Inventor · disambiguated record
Ram Ranjan
Also filed as: RANJAN RAM
44 granted patents·19 pending applications·103 citations·filing 2013–2024
97Inventor score
Files withHAMILTON SUNDSTRAND CORP50UNITED TECHNOLOGIES CORP6OTIS ELEVATOR CO2ROSEMOUNT AEROSPACE INC2GOODRICH CORP1
Top patents by PatentIndex Score
63 records- 0196US11731780B2Aircraft system including a cryogenic fluid operated auxiliary power unit (APU)HAMILTON SUNDSTRAND CORP·Filed 2021·Granted Aug 22, 2023·6 cites·14 claims
- 0296US11493286B1Header for high-pressure heat exchangerHAMILTON SUNDSTRAND CORP·Filed 2021·Granted Nov 8, 2022·10 cites·18 claims
- 0395US11629637B2Supercritical carbon dioxide-cooled generator and turbineHAMILTON SUNDSTRAND CORP·Filed 2020·Granted Apr 18, 2023·4 cites·18 claims
- 0494US12084194B2Fuel storage leak mitigation for aircraftHAMILTON SUNDSTRAND CORP·Filed 2021·Granted Sep 10, 2024·2 cites·18 claims
- 0594US11187148B1Power and cooling unit (PCU)HAMILTON SUNDSTRAND CORP·Filed 2020·Granted Nov 30, 2021·11 cites·20 claims
- 0694US11085700B2Branching heat exchangersHAMILTON SUNDSTRAND CORP·Filed 2018·Granted Aug 10, 2021·8 cites·20 claims
- 0794US11045912B2Method of fabricating an oscillating heat pipeHAMILTON SUNDSTRAND CORP·Filed 2019·Granted Jun 29, 2021·5 cites·12 claims
- 0892US11988418B2Vapor compression cycle with direct pumped two-phase coolingHAMILTON SUNDSTRAND CORP·Filed 2022·Granted May 21, 2024·3 cites·20 claims
- 0992US11536164B1Closed-loop brayton cycle system with turbine blade coolingHAMILTON SUNDSTRAND CORP·Filed 2022·Granted Dec 27, 2022·2 cites·20 claims
- 1092US10995997B2Heat exchanger with integral featuresHAMILTON SUNDSTRAND CORP·Filed 2018·Granted May 4, 2021·5 cites·10 claims
- 1192US9220184B2Advanced cooling for power module switchesHAMILTON SUNDSTRAND CORP·Filed 2013·Granted Dec 22, 2015·16 cites·20 claims
- 1290US10845135B2Inlet header duct design featuresHAMILTON SUNDSTRAND CORP·Filed 2018·Granted Nov 24, 2020·3 cites·19 claims
- 1389US11237031B2Additively manufactured heaters for air data probes having a heater layer and a dielectric layer on the air data probe bodyROSEMOUNT AEROSPACE INC·Filed 2019·Granted Feb 1, 2022·5 cites·12 claims
- 1489US11112183B2Heat exchanger channelsHAMILTON SUNDSTRAND CORP·Filed 2016·Granted Sep 7, 2021·3 cites·9 claims
- 1589US10415901B2Counter-flow ceramic heat exchanger assembly and methodHAMILTON SUNDSTRAND CORP·Filed 2016·Granted Sep 17, 2019·5 cites·14 claims
- 1688US11333438B2Heat exchanger with water extractionHAMILTON SUNDSTRAND CORP·Filed 2018·Granted May 17, 2022·3 cites·9 claims
- 1787US11542840B2Hybrid power generation systemsHAMILTON SUNDSTRAND CORP·Filed 2021·Granted Jan 3, 2023·2 cites·18 claims
- 1887US11415378B2Inlet header duct design featuresHAMILTON SUNDSTRAND CORP·Filed 2020·Granted Aug 16, 2022·1 cites·7 claims
- 1987US2024356050A1Water recovery system for fuel cellsHAMILTON SUNDSTRAND CORP·Filed 2024·Application pending·0 cites
- 2083US10450892B2Thermal management of turbine casing using varying working mediumsUNITED TECHNOLOGIES CORP·Filed 2017·Granted Oct 22, 2019·3 cites·20 claims
- 2182US11912416B2Hydrogen systems for environmental control systems onboard aircraftHAMILTON SUNDSTRAND CORP·Filed 2021·Granted Feb 27, 2024·2 cites·20 claims
- 2282US2023288143A1Heat exchanger channelsHAMILTON SUNDSTRAND CORP·Filed 2023·Application pending·0 cites
- 2377US12130099B2Header for high-pressure heat exchangerHAMILTON SUNDSTRAND CORP·Filed 2022·Granted Oct 29, 2024·0 cites·20 claims
- 2477US12057609B2Water recovery system for fuel cellsHAMILTON SUNDSTRAND CORP·Filed 2021·Granted Aug 6, 2024·0 cites·18 claims
- 2576US2021372706A1Heat exchanger channelsHAMILTON SUNDSTRAND CORP·Filed 2021·Application pending·0 cites
- 2675US11965699B2Heat exchangersHAMILTON SUNDSTRAND CORP·Filed 2021·Granted Apr 23, 2024·0 cites·5 claims
- 2775US11371780B2Heat exchanger with integral featuresHAMILTON SUNDSTRAND CORP·Filed 2018·Granted Jun 28, 2022·1 cites·13 claims
- 2874US11952910B2Additively manufactured radial turbine rotor with cooling manifoldsHAMILTON SUNDSTRAND CORP·Filed 2023·Granted Apr 9, 2024·0 cites·19 claims
- 2974US11001477B2Elevator linear propulsion system with cooling deviceOTIS ELEVATOR CO·Filed 2016·Granted May 11, 2021·1 cites·20 claims
- 3073US10646969B2Cross flow ceramic heat exchanger and method for manufacturingHAMILTON SUNDSTRAND CORP·Filed 2015·Granted May 12, 2020·1 cites·10 claims
- 3172US11243030B2Heat exchangersHAMILTON SUNDSTRAND CORP·Filed 2016·Granted Feb 8, 2022·1 cites·7 claims
- 3271US12447502B2Additively manufactured heaters for air data probesROSEMOUNT AEROSPACE INC·Filed 2022·Granted Oct 21, 2025·0 cites·20 claims
- 3370US2021213571A1Method of fabricating an oscillating heat pipeHAMILTON SUNDSTRAND CORP·Filed 2021·Application pending·0 cites
- 3467US11680487B2Additively manufactured radial turbine rotor with cooling manifoldsHAMILTON SUNDSTRAND CORP·Filed 2021·Granted Jun 20, 2023·0 cites·20 claims
- 3566US12135036B2Centerbody insertion for improved CAC motor coolingHAMILTON SUNDSTRAND CORP·Filed 2022·Granted Nov 5, 2024·0 cites·19 claims
- 3663US12292242B2Surface texture enhanced glass-ceramic matrix composite heat exchangerHAMILTON SUNDSTRAND CORP·Filed 2022·Granted May 6, 2025·0 cites·9 claims
- 3762US12140050B2Recuperated engine with supercritical CO2 bottoming cycleRAYTHEON TECH CORP·Filed 2023·Granted Nov 12, 2024·0 cites·11 claims
- 3860US11591916B2Radial turbine rotor with complex cooling channels and method of making sameHAMILTON SUNDSTRAND CORP·Filed 2021·Granted Feb 28, 2023·0 cites·20 claims
- 3960US2025189237A1Phase change material heat exchangerHAMILTON SUNDSTRAND CORP·Filed 2023·Application pending·0 cites
- 4058US12302541B2Stable pumped two-phase coolingHAMILTON SUNDSTRAND CORP·Filed 2022·Granted May 13, 2025·0 cites·20 claims
- 4158US10640332B2Elevator linear propulsion system with cooling deviceOTIS ELEVATOR CO·Filed 2016·Granted May 5, 2020·0 cites·19 claims
- 4258US2025189189A1Vapor compression cycle with direct pumped two-phase coolingHAMILTON SUNDSTRAND CORP·Filed 2023·Application pending·0 cites
- 4357US12007180B2Varying topology heat sinksHAMILTON SUNDSTRAND CORP·Filed 2022·Granted Jun 11, 2024·0 cites·20 claims
- 4456US2025334354A1Contoured inlet manifold for subfreezing heat exchangerHAMILTON SUNDSTRAND CORP·Filed 2024·Application pending·0 cites
- 4555US10392968B2Turbine casing cooling structureUNITED TECHNOLOGIES CORP·Filed 2017·Granted Aug 27, 2019·0 cites·20 claims
- 4653US2017268805A1Field-active heat pumping using liquid materialsUNITED TECHNOLOGIES CORP·Filed 2014·Application pending·0 cites
- 4752US12313350B2Varying topology heat sinksHAMILTON SUNDSTRAND CORP·Filed 2022·Granted May 27, 2025·0 cites·20 claims
- 4852US10428660B2Hybrid airfoil coolingUNITED TECHNOLOGIES CORP·Filed 2017·Granted Oct 1, 2019·0 cites·16 claims
- 4952US2023083470A1Cryogenic fuel cooled ecs precoolerHAMILTON SUNDSTRAND CORP·Filed 2021·Application pending·0 cites
- 5051US11924997B2Textile weave redundant loop cold plate designROCKWELL COLLINS INC·Filed 2021·Granted Mar 5, 2024·0 cites·13 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →