Inventor · disambiguated record
Chockkalingam Karuppaiah
Also filed as: KARUPPAIAH CHOCKKALINGAM
44 granted patents·34 pending applications·189 citations·filing 2000–2025
97Inventor score
Files withOHMIUM INTERNATIONAL INC42BLOOM ENERGY CORP24PLUG POWER INC4KESHAVARZ MAJID2GOTTMANN MATTHIAS1
Top patents by PatentIndex Score
78 records- 0196US11603599B2Systems and methods of ammonia synthesisOHMIUM INTERNATIONAL INC·Filed 2020·Granted Mar 14, 2023·3 cites·18 claims
- 0296US11492711B2Electrochemical devices, modules, and systems for hydrogen generation and methods of operating thereofOHMIUM INTERNATIONAL INC·Filed 2020·Granted Nov 8, 2022·8 cites·10 claims
- 0396US10361442B2SOFC system and method which maintain a reducing anode environmentBLOOM ENERGY CORP·Filed 2016·Granted Jul 23, 2019·10 cites·10 claims
- 0495US11767599B2Electrochemical devices, modules, and systems for hydrogen generation and methods of operating thereofOHMIUM INTERNATIONAL INC·Filed 2022·Granted Sep 26, 2023·4 cites·20 claims
- 0595US11322767B2Solid oxide fuel cell system with hydrogen pumping cell with carbon monoxide tolerant anodes and integrated shift reactorBLOOM ENERGY CORP·Filed 2020·Granted May 3, 2022·3 cites·19 claims
- 0695US10186724B2Carbon dioxide separator, fuel cell system including same, and method of operating the fuel cell systemBLOOM ENERGY CORP·Filed 2016·Granted Jan 22, 2019·7 cites·11 claims
- 0794US11761097B2Systems and methods of water treatment for hydrogen productionOHMIUM INTERNATIONAL INC·Filed 2020·Granted Sep 19, 2023·2 cites·15 claims
- 0894US10809308B2System and method for impedance testing DC power sourcesBLOOM ENERGY CORP·Filed 2018·Granted Oct 20, 2020·6 cites·20 claims
- 0994US8962219B2Fuel cell interconnects and methods of fabricationBLOOM ENERGY CORP·Filed 2012·Granted Feb 24, 2015·10 cites·29 claims
- 1094US8551299B2Methods of producing hydrochloric acid from hydrogen gas and chlorine gasKESHAVARZ MAJID·Filed 2010·Granted Oct 8, 2013·20 cites·14 claims
- 1193US12359326B1Hybrid electrocatalyst layers for membrane-based electrochemical devices and processes for making the sameOHMIUM INTERNATIONAL INC·Filed 2024·Granted Jul 15, 2025·0 cites·20 claims
- 1293US9570769B2Fuel cell interconnectBLOOM ENERGY CORP·Filed 2015·Granted Feb 14, 2017·4 cites·20 claims
- 1392US12338539B1Hybrid electrocatalyst layers for membrane-based electrochemical devices and processes for making the sameOHMIUM INTERNATIONAL INC·Filed 2024·Granted Jun 24, 2025·0 cites·10 claims
- 1492US11767603B2Modular systems for hydrogen generation and methods of operating thereofOHMIUM INTERNATIONAL INC·Filed 2020·Granted Sep 26, 2023·2 cites·18 claims
- 1592US8877365B2Redox flow cell rebalancingKESHAVARZ MAJID·Filed 2010·Granted Nov 4, 2014·23 cites·66 claims
- 1691US12394991B2Systems and circuits for connecting components of a hydrogen plant to a power sourceOHMIUM INTERNATIONAL INC·Filed 2023·Granted Aug 19, 2025·2 cites·16 claims
- 1791US12308484B2Methods of manufacturing a gas diffusion layer and an electrochemical cell incorporating the sameOHMIUM INTERNATIONAL INC·Filed 2021·Granted May 20, 2025·1 cites·11 claims
- 1891US9190685B2SOFC system with selective CO2 removalMCELROY JAMES·Filed 2011·Granted Nov 17, 2015·7 cites·9 claims
- 1989US12385145B2Systems and methods for hydrogen recoveryOHMIUM INTERNATIONAL INC·Filed 2022·Granted Aug 12, 2025·1 cites·13 claims
- 2089US12091518B2Composite ion exchange membranes and methods of making the sameOHMIUM INTERNATIONAL INC·Filed 2023·Granted Sep 17, 2024·3 cites·18 claims
- 2189US10173178B1Carbon dioxide separator membrane structure, method of manufacturing same, and carbon dioxide separator including sameBLOOM ENERGY CORP·Filed 2016·Granted Jan 8, 2019·13 cites·13 claims
- 2287US12203179B2Systems and methods of water treatment for hydrogen productionOHMIUM INTERNATIONAL INC·Filed 2023·Granted Jan 21, 2025·0 cites·5 claims
- 2387US9993874B2Composition and processing of metallic interconnects for SOFC stacksSTACKPOLE INT·Filed 2015·Granted Jun 12, 2018·6 cites·17 claims
- 2486US12212025B2Aircraft electrical power supply system and method of supplying electrical power in an aircraftOHMIUM INTERNATIONAL INC·Filed 2021·Granted Jan 28, 2025·2 cites·25 claims
- 2586US12043874B2System and method for reducing ore using hydrogen as a reducing agentOHMIUM INTERNATIONAL INC·Filed 2021·Granted Jul 23, 2024·1 cites·12 claims
- 2685US10989760B2System and method for impedance testing DC power sourcesBLOOM ENERGY CORP·Filed 2018·Granted Apr 27, 2021·5 cites·13 claims
- 2785US7514166B2Reduction of SOFC anodes to extend stack lifetimeBLOOM ENERGY CORP·Filed 2005·Granted Apr 7, 2009·6 cites·34 claims
- 2884US12470062B2Frequency droop to coordinate hydrogen productionOHMIUM INTERNATIONAL INC·Filed 2023·Granted Nov 11, 2025·1 cites·19 claims
- 2984US11456474B2Integrated power generation, carbon dioxide separation and downstream processing system and methodBLOOM ENERGY CORP·Filed 2020·Granted Sep 27, 2022·1 cites·18 claims
- 3082US9196909B2Fuel cell interconnect heat treatment methodBLOOM ENERGY CORP·Filed 2012·Granted Nov 24, 2015·2 cites·20 claims
- 3180US11777125B2Solid oxide fuel cell system with hydrogen pumping cell with carbon monoxide tolerant anodes and integrated shift reactorBLOOM ENERGY CORP·Filed 2022·Granted Oct 3, 2023·0 cites·15 claims
- 3279US12341229B2Solid oxide fuel cell system with hydrogen pumping cell with carbon monoxide tolerant anodes and integrated shift reactorBLOOM ENERGY CORP·Filed 2023·Granted Jun 24, 2025·0 cites·20 claims
- 3379US2023272543A1Modular systems for hydrogen generation and methods of operating thereofOHMIUM INTERNATIONAL INC·Filed 2023·Application pending·0 cites
- 3479US2025343422A1Systems and circuits for connecting components of a hydrogen plant to a power sourceOHMIUM INTERNATIONAL INC·Filed 2025·Application pending·0 cites
- 3578US12152117B2Composite ion exchange membranes and methods of making the sameOHMIUM INTERNATIONAL INC·Filed 2023·Granted Nov 26, 2024·0 cites·12 claims
- 3676US6821661B2Hydrophilic anode gas diffusion layerPLUG POWER INC·Filed 2002·Granted Nov 23, 2004·16 cites·36 claims
- 3776US2025075347A1Bundle assemblies for use in electrochemical cell stacks and methods for using the sameOHMIUM INTERNATIONAL INC·Filed 2024·Application pending·0 cites
- 3876US2025084226A1Composite ion exchange membranes and methods of making the sameOHMIUM INTERNATIONAL INC·Filed 2024·Application pending·0 cites
- 3976US2025263844A1Systems and methods for hydrogen recoveryOHMIUM INTERNATIONAL INC·Filed 2025·Application pending·0 cites
- 4075US12440894B2Porous electrolyzer gas diffusion layer and method of making thereofOHMIUM INTERNATIONAL INC·Filed 2021·Granted Oct 14, 2025·0 cites·22 claims
- 4175US8785012B2Fuel cell bypass diode structures and attachment methodsGOTTMANN MATTHIAS·Filed 2012·Granted Jul 22, 2014·4 cites·4 claims
- 4275US6517963B2Carbon monoxide filterPLUG POWER INC·Filed 2000·Granted Feb 11, 2003·13 cites·31 claims
- 4375US2023203686A1Systems and methods of ammonia synthesisOHMIUM INTERNATIONAL INC·Filed 2023·Application pending·0 cites
- 4472US2024271291A1System and methods for water desalination using water electrolyzer waste heatOHMIUM INTERNATIONAL INC·Filed 2024·Application pending·0 cites
- 4571US2023332315A1System and method for controlling production, storage, and/or distribution of hydrogenOHMIUM INTERNATIONAL INC·Filed 2023·Application pending·0 cites
- 4671US2025066194A1Systems and methods for hydrogen plant dryer regenerationOHMIUM INTERNATIONAL INC·Filed 2024·Application pending·0 cites
- 4770US2024336986A1System and method for reducing ore using hydrogen as a reducing agentOHMIUM INTERNATIONAL INC·Filed 2024·Application pending·0 cites
- 4869US2023279564A1Hydrophilic member with cation and anion conducting membranesOHMIUM INTERNATIONAL INC·Filed 2023·Application pending·0 cites
- 4969US2022218007A1Methods and composition to reduce salt in food productsKANTHARUBAN RAGHAVI·Filed 2022·Application pending·0 cites
- 5068US11962041B2Methods for manufacturing fuel cell interconnects using 3D printingBLOOM ENERGY CORP·Filed 2021·Granted Apr 16, 2024·0 cites·18 claims
Showing the top 50 of 78 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →