Assignee
FINNIGAN CORP
US·49 granted patents·3,375 citations·filing 1976–2000
Top patents by PatentIndex Score
49 records- 0198US5420425AIon trap mass spectrometer system and methodFINNIGAN CORP·Filed 1994·Granted May 30, 1995·434 cites·29 claims
- 0298US4540884AMethod of mass analyzing a sample by use of a quadrupole ion trapFINNIGAN CORP·Filed 1982·Granted Sep 10, 1985·325 cites·23 claims
- 0397US4755670AFourtier transform quadrupole mass spectrometer and methodFINNIGAN CORP·Filed 1986·Granted Jul 5, 1988·145 cites·19 claims
- 0497US4736101AMethod of operating ion trap detector in MS/MS modeFINNIGAN CORP·Filed 1987·Granted Apr 5, 1988·177 cites·14 claims
- 0596US4214160AMass spectrometer system and method for control of ion energy for different massesFINNIGAN CORP·Filed 1976·Granted Jul 22, 1980·72 cites·3 claims
- 0695US5572022AMethod and apparatus of increasing dynamic range and sensitivity of a mass spectrometerFINNIGAN CORP·Filed 1995·Granted Nov 5, 1996·195 cites·10 claims
- 0795US5107109AMethod of increasing the dynamic range and sensitivity of a quadrupole ion trap mass spectrometerFINNIGAN CORP·Filed 1986·Granted Apr 21, 1992·103 cites·5 claims
- 0895US4749860AMethod of isolating a single mass in a quadrupole ion trapFINNIGAN CORP·Filed 1986·Granted Jun 7, 1988·75 cites·6 claims
- 0994US4423324AApparatus for detecting negative ionsFINNIGAN CORP·Filed 1979·Granted Dec 27, 1983·37 cites·7 claims
- 1093US4771172AMethod of increasing the dynamic range and sensitivity of a quadrupole ion trap mass spectrometer operating in the chemical ionization modeFINNIGAN CORP·Filed 1987·Granted Sep 13, 1988·72 cites·7 claims
- 1192US5324939AMethod and apparatus for ejecting unwanted ions in an ion trap mass spectrometerFINNIGAN CORP·Filed 1993·Granted Jun 28, 1994·86 cites·26 claims
- 1292US5089703AMethod and apparatus for mass analysis in a multipole mass spectrometerFINNIGAN CORP·Filed 1991·Granted Feb 18, 1992·82 cites·21 claims
- 1392US4535235AApparatus and method for injection of ions into an ion cyclotron resonance cellFINNIGAN CORP·Filed 1983·Granted Aug 13, 1985·76 cites·13 claims
- 1492US4032782ATemperature stable multipole mass filter and method thereforFINNIGAN CORP·Filed 1976·Granted Jun 28, 1977·37 cites·5 claims
- 1591US5393975AElectrospray ion source and interface apparatus and methodFINNIGAN CORP·Filed 1992·Granted Feb 28, 1995·81 cites·23 claims
- 1691US4818869AMethod of isolating a single mass or narrow range of masses and/or enhancing the sensitivity of an ion trap mass spectrometerFINNIGAN CORP·Filed 1987·Granted Apr 4, 1989·55 cites·4 claims
- 1790US4985625ATransfer line for mass spectrometer apparatusFINNIGAN CORP·Filed 1987·Granted Jan 15, 1991·90 cites·11 claims
- 1889US5170053AElectrospray ion source and interface apparatus and methodFINNIGAN CORP·Filed 1991·Granted Dec 8, 1992·56 cites·11 claims
- 1989US4686367AMethod of operating quadrupole ion trap chemical ionization mass spectrometryFINNIGAN CORP·Filed 1985·Granted Aug 11, 1987·44 cites·5 claims
- 2088US5756996AIon source assembly for an ion trap mass spectrometer and methodFINNIGAN CORP·Filed 1996·Granted May 26, 1998·62 cites·6 claims
- 2188US5285063AMethod of detecting ions in an ion trap mass spectrometerFINNIGAN CORP·Filed 1993·Granted Feb 8, 1994·56 cites·18 claims
- 2288US4650999AMethod of mass analyzing a sample over a wide mass range by use of a quadrupole ion trapFINNIGAN CORP·Filed 1984·Granted Mar 17, 1987·33 cites·10 claims
- 2387US5072115AInterpretation of mass spectra of multiply charged ions of mixturesFINNIGAN CORP·Filed 1990·Granted Dec 10, 1991·129 cites·20 claims
- 2486US5075547AQuadrupole ion trap mass spectrometer having two pulsed axial excitation input frequencies and method of parent and neutral loss scanning and selected reaction monitoringFINNIGAN CORP·Filed 1991·Granted Dec 24, 1991·59 cites·6 claims
- 2585US5171991AQuadrupole ion trap mass spectrometer having two axial modulation excitation input frequencies and method of parent and neutral loss scanningFINNIGAN CORP·Filed 1991·Granted Dec 15, 1992·46 cites·6 claims
- 2684US6124591AMethod of ion fragmentation in a quadrupole ion trapFINNIGAN CORP·Filed 1999·Granted Sep 26, 2000·43 cites·27 claims
- 2784US4055987ALiquid chromatograph/mass spectrometer interfaceFINNIGAN CORP·Filed 1976·Granted Nov 1, 1977·47 cites·6 claims
- 2883US5543625AFilament assembly for mass spectrometer ion sourcesFINNIGAN CORP·Filed 1994·Granted Aug 6, 1996·41 cites·6 claims
- 2982US5171990AElectrospray ion source with reduced neutral noise and methodFINNIGAN CORP·Filed 1991·Granted Dec 15, 1992·67 cites·2 claims
- 3082US5128542AMethod of operating an ion trap mass spectrometer to determine the resonant frequency of trapped ionsFINNIGAN CORP·Filed 1991·Granted Jul 7, 1992·51 cites·9 claims
- 3181US5122670AMultilayer flow electrospray ion source using improved sheath liquidFINNIGAN CORP·Filed 1991·Granted Jun 16, 1992·53 cites·2 claims
- 3281US4388531AIonizer having interchangeable ionization chamberFINNIGAN CORP·Filed 1981·Granted Jun 14, 1983·23 cites·10 claims
- 3379US5162650AMethod and apparatus for multi-stage particle separation with gas addition for a mass spectrometerFINNIGAN CORP·Filed 1991·Granted Nov 10, 1992·50 cites·6 claims
- 3478US5750993AMethod of reducing noise in an ion trap mass spectrometer coupled to an atmospheric pressure ionization sourceFINNIGAN CORP·Filed 1996·Granted May 12, 1998·34 cites·3 claims
- 3576US5182451AMethod of operating an ion trap mass spectrometer in a high resolution modeFINNIGAN CORP·Filed 1992·Granted Jan 26, 1993·29 cites·14 claims
- 3674US4947315ASystem for controlling instrument using a levels data structure and concurrently running compiler task and operator taskFINNIGAN CORP·Filed 1989·Granted Aug 7, 1990·35 cites·19 claims
- 3771US5055678AMetal surfaces for sample analyzing and ionizing apparatusFINNIGAN CORP·Filed 1990·Granted Oct 8, 1991·23 cites·11 claims
- 3867US5247175AMethod and apparatus for the deconvolution of unresolved dataFINNIGAN CORP·Filed 1992·Granted Sep 21, 1993·65 cites·5 claims
- 3967US4990777ARod assembly for multipole mass spectrometersFINNIGAN CORP·Filed 1990·Granted Feb 5, 1991·19 cites·3 claims
- 4066US5811681AMultimedia feature for diagnostic instrumentationFINNIGAN CORP·Filed 1996·Granted Sep 22, 1998·93 cites·25 claims
- 4162US4816675AQuadrupole mass filter with unbalanced R.F. voltageFINNIGAN CORP·Filed 1987·Granted Mar 28, 1989·12 cites·5 claims
- 4258USRE35413EElectrospray ion source with reduced neutral noise and methodFINNIGAN CORP·Filed 1994·Granted Dec 31, 1996·19 cites·1 claims
- 4356US6424515B1Combined detector capacitor and vacuum feed throughFINNIGAN CORP·Filed 2000·Granted Jul 23, 2002·7 cites·5 claims
- 4443US6248999B1Assembly for coupling an ion source to a mass analyzerFINNIGAN CORP·Filed 1998·Granted Jun 19, 2001·9 cites·7 claims
- 4540US4447728AIonizer including discharge ion source and methodFINNIGAN CORP·Filed 1982·Granted May 8, 1984·5 cites·6 claims
- 4638US4684204AElectron source assembly with a replaceable filament ribbonFINNIGAN CORP·Filed 1986·Granted Aug 4, 1987·3 cites·3 claims
- 4738US4081222ACombined vacuum baffle and valve for diffusion pumpFINNIGAN CORP·Filed 1976·Granted Mar 28, 1978·7 cites·2 claims
- 4834US4682508AInlet valve for probe apparatusFINNIGAN CORP·Filed 1986·Granted Jul 28, 1987·11 cites·9 claims
- 4934US4075479AFocusing ion lens system for mass spectrometer for separating charged and neutral particlesFINNIGAN CORP·Filed 1976·Granted Feb 21, 1978·2 cites·3 claims
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