Assignee
XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
CN·29 granted patents·39 pending applications·26 citations·filing 2014–2025
Top patents by PatentIndex Score
68 records- 0196US12243700B2Short circuit current-resistant and arc-extinguishing DC relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2020·Granted Mar 4, 2025·4 cites·17 claims
- 0294US11670472B2Direct-current relay resistant to short-circuit currentXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2019·Granted Jun 6, 2023·8 cites·22 claims
- 0385US12009172B2High-voltage DC relay with auxiliary contactXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2022·Granted Jun 11, 2024·1 cites·10 claims
- 0483US10854410B2High-voltage direct-current relay and assembly method thereforXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2016·Granted Dec 1, 2020·4 cites·14 claims
- 0582US12027334B2Direct-current relay capable of extinguishing arc and resisting short-circuit currentXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2023·Granted Jul 2, 2024·0 cites·15 claims
- 0682US12027333B2Direct-current relay capable of extinguishing arc and resisting short-circuit currentXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2023·Granted Jul 2, 2024·0 cites·15 claims
- 0782US12027335B2Direct-current relay capable of extinguishing arc and resisting short-circuit currentXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2023·Granted Jul 2, 2024·0 cites·16 claims
- 0882US12020881B2Direct-current relay having a function of extinguishing ARC and resisting short-circuit currentXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2023·Granted Jun 25, 2024·0 cites·14 claims
- 0982US12020880B2Direct-current relay having a function of extinguishing arc and resisting short-circuit currentXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2023·Granted Jun 25, 2024·0 cites·12 claims
- 1080US2025299897A1High-voltage dc relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2025·Application pending·0 cites
- 1180US2025308823A1High-voltage dc relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2025·Application pending·0 cites
- 1278US11501939B2High-voltage DC relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2020·Granted Nov 15, 2022·1 cites·23 claims
- 1378US10068731B2Framework of relay and relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2014·Granted Sep 4, 2018·5 cites·14 claims
- 1478US2026045432A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2025·Application pending·0 cites
- 1577US12368014B2High-voltage DC relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Granted Jul 22, 2025·0 cites·11 claims
- 1677US2025349480A1Connecting structure between lead-out pins of auxiliary stationary contacts and yoke plate of dc relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2025·Application pending·0 cites
- 1773US12002641B2High-voltage DC relay having a movable pieceXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2022·Granted Jun 4, 2024·0 cites·19 claims
- 1871US12488954B2Relay having a pressure relief valve assemblyXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2023·Granted Dec 2, 2025·0 cites·23 claims
- 1971US2025149281A1Dc relay for anti-short circuit current and arc extinctionXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2025·Application pending·0 cites
- 2071US2025149280A1Dc relay for anti-short circuit current and arc extinctionXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2025·Application pending·0 cites
- 2170US12354819B2High-voltage DC relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2021·Granted Jul 8, 2025·0 cites·12 claims
- 2269US11476070B2Magnetic latching relay capable of accurately positioning magnetic circuitXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2021·Granted Oct 18, 2022·0 cites·9 claims
- 2366US12482621B2Connecting structure between lead-out pins of auxiliary stationary contacts and yoke plate of DC relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2021·Granted Nov 25, 2025·0 cites·9 claims
- 2464US12592353B2RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2023·Granted Mar 31, 2026·0 cites·15 claims
- 2564US12424405B2High-voltage DC relay with auxiliary contactXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2021·Granted Sep 23, 2025·0 cites·16 claims
- 2660US2025095939A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 2758US2024347299A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 2857US11031202B2Magnetic latching relay capable of resisting short-circuit currentXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2017·Granted Jun 8, 2021·0 cites·11 claims
- 2957US2024387135A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 3057US2024387132A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 3157US2024395488A1Contact part and relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 3257US2024387137A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 3357US2024387136A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 3457US2024387138A1Fixing frame and magnetic latching relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 3557US2024387131A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 3656US2024347298A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 3756US2024387134A1Contact piece structure and magnetic holding relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 3856US2024387133A1Contact piece structure and magnetic latching relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 3955US2025095936A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 4055US2025095940A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 4155US2025095935A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 4254US2024347297A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 4354US2024347303A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 4453US2026038757A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2023·Application pending·0 cites
- 4553US2024347301A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 4653US2024347302A1RelayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 4753US2024387130A1Magnetic latching relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2024·Application pending·0 cites
- 4853US2025087438A1Magnetic circuit system with enhanced initial electromagnetic attraction and high-voltage dc relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2022·Application pending·0 cites
- 4953US2025379016A1Noise reduction gasket and relayXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2023·Application pending·0 cites
- 5052US9640336B2Magnetic latching relay having asymmetrical solenoid structureXIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD·Filed 2014·Granted May 2, 2017·1 cites·6 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
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