Inventor · disambiguated record
David Ledden
Also filed as: LEDDEN DAVID · LEDDEN DAVID J
26 granted patents·13 pending applications·317 citations·filing 1986–2025
94Inventor score
Files withSIEMENS HEALTHCARE DIAGNOSTICS INC30BOEHRINGER MANNHEIM CORP3SIEMENS HEALTHCARE DIAGNOSTICS3KRAUTH GARY H1MILES INC1
Top patents by PatentIndex Score
39 records- 0194US5356782AAnalytical test apparatus with on board negative and positive controlBOEHRINGER MANNHEIM CORP·Filed 1992·Granted Oct 18, 1994·189 cites·30 claims
- 0288US9416776B2Microfluidic distributing deviceSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2014·Granted Aug 16, 2016·14 cites·20 claims
- 0383US10371661B2Luminescent oxygen channeling immunoassays utilizing electrochemical discharge of singlet oxygen and methods of production and use thereofSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2014·Granted Aug 6, 2019·4 cites·17 claims
- 0482US11369314B2Biofouling prevention of wearable sensors and methods of use and calibration related theretoSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2017·Granted Jun 28, 2022·2 cites·15 claims
- 0582US7499154B2Readhead for optical inspection apparatusSIEMENS HEALTHCARE DIAGNOSTICS·Filed 2004·Granted Mar 3, 2009·25 cites·37 claims
- 0680US2025347683A1Tangent flow hemolysis detection blood testing deviceSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2025·Application pending·0 cites
- 0773US11339419B2Scavenger protein(s) for improved preservation of analyte detection sensor(s) and method(s) of use thereofSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2018·Granted May 24, 2022·1 cites·19 claims
- 0868US12399169B2Tangent flow hemolysis detection blood testing deviceSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2019·Granted Aug 26, 2025·0 cites·19 claims
- 0967US11585808B2Devices, methods, and kits for multiplexing a fluid sample via fluid sample reuseSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2021·Granted Feb 21, 2023·0 cites·20 claims
- 1066US4810635ASpecific binding assays employing label analog to reduce sample interferencesMILES INC·Filed 1986·Granted Mar 7, 1989·32 cites·12 claims
- 1165US2021349107A1Detection of hemolysis using a chromatographic detection padSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2021·Application pending·0 cites
- 1263US12366571B2Luminescent oxygen channeling immunoassay utilizing three antibodies and methods of production and use thereofSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2021·Granted Jul 22, 2025·0 cites·20 claims
- 1363US2019170759A1Heterogeneous luminescent oxygen channeling immunoassays and methods of production and use thereofSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2019·Application pending·0 cites
- 1459US7538336B2Automatic identification of reagent test strips using reflectance valuesSIEMENS HEALTHCARE DIAGNOSTICS·Filed 2004·Granted May 26, 2009·2 cites·33 claims
- 1559US2020031889A1Proteolytic digestion of cardiac troponin iSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2019·Application pending·0 cites
- 1658US12311363B2HBA1c assay slide and method of making sameSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2020·Granted May 27, 2025·0 cites·16 claims
- 1758US2016025736A1Heterogeneous luminescent oxygen channeling immunoassays and methods of production and use thereofSIEMENS HEALTHCARE DIAGNOSTICS·Filed 2014·Application pending·0 cites
- 1857US11460475B2Composition of a bilirubin stock and a method of preparation thereofSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2019·Granted Oct 4, 2022·0 cites·16 claims
- 1957US2019331675A1Devices, methods, and kits for multiplexing a fluid sample via fluid sample reuseSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2017·Application pending·0 cites
- 2056US5492813AMuteins of β-galactosidase fragments having increased activityBOEHRINGER MANNHEIM CORP·Filed 1993·Granted Feb 20, 1996·20 cites·36 claims
- 2154US10371643B2Luminescent oxygen channeling immunoassaysSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2014·Granted Aug 6, 2019·0 cites·16 claims
- 2254US2023210890A1Compositions and methods of treating covid-19 with heparin or other negatively charged moleculesSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2021·Application pending·0 cites
- 2352US11850583B2Plasma separation and sample metering device and kits and methods of use related theretoSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2020·Granted Dec 26, 2023·0 cites·29 claims
- 2450US11480558B2Method and device comprising an optical fiber located inside a channel for determining the concentration of analyte in whole blood based on change of reflected light wavelengthSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2018·Granted Oct 25, 2022·0 cites·16 claims
- 2550US10472403B2Proteolytic digestion of cardiac troponin ISIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2015·Granted Nov 12, 2019·0 cites·5 claims
- 2650US5464747AOxidation-resistant muteins of β-galactosidase fragmentsBOEHRINGER MANNHEIM CORP·Filed 1993·Granted Nov 7, 1995·15 cites·16 claims
- 2750US2022137031A1Hemolysis detection blood testing deviceSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2019·Application pending·0 cites
- 2849US11460476B2Dye-based liquid reagent volume indicator for use in analyte detection assaysSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2020·Granted Oct 4, 2022·0 cites·20 claims
- 2949US2017108516A1Detection of hemolysis using a chromatographic detection padSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2015·Application pending·0 cites
- 3048US11040350B2Liquid analytical reagent dispensing apparatus and analytical kits and methods of use related theretoSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2017·Granted Jun 22, 2021·0 cites·26 claims
- 3148US2017176419A1Luminescent oxygen channeling immunoassay utilizing three antibodies and methods of production and use thereofSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2015·Application pending·0 cites
- 3248US2023400394A1Sample collection apparatus and methods for immunoassay testingSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2021·Application pending·0 cites
- 3345US10391484B2Sample delivery systemSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2015·Granted Aug 27, 2019·0 cites·10 claims
- 3441US2021285945A1Low sample volume urinalysis assay strip, analytical kits, and methods of use related theretoSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2017·Application pending·0 cites
- 3540US10105701B2Microfluidic distributing deviceSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2016·Granted Oct 23, 2018·0 cites·8 claims
- 3640US6093546AProcess for preparing test elementsROCHE DIAGNOSTICS·Filed 1992·Granted Jul 25, 2000·11 cites·28 claims
- 3738US10288628B2Spectroscopic methods for the detection of glycated hemoglobinSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2015·Granted May 14, 2019·0 cites·7 claims
- 3835US2018306815A1Lateral flow assay ratio testSIEMENS HEALTHCARE DIAGNOSTICS INC·Filed 2015·Application pending·0 cites
- 3933US8101429B2Native analyte as a reference in lateral flow assaysKRAUTH GARY H·Filed 2004·Granted Jan 24, 2012·2 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →