Inventor · disambiguated record
James Duffin
Also filed as: DUFFIN JAMES
10 granted patents·18 pending applications·5 citations·filing 2009–2025
78Inventor score
Top patents by PatentIndex Score
28 records- 0180US10850052B2Apparatus to attain and maintain target end tidal partial pressure of a gasTHORNHILL SCIENT INC·Filed 2017·Granted Dec 1, 2020·5 cites·24 claims
- 0274US12446803B2Method and system of measuring brain oxygenation using deoxyhemoglobin contrastTHORNHILL SCIENT INC·Filed 2024·Granted Oct 21, 2025·0 cites·16 claims
- 0374US12419531B2Implementing a periodic deoxyhemoglobin signalTHORNHILL SCIENT INC·Filed 2022·Granted Sep 23, 2025·0 cites·12 claims
- 0472US2025318745A1System and method for direct quantification of perfusion metrics using a stepwise change in deoxyhemoglobinTHORNHILL SCIENT INC·Filed 2025·Application pending·0 cites
- 0563US11464414B2Non-invasive cardiac output determinationTHORNHILL SCIENT INC·Filed 2019·Granted Oct 11, 2022·0 cites·20 claims
- 0661US2022016368A1Method and apparatus to attain and maintain target arterial blood gas concentrations using ramp sequencesTHORNHILL SCIENT INC·Filed 2021·Application pending·0 cites
- 0759US12440118B2System and method for determining arterial input function based on susceptibility contrast in the choroid plexusTHORNHILL SCIENT INC·Filed 2023·Granted Oct 14, 2025·0 cites·9 claims
- 0858US2018353083A1Non-invasive cardiac output determinationFISHER JOSEPH·Filed 2018·Application pending·0 cites
- 0955US2017224230A1Non-invasive cardiac output determinationFISHER JOSEPH·Filed 2017·Application pending·0 cites
- 1052US2024135558A1Imaging abnormalities in vascular responseTHORNHILL SCIENT INC·Filed 2023·Application pending·0 cites
- 1151US11077266B2Method and apparatus to attain and maintain target arterial blood gas concentrations using ramp sequencesTHORNHILL SCIENT INC·Filed 2018·Granted Aug 3, 2021·0 cites·19 claims
- 1251US2018344967A1Anesthetic delivery systemFISHER JOSEPH·Filed 2018·Application pending·0 cites
- 1350US2024358946A1Controlling the concentration of deoxyhemoglobin in a subjectTHORNHILL SCIENT INC·Filed 2022·Application pending·0 cites
- 1449US2011144516A1Relative contribution of thoracic muscles to breathingFISHER JOSEPH·Filed 2009·Application pending·0 cites
- 1548US2013109978A1Non-invasive cardiac output determinationFISHER JOSEPH·Filed 2011·Application pending·0 cites
- 1647US12336783B2Identifying the vascularity of cerebral tissue in subjects using deoxyhemoglobin contrastTHORNHILL SCIENT INC·Filed 2022·Granted Jun 24, 2025·0 cites·11 claims
- 1747US2015059744A1Anesthetic delivery systemFISHER JOSEPH·Filed 2013·Application pending·0 cites
- 1847US2017232223A1Non-invasive arterial blood gas determinationTHORNHILL SCIENT INC·Filed 2016·Application pending·0 cites
- 1946US11998351B2Testing for neurovascular uncoupling in multiple sclerosis using sequential gas delivery versus fixed inspired CO2THORNHILL SCIENT INC·Filed 2020·Granted Jun 4, 2024·0 cites·16 claims
- 2046US2024285196A1A method and system for determining a perfusion metric using deoxyhemoglobin as a contrast agentTHORNHILL SCIENT INC·Filed 2022·Application pending·0 cites
- 2146US2023000389A1Measurement of alveolar dead space using sequential gas deliveryTHORNHILL SCIENT INC·Filed 2020·Application pending·0 cites
- 2245US2012215124A1Non-invasive arterial blood gas determinationFISHER JOSEPH·Filed 2012·Application pending·0 cites
- 2345US2025160645A1Dynamic susceptibility contrast using a pre-determined arterial input functionTHORNHILL SCIENT INC·Filed 2023·Application pending·0 cites
- 2444US2015114394A1Method and apparatus to attain and maintain target arterial blood gas concentrations using ramp sequencesKLEIN MICHAEL·Filed 2013·Application pending·0 cites
- 2544US2014311491A1Apparatus to attain and maintain target end tidal partial pressure of a gasKLEIN MICHAEL·Filed 2012·Application pending·0 cites
- 2639US2023056088A1Deoxyhemoglobin in magnetic resonance imagingCRAWLEY ADRIAN P·Filed 2020·Application pending·0 cites
- 2732US11880989B2Imaging abnormalities in vascular responseTHORNHILL SCIENT INC·Filed 2016·Granted Jan 23, 2024·0 cites·19 claims
- 2831US10791931B2Imaging reductions in cerebrovascular reactivityTHORNHILL SCIENT INC·Filed 2015·Granted Oct 6, 2020·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →