Voltage optimization technique for a permanent magnet motor used in an electric submersible pump
US-12341398-B2 · Jun 24, 2025 · US
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Controlled or regulated
Controlled or regulated · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04C2270/015 |
| Official title | Controlled or regulated |
| Display label | Controlled or regulated |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2023 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotary compressor and refrigeration cycle apparatus
US-11821664-B2 · Nov 21, 2023 · US
Voltage optimization technique for a permanent magnet motor used in an electric submersible pump
US-2023361645-A1 · Nov 9, 2023 · US
Voltage optimization technique for a permanent magnet motor used in an electric submersible pump
US-11750057-B2 · Sep 5, 2023 · US
Capacity control for chillers having screw compressors
US-11035600-B2 · Jun 15, 2021 · US
Rotary compressor and refrigeration cycle apparatus
US-2021018231-A1 · Jan 21, 2021 · US
Pump protection method and system
US-10815987-B2 · Oct 27, 2020 · US
Voltage optimization technique for a permanent magnet motor used in an electric submersible pump
US-2020321824-A1 · Oct 8, 2020 · US
Compressor control for increased efficiency
US-10746176-B2 · Aug 18, 2020 · US
Load/unload control method for compressor system
US-10451052-B2 · Oct 22, 2019 · US
Capacity control for chillers having screw compressors
US-2019249666-A1 · Aug 15, 2019 · US
Compressor control for increased efficiency
US-2018356139-A1 · Dec 13, 2018 · US
Pump Protection Method and System
US-2018313349-A1 · Nov 1, 2018 · US
Load/unload control method for compressor system
US-2017218965-A1 · Aug 3, 2017 · US