Inventor · disambiguated record
Badrinath Nagarajan
Also filed as: NAGARAJAN BADRINATH
45 granted patents·8 pending applications·113 citations·filing 2017–2025
97Inventor score
Files withNEXTNAV LLC53
Top patents by PatentIndex Score
53 records- 0197US11333567B2Constraining barometric pressure sensor calibration with sporadic data collectionNEXTNAV LLC·Filed 2021·Granted May 17, 2022·5 cites·29 claims
- 0297US11215453B2Floor height estimation and calibration of a mobile deviceNEXTNAV LLC·Filed 2020·Granted Jan 4, 2022·7 cites·20 claims
- 0396US11841285B2Constraining barometric pressure sensor calibration with sporadic data collectionNEXTNAV LLC·Filed 2023·Granted Dec 12, 2023·2 cites·27 claims
- 0496US11761765B2Calibrating a pressure sensorNEXTNAV LLC·Filed 2022·Granted Sep 19, 2023·3 cites·19 claims
- 0596US11674798B2Systems and methods for determining calibration values for atmospheric sensors that provide measured pressures used for estimating altitudes of mobile devicesNEXTNAV LLC·Filed 2021·Granted Jun 13, 2023·3 cites·15 claims
- 0695US11669170B2Systems and methods for determining contexts of mobile devicesNEXTNAV LLC·Filed 2021·Granted Jun 6, 2023·2 cites·20 claims
- 0795US11199406B2Systems and methods for calibrating unstable sensorsNEXTNAV LLC·Filed 2019·Granted Dec 14, 2021·14 cites·19 claims
- 0894US10514258B2Systems and methods for calibrating unstable sensorsNEXTNAV LLC·Filed 2017·Granted Dec 24, 2019·18 cites·12 claims
- 0993US12130155B2Systems and methods for determining calibration values for atmospheric sensors that provide measured pressures used for estimating altitudes of mobile devicesNEXTNAV LLC·Filed 2023·Granted Oct 29, 2024·1 cites·15 claims
- 1093US11913809B2Systems and methods for extending the spatial coverage of a reference pressure networkNEXTNAV LLC·Filed 2022·Granted Feb 27, 2024·1 cites·28 claims
- 1192US12038280B2Calibrating a pressure sensorNEXTNAV LLC·Filed 2023·Granted Jul 16, 2024·1 cites·19 claims
- 1292US11555699B2Systems and methods for determining when an estimated altitude of a mobile device can be used for calibration or location determinationNEXTNAV LLC·Filed 2019·Granted Jan 17, 2023·7 cites·21 claims
- 1392US11536564B2Systems and methods for pressure-based estimation of a mobile device altitude or calibration of a pressure sensorNEXTNAV LLC·Filed 2019·Granted Dec 27, 2022·5 cites·18 claims
- 1490US12101689B2Characterizing height above terrain confidenceNEXTNAV LLC·Filed 2022·Granted Sep 24, 2024·1 cites·12 claims
- 1590US12025471B2Systems and methods for estimating a difference in height between two floors in a building for use in estimating a height or an altitude of one of the two floorsNEXTNAV LLC·Filed 2022·Granted Jul 2, 2024·1 cites·14 claims
- 1690US11808608B2Systems and methods for extending the spatial coverage of a reference pressure networkNEXTNAV LLC·Filed 2022·Granted Nov 7, 2023·1 cites·18 claims
- 1790US11579036B2Constraining barometric pressure sensor calibration with sporadic data collectionNEXTNAV LLC·Filed 2022·Granted Feb 14, 2023·1 cites·29 claims
- 1889US11064320B2Systems and methods for using a pressure sensor of a mobile device to improve the reliability of determined contextsNEXTNAV LLC·Filed 2020·Granted Jul 13, 2021·2 cites·18 claims
- 1989US10704905B2Systems and methods for determining a reference pressure for use in estimating an altitude of a mobile deviceNEXTNAV LLC·Filed 2017·Granted Jul 7, 2020·6 cites·20 claims
- 2089US10477358B1Systems and methods for determining whether a mobile device is inside an environment experiencing adverse pressure variation conditionsNEXTNAV LLC·Filed 2019·Granted Nov 12, 2019·6 cites·21 claims
- 2188US11892295B2Systems and methods for calibrating unstable sensorsNEXTNAV LLC·Filed 2021·Granted Feb 6, 2024·1 cites·17 claims
- 2288US11733038B2Floor height estimation and calibration of a mobile deviceNEXTNAV LLC·Filed 2022·Granted Aug 22, 2023·1 cites·20 claims
- 2388US11733119B2Systems and methods for determining when to calibrate a pressure sensor of a mobile deviceNEXTNAV LLC·Filed 2021·Granted Aug 22, 2023·1 cites·18 claims
- 2488US11073441B2Systems and methods for determining when to calibrate a pressure sensor of a mobile deviceNEXTNAV LLC·Filed 2019·Granted Jul 27, 2021·4 cites·18 claims
- 2588US10921121B2Systems and methods for determining calibration values for atmospheric sensors that provide measured pressures used for estimating altitudes of mobile devicesNEXTNAV LLC·Filed 2019·Granted Feb 16, 2021·4 cites·11 claims
- 2687US11740081B2Systems and methods for determining which reference-level pressures are used when estimating an altitude of a mobile deviceNEXTNAV LLC·Filed 2021·Granted Aug 29, 2023·1 cites·20 claims
- 2786US11991605B2Methods for using a pressure sensor of a mobile device to improve the accuracy of determined contextsNEXTNAV LLC·Filed 2021·Granted May 21, 2024·1 cites·18 claims
- 2886US11418914B2Characterizing height above terrain confidenceNEXTNAV LLC·Filed 2021·Granted Aug 16, 2022·1 cites·19 claims
- 2985US12498219B2Systems and methods for extending the spatial coverage of a reference pressure networkNEXTNAV LLC·Filed 2024·Granted Dec 16, 2025·0 cites·18 claims
- 3084US12209924B2Constraining barometric pressure sensor calibration with sporadic data collectionNEXTNAV LLC·Filed 2023·Granted Jan 28, 2025·0 cites·30 claims
- 3184US12061096B2Barometric pressure sensor calibration based on activity contextNEXTNAV LLC·Filed 2021·Granted Aug 13, 2024·1 cites·26 claims
- 3283US12298196B2Systems and methods for determining when to calibrate a pressure sensor of a mobile deviceNEXTNAV LLC·Filed 2023·Granted May 13, 2025·0 cites·20 claims
- 3383US12228402B2Systems and methods for calibrating unstable sensorsNEXTNAV LLC·Filed 2023·Granted Feb 18, 2025·0 cites·14 claims
- 3481US11204646B2Systems and methods for determining contexts of mobile devicesNEXTNAV LLC·Filed 2020·Granted Dec 21, 2021·1 cites·17 claims
- 3579US11460298B2Systems and methods for estimating a difference in height between two floors in a building for use in estimating a height or an altitude of one of the two floorsNEXTNAV LLC·Filed 2019·Granted Oct 4, 2022·2 cites·14 claims
- 3679US10378894B2Systems and methods for estimating and altitude of a mobile device based on detected temperature conditionsNEXTNAV LLC·Filed 2017·Granted Aug 13, 2019·2 cites·20 claims
- 3778US12130968B2Systems and methods for determining contexts of mobile devicesNEXTNAV LLC·Filed 2023·Granted Oct 29, 2024·0 cites·14 claims
- 3878US10602476B2Systems and methods for determining an indoor or outdoor location of a mobile deviceNEXTNAV LLC·Filed 2019·Granted Mar 24, 2020·3 cites·30 claims
- 3977US12405110B2Systems and methods for pressure-based estimation of a mobile device altitude or calibration of a pressure sensorNEXTNAV LLC·Filed 2022·Granted Sep 2, 2025·0 cites·18 claims
- 4077US2025283733A1Device Based Barometric Pressure Sensor CalibrationNEXTNAV LLC·Filed 2025·Application pending·0 cites
- 4175US11243076B2Systems and methods for extending the spatial coverage of a reference pressure networkNEXTNAV LLC·Filed 2019·Granted Feb 8, 2022·1 cites·7 claims
- 4274US12270967B2Field calibration of reference weather stationsNEXTNAV LLC·Filed 2022·Granted Apr 8, 2025·0 cites·3 claims
- 4374US11181365B2Systems and methods for determining which reference-level pressures are used when estimating an altitude of a mobile deviceNEXTNAV LLC·Filed 2019·Granted Nov 23, 2021·1 cites·14 claims
- 4473US12345546B2Device based barometric pressure sensor calibrationNEXTNAV LLC·Filed 2022·Granted Jul 1, 2025·0 cites·20 claims
- 4571US2025199199A1Field Calibration of Reference Weather StationsNEXTNAV LLC·Filed 2025·Application pending·0 cites
- 4669US11255665B2Systems and methods for determining where to place atmospheric sensors used to estimate an altitude of a mobile device in an environmentNEXTNAV LLC·Filed 2019·Granted Feb 22, 2022·1 cites·12 claims
- 4767US2025052571A1Systems And Methods For Extending The Spatial Coverage Of A Reference Pressure NetworkNEXTNAV LLC·Filed 2024·Application pending·0 cites
- 4859US2023221203A1Triggering the collecting and/or using of calibration dataNEXTNAV LLC·Filed 2023·Application pending·0 cites
- 4959US2025271322A1Correcting HVAC Effect on Pressure Sensor MeasurementNEXTNAV LLC·Filed 2025·Application pending·0 cites
- 5059US2025334403A1Altitude Determination With Relative Pressure ChangeNEXTNAV LLC·Filed 2025·Application pending·0 cites
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →