Inventor · disambiguated record
Sum Chan
Also filed as: CHAN SUM
23 granted patents·12 pending applications·69 citations·filing 2007–2024
95Inventor score
Files withQUEST DIAGNOSTICS INVEST INC26CHAN SUM3QUEST DIAGNOSTICS INVEST LLC3JIANG QIBO2YANG CHANGMING1
Top patents by PatentIndex Score
35 records- 0196US10571455B2Vitamin B2 detection by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2019·Granted Feb 25, 2020·8 cites·20 claims
- 0294US11300559B2Vitamin B2 detection by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2020·Granted Apr 12, 2022·3 cites·7 claims
- 0392US11513130B2Detection of vitamins A and E by tandem mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2020·Granted Nov 29, 2022·2 cites·10 claims
- 0492US8748810B2Vitamin B2 detection by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2013·Granted Jun 10, 2014·8 cites·17 claims
- 0591US8916817B2Vitamin B2 detection by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2014·Granted Dec 23, 2014·7 cites·22 claims
- 0691US8759754B2Methods for detecting vitamin C by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2013·Granted Jun 24, 2014·5 cites·22 claims
- 0791US8569689B2Methods for detecting vitamin C by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2012·Granted Oct 29, 2013·7 cites·17 claims
- 0891US8338778B2Methods for detecting vitamin C by mass spectrometryJIANG QIBO·Filed 2011·Granted Dec 25, 2012·6 cites·27 claims
- 0991US7952067B2Methods for detecting vitamin C by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2008·Granted May 31, 2011·9 cites·42 claims
- 1090US2025067758A1Detection of vitamins a and e by tandem mass spectrometryQUEST DIAGNOSTICS INVEST LLC·Filed 2024·Application pending·0 cites
- 1190US2025102491A1Vitamin b2 detection by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2024·Application pending·0 cites
- 1290US2025002971A1Mass spectrometry method for measuring thiamine in body fluidQUEST DIAGNOSTICS INVEST INC·Filed 2024·Application pending·0 cites
- 1390US2025054742A1Mass spectrometry method for measuring vitamin b6 in body fluidQUEST DIAGNOSTICS INVEST LLC·Filed 2024·Application pending·0 cites
- 1488US9063119B2Methods for detecting vitamin C by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2014·Granted Jun 23, 2015·4 cites·18 claims
- 1587US12196742B2Vitamin B2 detection by mass spectrometryQUEST DIAGNOSTICS INVEST LLC·Filed 2023·Granted Jan 14, 2025·0 cites·9 claims
- 1687US12165861B2Mass spectrometry method for measuring vitamin B6 in body fluidQUEST DIAGNOSTICS INVEST INC·Filed 2023·Granted Dec 10, 2024·0 cites·10 claims
- 1787US10859584B2Detection of vitamins A and E by tandem mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2019·Granted Dec 8, 2020·2 cites·15 claims
- 1885US9645158B2Methods for detecting vitamin C by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2015·Granted May 9, 2017·2 cites·14 claims
- 1983US12174203B2Detection of vitamins a and e by tandem mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2022·Granted Dec 24, 2024·0 cites·8 claims
- 2082US11821889B2Vitamin B2 detection by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2022·Granted Nov 21, 2023·0 cites·8 claims
- 2180US9234901B2Mass spectrometry method for measuring vitamin B6 in body fluidsJIANG QIBO·Filed 2011·Granted Jan 12, 2016·2 cites·18 claims
- 2278US2021239718A1Methods for detecting vitamin c by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2021·Application pending·0 cites
- 2375US12116617B2Mass spectrometry method for measuring thiamine in body fluidQUEST DIAGNOSTICS INVEST INC·Filed 2020·Granted Oct 15, 2024·0 cites·9 claims
- 2474US11798794B2Mass spectrometry method for measuring vitamin B6 in body fluidQUEST DIAGNOSTICS INVEST INC·Filed 2020·Granted Oct 24, 2023·0 cites·6 claims
- 2574US8017403B2Mass spectrometry method for measuring vitamin B6 in body fluidQUEST DIAGNOSTICS INVEST INC·Filed 2007·Granted Sep 13, 2011·2 cites·26 claims
- 2671US10738344B2Mass spectrometry method for measuring thiamine in body fluidQUEST DIAGNOSTICS INVEST INC·Filed 2018·Granted Aug 11, 2020·0 cites·10 claims
- 2768US10215765B2Detection of vitamins A and E by tandem mass spectrometryCHAN SUM·Filed 2011·Granted Feb 26, 2019·2 cites·15 claims
- 2866US2017242044A1Methods for detecting vitamin c by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2017·Application pending·0 cites
- 2966US2015060659A1Vitamin b2 detection by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2014·Application pending·0 cites
- 3064US2016126075A1Mass spectrometry method for measuring vitamin b6 in body fluidsQUEST DIAGNOSTICS INVEST INC·Filed 2016·Application pending·0 cites
- 3163US2020003795A1Determination of analytes in liquid samples by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2019·Application pending·0 cites
- 3261US2013115644A1Mass spectrometry method for measuring thiamine in body fluidQUEST DIAGNOSTICS INVEST INC·Filed 2012·Application pending·0 cites
- 3359US8399829B2Vitamin B2 detection by mass spectrometryYANG CHANGMING·Filed 2009·Granted Mar 19, 2013·0 cites·2 claims
- 3453US2009093009A1Mass spectrometry method for measuring thiamine in body fluidCHAN SUM·Filed 2007·Application pending·0 cites
- 3547US2011306080A1Determination of lamotrigine by mass spectrometryCHAN SUM·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →