Assignee
MAINSPRING ENERGY INC
US·40 granted patents·9 pending applications·62 citations·filing 2019–2025
Top patents by PatentIndex Score
49 records- 0198US11339735B2Control of piston trajectory in a linear generatorMAINSPRING ENERGY INC·Filed 2021·Granted May 24, 2022·4 cites·20 claims
- 0297US11767915B2Piston sealing ring assembly having a gap cover elementMAINSPRING ENERGY INC·Filed 2021·Granted Sep 26, 2023·4 cites·18 claims
- 0397US11053876B2Control of piston trajectory in a linear generatorMAINSPRING ENERGY INC·Filed 2020·Granted Jul 6, 2021·5 cites·20 claims
- 0496US11739705B2Control of piston trajectory in a linear generatorMAINSPRING ENERGY INC·Filed 2022·Granted Aug 29, 2023·2 cites·23 claims
- 0596US11578646B2Energy storage and conversion in linear generatorsMAINSPRING ENERGY INC·Filed 2022·Granted Feb 14, 2023·2 cites·30 claims
- 0695US12283911B2Auto-braking for an electromagnetic machineMAINSPRING ENERGY INC·Filed 2023·Granted Apr 22, 2025·2 cites·16 claims
- 0795US11616428B2Linear electromagnetic machine systemMAINSPRING ENERGY INC·Filed 2021·Granted Mar 28, 2023·6 cites·16 claims
- 0895US11211885B2Auto-braking for an electromagnetic machineMAINSPRING ENERGY INC·Filed 2020·Granted Dec 28, 2021·4 cites·20 claims
- 0994US11652432B2Auto-braking for an electromagnetic machineMAINSPRING ENERGY INC·Filed 2021·Granted May 16, 2023·2 cites·30 claims
- 1094US11404937B2Integrated linear generator systemMAINSPRING ENERGY INC·Filed 2019·Granted Aug 2, 2022·11 cites·23 claims
- 1194US11346445B2Piston sealing ring assembliesMAINSPRING ENERGY INC·Filed 2019·Granted May 31, 2022·6 cites·20 claims
- 1294US11193588B2Reinforced sealing ringsMAINSPRING ENERGY INC·Filed 2020·Granted Dec 7, 2021·4 cites·20 claims
- 1393US12188457B2Sealing ring assemblies configured for pressure lockingMAINSPRING ENERGY INC·Filed 2022·Granted Jan 7, 2025·1 cites·22 claims
- 1493US11525391B2High-efficiency linear generatorMAINSPRING ENERGY INC·Filed 2020·Granted Dec 13, 2022·2 cites·20 claims
- 1592US2026066758A1Linear electromagnetic machine systemMAINSPRING ENERGY INC·Filed 2025·Application pending·0 cites
- 1691US12421890B2High-efficiency linear generatorMAINSPRING ENERGY INC·Filed 2024·Granted Sep 23, 2025·0 cites·22 claims
- 1791US12078250B2Piston sealing ring assembliesMAINSPRING ENERGY INC·Filed 2022·Granted Sep 3, 2024·1 cites·31 claims
- 1889US11530691B2Sealing ring assemblies configured for pressure lockingMAINSPRING ENERGY INC·Filed 2019·Granted Dec 20, 2022·3 cites·20 claims
- 1987US12560235B2Piston sealing ring assembly having a gap cover elementMAINSPRING ENERGY INC·Filed 2024·Granted Feb 24, 2026·0 cites·20 claims
- 2087US12556063B2Integrated linear generator systemMAINSPRING ENERGY INC·Filed 2024·Granted Feb 17, 2026·0 cites·12 claims
- 2187US2025250970A1Sealing ring assemblies configured for pressure lockingMAINSPRING ENERGY INC·Filed 2024·Application pending·0 cites
- 2286US12170501B2Core synchronization for linear generatorsMAINSPRING ENERGY INC·Filed 2021·Granted Dec 17, 2024·2 cites·20 claims
- 2386US2025060035A1Piston sealing ring assembliesMAINSPRING ENERGY INC·Filed 2024·Application pending·0 cites
- 2485US12473855B2Energy storage and conversion in linear generatorsMAINSPRING ENERGY INC·Filed 2023·Granted Nov 18, 2025·0 cites·20 claims
- 2585US12209548B2Control of piston trajectory in a linear generatorMAINSPRING ENERGY INC·Filed 2023·Granted Jan 28, 2025·0 cites·20 claims
- 2684US12078249B2Piston sealing ring assembly having a gap cover elementMAINSPRING ENERGY INC·Filed 2023·Granted Sep 3, 2024·0 cites·24 claims
- 2784US11867116B2Energy storage and conversion in linear generatorsMAINSPRING ENERGY INC·Filed 2023·Granted Jan 9, 2024·0 cites·20 claims
- 2883US12027956B2Integrated linear generator systemMAINSPRING ENERGY INC·Filed 2023·Granted Jul 2, 2024·0 cites·26 claims
- 2983US12000331B2High-efficiency linear generatorMAINSPRING ENERGY INC·Filed 2022·Granted Jun 4, 2024·0 cites·24 claims
- 3083US11946435B2Open-faced piston assemblyMAINSPRING ENERGY INC·Filed 2022·Granted Apr 2, 2024·0 cites·25 claims
- 3182US12445029B2Linear electromagnetic machine with a stator having stator teeth arranged to provide an anti-clocking forceMAINSPRING ENERGY INC·Filed 2023·Granted Oct 14, 2025·0 cites·21 claims
- 3279US12587118B2Core synchronization for linear generatorsMAINSPRING ENERGY INC·Filed 2024·Granted Mar 24, 2026·0 cites·20 claims
- 3379US11750065B2Integrated linear generator systemMAINSPRING ENERGY INC·Filed 2022·Granted Sep 5, 2023·0 cites·18 claims
- 3476US11236827B2Piston-integrated gap coverMAINSPRING ENERGY INC·Filed 2019·Granted Feb 1, 2022·1 cites·20 claims
- 3574US12255514B2Systems and methods for flexure-based bearing mountingMAINSPRING ENERGY INC·Filed 2022·Granted Mar 18, 2025·0 cites·15 claims
- 3674US2025167632A1Integrated linear generator systemMAINSPRING ENERGY INC·Filed 2025·Application pending·0 cites
- 3773US11746904B2Reinforced sealing ringsMAINSPRING ENERGY INC·Filed 2021·Granted Sep 5, 2023·0 cites·31 claims
- 3873US11313318B2Open-faced piston assemblyMAINSPRING ENERGY INC·Filed 2020·Granted Apr 26, 2022·0 cites·19 claims
- 3972US11619303B2Piston seal with solid lubricant applicatorMAINSPRING ENERGY INC·Filed 2021·Granted Apr 4, 2023·0 cites·20 claims
- 4072US11352947B2Energy storage and conversion in linear generatorsMAINSPRING ENERGY INC·Filed 2020·Granted Jun 7, 2022·0 cites·20 claims
- 4172US2026078822A1Sealing ring assembly with spring elementMAINSPRING ENERGY INC·Filed 2025·Application pending·0 cites
- 4270US2025260288A1Systems and methods for flexure-based bearing mountingMAINSPRING ENERGY INC·Filed 2025·Application pending·0 cites
- 4369USRE49259EMethods and systems for managing a clearance gap in a piston engineMAINSPRING ENERGY INC·Filed 2020·Granted Oct 25, 2022·0 cites·40 claims
- 4463US10916991B2DC-DC converter in a non-steady systemMAINSPRING ENERGY INC·Filed 2020·Granted Feb 9, 2021·0 cites·20 claims
- 4563US2025279696A1Linear generator system having a polygonal layoutMAINSPRING ENERGY INC·Filed 2025·Application pending·0 cites
- 4662US11873906B2Springs for piston ring biasingMAINSPRING ENERGY INC·Filed 2021·Granted Jan 16, 2024·0 cites·20 claims
- 4761US2024297553A1High-power core systemMAINSPRING ENERGY INC·Filed 2024·Application pending·0 cites
- 4856US11976730B2Manifold interface sealMAINSPRING ENERGY INC·Filed 2021·Granted May 7, 2024·0 cites·20 claims
- 4939US2025092951A1Anti-friction sealing ringsMAINSPRING ENERGY INC·Filed 2022·Application pending·0 cites
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