Inventor · disambiguated record

Richard E. Reitz

Also filed as: REITZ RICHARD · REITZ RICHARD E

89 granted patents·21 pending applications·1,055 citations·filing 2003–2025

99Inventor score

Technology areasG01N H01J Y10T G16B G16H

Files withQUEST DIAGNOSTICS INVEST INC75 QUEST DIAGNOSTICS INVEST LLC8 CAULFIELD MICHAEL P5 HOLMQUIST BRETT4 GHOSHAL AMIT3

Top patents by PatentIndex Score

110 records

0198US11921122B2Methods for detecting vitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2023·Granted Mar 5, 2024·3 cites·4 claims
0298US11579154B2Methods for detecting vitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2021·Granted Feb 14, 2023·9 cites·8 claims
0398US10267810B2Methods for detecting vitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2017·Granted Apr 23, 2019·17 cites·16 claims
0498US10191064B2Thyroglobulin quantitation by mass spectroscopyQUEST DIAGNOSTICS INVEST INC·Filed 2018·Granted Jan 29, 2019·19 cites·9 claims
0598US9915663B2Thyroglobulin quantitation by mass spectroscopyQUEST DIAGNOSTICS INVEST INC·Filed 2017·Granted Mar 13, 2018·26 cites·11 claims
0698US9880180B2Methods for detecting vitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2016·Granted Jan 30, 2018·18 cites·26 claims
0798US9580740B2Thyroglobulin quantitation by mass spectroscopyQUEST DIAGNOSTICS INVEST INC·Filed 2015·Granted Feb 28, 2017·22 cites·18 claims
0898US9535077B2Vitamin D metabolite determination utilizing mass spectrometry following derivatizationQUEST DIAGNOSTICS INVEST INC·Filed 2013·Granted Jan 3, 2017·20 cites·30 claims
0998US9046531B2Thyroglobulin quantitation by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2013·Granted Jun 2, 2015·23 cites·29 claims
1098US8574915B2Thyroglobulin quantitation by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2013·Granted Nov 5, 2013·52 cites·20 claims
1198US8076157B2Vitamin D metabolite determination utilizing mass spectrometry following derivatizationHOLMQUIST BRETT·Filed 2011·Granted Dec 13, 2011·31 cites·81 claims
1298US7745226B2Methods for detecting vitamin D metabolitesQUEST DIAGNOSTICS INVEST INC·Filed 2005·Granted Jun 29, 2010·55 cites·23 claims
1398US7348137B2Determination of testosterone by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2005·Granted Mar 25, 2008·77 cites·50 claims
1497US10935558B2Methods for detecting vitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2019·Granted Mar 2, 2021·11 cites·16 claims
1597US9529004B2Methods for detecting vitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2016·Granted Dec 27, 2016·20 cites·10 claims
1697US9244084B2Methods for detecting vitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2014·Granted Jan 26, 2016·24 cites·20 claims
1797US9012394B2Thyroglobulin quantitation by mass spectroscopyQUEST DIAGNOSTICS INVEST INC·Filed 2013·Granted Apr 21, 2015·23 cites·13 claims
1897US8936943B2Methods for detecting vitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2013·Granted Jan 20, 2015·24 cites·20 claims
1997US8431411B2Methods for detecting vitamin D metabolites by mass spectrometryCLARKE NIGEL·Filed 2011·Granted Apr 30, 2013·28 cites·25 claims
2097US8173442B2Methods for detecting dihydroxyvitamin D metabolites by mass spectrometryHOLMQUIST BRETT·Filed 2011·Granted May 8, 2012·40 cites·26 claims
2197US7972868B2Methods for detecting dihydroxyvitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2007·Granted Jul 5, 2011·43 cites·20 claims
2297US6977143B1Determination of testosterone by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2003·Granted Dec 20, 2005·95 cites·39 claims
2396US12066446B2Methods for detecting dihydroxyvitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2023·Granted Aug 20, 2024·3 cites·7 claims
2496US11650216B2Methods for detecting dihydroxyvitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2020·Granted May 16, 2023·10 cites·7 claims
2596US8101427B2Methods for detecting vitamin D metabolites by mass spectrometryCLARKE NIGEL·Filed 2011·Granted Jan 24, 2012·35 cites·23 claims
2696US8030084B2Thyroglobulin quantitation by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2007·Granted Oct 4, 2011·24 cites·11 claims
2796US7972867B2Methods for detecting vitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2006·Granted Jul 5, 2011·42 cites·31 claims
2895US11454637B2Quantitation of insulin-like growth factor-I and insulin-like growth factor-II with high-resolution mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2020·Granted Sep 27, 2022·3 cites·10 claims
2995US10648989B2Quantitation of insulin-like growth factor-I and insulin-like growth factor-II with high-resolution mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2017·Granted May 12, 2020·6 cites·11 claims
3095US10324082B2Methods for quantitation of insulin levels by mass spectrometryQUEST DIAGNOSTICS INVEST LLC·Filed 2016·Granted Jun 18, 2019·11 cites·59 claims
3195US8455259B2Thyroglobulin quantitation by mass spectrometryZHANG YANNI·Filed 2011·Granted Jun 4, 2013·23 cites·28 claims
3295US7977117B2Vitamin D metabolite determination utilizing mass spectrometry following derivatizationQUEST DIAGNOSTICS INVEST INCORPRATED·Filed 2009·Granted Jul 12, 2011·30 cites·82 claims
3394US7804063B2Methods for detecting dihydrotestosterone by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2008·Granted Sep 28, 2010·17 cites·32 claims
3493US11680949B2Lipoprotein analysis by differential charged-particle mobilityQUEST DIAGNOSTICS INVEST INC·Filed 2021·Granted Jun 20, 2023·2 cites·20 claims
3593US8410428B2Methods for detecting dihydrotestosterone by mass spectrometryGHOSHAL AMIT·Filed 2012·Granted Apr 2, 2013·9 cites·12 claims
3693US8247235B2Lipoprotein analysis by differential charged-particle mobilityCAULFIELD MICHAEL P·Filed 2007·Granted Aug 21, 2012·13 cites·27 claims
3792US8563922B2Methods for detecting dihydrotestosterone by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2013·Granted Oct 22, 2013·8 cites·20 claims
3892US2025093364A1Thyroglobulin quantitation by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2024·Application pending·0 cites
3991US12493049B2Quantitation of insulin-like growth factor-I and insulin-like growth factor-II with high-resolution mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2024·Granted Dec 9, 2025·0 cites·15 claims
4091US10948503B2Lipoprotein analysis by differential charged-particle mobilityQUEST DIAGNOSTICS INVEST INC·Filed 2019·Granted Mar 16, 2021·3 cites·20 claims
4191US9791464B2Lipoprotein analysis by differential charged-particle mobilityQUEST DIAGNOSTICS INVEST INC·Filed 2015·Granted Oct 17, 2017·4 cites·6 claims
4291US8916680B2Kisspeptin-54 detection by tandem mass spectrometryBYSTROM CORY E·Filed 2012·Granted Dec 23, 2014·8 cites·26 claims
4391US8759754B2Methods for detecting vitamin C by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2013·Granted Jun 24, 2014·5 cites·22 claims
4491US8569689B2Methods for detecting vitamin C by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2012·Granted Oct 29, 2013·7 cites·17 claims
4591US8338778B2Methods for detecting vitamin C by mass spectrometryJIANG QIBO·Filed 2011·Granted Dec 25, 2012·6 cites·27 claims
4691US7952067B2Methods for detecting vitamin C by mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2008·Granted May 31, 2011·9 cites·42 claims
4790US12287346B2Methods for detecting vitamin D metabolites by mass spectrometryQUEST DIAGNOSTICS INVEST LLC·Filed 2024·Granted Apr 29, 2025·0 cites·4 claims
4890US10203337B2Kisspeptin-54 detection by tandem mass spectrometryQUEST DIAGNOSTICS INVEST INC·Filed 2018·Granted Feb 12, 2019·2 cites·7 claims
4990US8709818B2Lipoprotein analysis by differential charged-particle mobilityCAULFIELD MICHAEL P·Filed 2012·Granted Apr 29, 2014·4 cites·9 claims
5090US2025002971A1Mass spectrometry method for measuring thiamine in body fluidQUEST DIAGNOSTICS INVEST INC·Filed 2024·Application pending·0 cites

Showing the top 50 of 110 patent records by PatentIndex Score.

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →