Inventor · disambiguated record
David J. Langridge
Also filed as: LANGRIDGE DAVID · LANGRIDGE DAVID J · LANGRIDGE David John
81 granted patents·11 pending applications·420 citations·filing 1988–2024
99Inventor score
Top patents by PatentIndex Score
92 records- 0199US9984861B2Ion entry/exit deviceMICROMASS LTD·Filed 2015·Granted May 29, 2018·44 cites·20 claims
- 0297US12080534B2Separating ions in an ion trapMICROMASS LTD·Filed 2022·Granted Sep 3, 2024·2 cites·18 claims
- 0397US11837452B2Charge detection mass spectrometryMICROMASS LTD·Filed 2022·Granted Dec 5, 2023·2 cites·18 claims
- 0497US10861687B2Separating ions in an ion trapMICROMASS LTD·Filed 2016·Granted Dec 8, 2020·10 cites·11 claims
- 0597US10811244B2Method of separating ionsMICROMASS LTD·Filed 2019·Granted Oct 20, 2020·10 cites·19 claims
- 0697US8975578B2Asymmetric field ion mobility in a linear geometry ion trapGREEN MARTIN RAYMOND·Filed 2011·Granted Mar 10, 2015·29 cites·17 claims
- 0796US10446381B2Ion entry/exit deviceMICROMASS LTD·Filed 2018·Granted Oct 15, 2019·9 cites·17 claims
- 0896US9865442B2Curved ion guide with non mass to charge ratio dependent confinementMICROMASS LTD·Filed 2015·Granted Jan 9, 2018·15 cites·20 claims
- 0996US8716660B2Ion guide with orthogonal samplingGREEN MARTIN RAYMOND·Filed 2012·Granted May 6, 2014·24 cites·22 claims
- 1095US12051583B2Ion entry/exit deviceMICROMASS LTD·Filed 2022·Granted Jul 30, 2024·1 cites·17 claims
- 1195US11367602B2Charge detection mass spectrometryMICROMASS LTD·Filed 2019·Granted Jun 21, 2022·8 cites·8 claims
- 1295US10446385B2Method of separating ionsMICROMASS LTD·Filed 2017·Granted Oct 15, 2019·6 cites·20 claims
- 1395US10224196B2Ion trap with spatially extended ion trapping regionMICROMASS LTD·Filed 2016·Granted Mar 5, 2019·13 cites·17 claims
- 1495US9552975B2Mass spectrometers comprising accelerator devicesMICROMASS LTD·Filed 2016·Granted Jan 24, 2017·12 cites·20 claims
- 1595US9214328B2Space focus time of flight mass spectrometerHOYES JOHN BRIAN·Filed 2011·Granted Dec 15, 2015·22 cites·19 claims
- 1695US8946626B2Ion trap with spatially extended ion trapping regionGILES KEVIN·Filed 2012·Granted Feb 3, 2015·23 cites·39 claims
- 1794US9991108B2Ion guide with orthogonal samplingMICROMASS LTD·Filed 2016·Granted Jun 5, 2018·7 cites·17 claims
- 1894US8829464B2Ion guide arrayMICROMASS LTD·Filed 2013·Granted Sep 9, 2014·10 cites·33 claims
- 1992US10991567B2Quadrupole devicesMICROMASS LTD·Filed 2017·Granted Apr 27, 2021·7 cites·14 claims
- 2092US10903062B2Ion entry/exit deviceMICROMASS LTD·Filed 2019·Granted Jan 26, 2021·2 cites·17 claims
- 2192US9425035B2Ion trap with spatially extended ion trapping regionGILES KEVIN·Filed 2012·Granted Aug 23, 2016·12 cites·15 claims
- 2292US9318309B2Mass spectrometers comprising accelerator devicesMICROMASS LTD·Filed 2012·Granted Apr 19, 2016·11 cites·13 claims
- 2392US8546755B2Ion guide arrayMICROMASS LTD·Filed 2013·Granted Oct 1, 2013·8 cites·17 claims
- 2492US8212208B2Linear ion trapGREEN MARTIN RAYMOND·Filed 2009·Granted Jul 3, 2012·15 cites·15 claims
- 2591US9939408B2Travelling wave IMS with counterflow of gasMICROMASS LTD·Filed 2014·Granted Apr 10, 2018·10 cites·20 claims
- 2691US8426803B2Mass spectrometerGREEN MARTIN R·Filed 2008·Granted Apr 23, 2013·12 cites·16 claims
- 2789US8872104B2Segmented planar calibration for correction of errors in time of flight mass spectrometersLANGRIDGE DAVID J·Filed 2012·Granted Oct 28, 2014·8 cites·17 claims
- 2889US2025125135A1Charge detection mass spectrometryMICROMASS LTD·Filed 2024·Application pending·0 cites
- 2989US2024355606A1Ion entry/exit deviceMICROMASS LTD·Filed 2024·Application pending·0 cites
- 3088US9070543B2Ion mobility separator with variable effective lengthMICROMASS LTD·Filed 2014·Granted Jun 30, 2015·5 cites·20 claims
- 3188US8829433B2Ion mobility separator with variable effective lengthGREEN MARTIN RAYMOND·Filed 2012·Granted Sep 9, 2014·5 cites·41 claims
- 3288US8283628B2Ion mobility spectrometerHOYES JOHN BRIAN·Filed 2009·Granted Oct 9, 2012·10 cites·15 claims
- 3388US2024395523A1Separating ions in an ion trapMICROMASS LTD·Filed 2024·Application pending·0 cites
- 3487US12191130B2Charge detection mass spectrometryMICROMASS LTD·Filed 2023·Granted Jan 7, 2025·0 cites·20 claims
- 3587US9721779B2Orthogonal acceleration coaxial cylinder time of flight mass analyserMICROMASS LTD·Filed 2013·Granted Aug 1, 2017·5 cites·36 claims
- 3687US9412575B2Ion guide with orthogonal samplingMICROMASS LTD·Filed 2015·Granted Aug 9, 2016·3 cites·23 claims
- 3787US9245728B2Mass spectrometer with beam expanderMICROMASS LTD·Filed 2015·Granted Jan 26, 2016·3 cites·17 claims
- 3887US8384027B2Ion guide arrayMICROMASS LTD·Filed 2009·Granted Feb 26, 2013·8 cites·15 claims
- 3985US9111654B2DC ion guide for analytical filtering/separationGILES KEVIN·Filed 2012·Granted Aug 18, 2015·6 cites·26 claims
- 4084US11201048B2Quadrupole devicesMICROMASS LTD·Filed 2017·Granted Dec 14, 2021·3 cites·20 claims
- 4184US9829465B2Absorption mode FT-IMSMICROMASS LTD·Filed 2016·Granted Nov 28, 2017·2 cites·15 claims
- 4284US9076640B2Performance improvements for RF-only quadrupole mass filters and linear quadrupole ion traps with axial ejectionMICROMASS LTD·Filed 2014·Granted Jul 7, 2015·4 cites·20 claims
- 4383US9035246B2Ion guide with orthogonal samplingMICROMASS LTD·Filed 2014·Granted May 19, 2015·3 cites·24 claims
- 4482US9177776B2Mass to charge ratio selective ejection from ion guide having supplemental RF voltage applied theretoHOYES JOHN BRIAN·Filed 2011·Granted Nov 3, 2015·5 cites·17 claims
- 4581US9728391B2Orthogonal acceleration coaxial cylinder time of flight mass analyserMICROMASS LTD·Filed 2013·Granted Aug 8, 2017·3 cites·35 claims
- 4681US2024395534A1Mass filter having reduced contaminationMICROMASS LTD·Filed 2024·Application pending·0 cites
- 4778US11527395B2Ion entry/exit deviceMICROMASS LTD·Filed 2020·Granted Dec 13, 2022·0 cites·19 claims
- 4878US9082598B2Segmented planar calibration for correction of errors in time of flight mass spectrometersMICROMASS LTD·Filed 2014·Granted Jul 14, 2015·2 cites·17 claims
- 4977US10832900B2Mass filter having extended operational lifetimeMICROMASS LTD·Filed 2019·Granted Nov 10, 2020·1 cites·17 claims
- 5076US11450517B2Separating ions in an ion trapMICROMASS LTD·Filed 2020·Granted Sep 20, 2022·0 cites·16 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →