 2967US7619213B2Ion extraction pulser and method for mass spectrometryAGILENT TECHNOLOGIES INC·Filed 2006·Granted Nov 17, 2009·1 cites·23 claims
- 3065US7534997B2Mass spectrometer interface for atmospheric ionization ion sourcesAGILENT TECHNOLOGIES INC·Filed 2006·Granted May 19, 2009·1 cites·14 claims
- 3161US9236232B2Multi-bore capillary for mass spectrometerHANSEN STUART C·Filed 2009·Granted Jan 12, 2016·1 cites·20 claims
- 3259US7939798B2Tandem ionizer ion source for mass spectrometer and method of useAGILENT TECHNOLOGIES INC·Filed 2009·Granted May 10, 2011·0 cites·21 claims
- 3358US6717133B2Grating pattern and arrangement for mass spectrometersAGILENT TECHNOLOGIES INC·Filed 2001·Granted Apr 6, 2004·3 cites·24 claims
- 3455US2025200835A1Infrared image processing method, apparatus and device, and storage mediumRAYTRON TECH CO LTD·Filed 2025·Application pending·0 cites
- 3550US2009108191A1Mass Spectrometer gain adjustment using ion ratiosYEFCHAK GEORGE·Filed 2007·Application pending·0 cites
- 3649US2010084550A1Apparatus and Method for Identifying MetalloproteinsAGILENT TECHNOLOGIES INC·Filed 2008·Application pending·0 cites
- 3749US2009242748A1Monopole Time-of-Flight Tandem Mass SpectrometerLI GANGQIANG·Filed 2008·Application pending·0 cites
- 3845US2008104064A1Electrospray Ionization Mass Spectrometer InterfaceLI GANGQIANG·Filed 2006·Application pending·0 cites
- 3945US2006073489A1Nanopore separation devices and methods of using sameLI GANGQIANG·Filed 2004·Application pending·0 cites
- 4043US2007278398A1Ion mobility spectrometry waveformLI GANGQIANG·Filed 2006·Application pending·0 cites
- 4138US2005242281A1Unevenly segmented multipoleLI GANGQIANG·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →