Apparatus and method for controlling a vehicle air compressor to track water content in compressor oil
US-2025305500-A1 · Oct 2, 2025 · US
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 | F04C2270/075 |
| Official title | Controlled or regulated |
| Display label | Controlled or regulated |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 7 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Voltage optimization technique for a permanent magnet motor used in an electric submersible pump
US-12341398-B2 · Jun 24, 2025 · US
Apparatus and method for controlling a vehicle air compressor to track water content in compressor oil
US-12180964-B1 · Dec 31, 2024 · US
Method for controlling the start-up of an oil pump
US-11873808-B2 · Jan 16, 2024 · US
Compressor cylinder switching control method and device, unit and air conditioning system
US-11852132-B2 · Dec 26, 2023 · US
Voltage optimization technique for a permanent magnet motor used in an electric submersible pump
US-2023361645-A1 · Nov 9, 2023 · US
Variable capacity compressor operation mode determination method and device, variable capacity compressor, and air conditioner
US-11808261-B2 · Nov 7, 2023 · US
Voltage optimization technique for a permanent magnet motor used in an electric submersible pump
US-11750057-B2 · Sep 5, 2023 · US
Electric compressor
US-11635067-B2 · Apr 25, 2023 · US
Systems and methods for protecting sealed compressor electrical feedthrough
US-11614091-B2 · Mar 28, 2023 · US
Apparatus for reducing noise of gear pump through uneven pitch-simulated control and method thereof
US-11578718-B2 · Feb 14, 2023 · US
Method for controlling the start-up of an oil pump
US-2022170455-A1 · Jun 2, 2022 · US
Apparatus for Reducing Noise of Gear Pump Through Uneven Pitch-Simulated Control and Method Thereof
US-2022049696-A1 · Feb 17, 2022 · US
Systems and methods for protecting sealed compressor electrical feedthrough
US-2021404479-A1 · Dec 30, 2021 · US
Variable capacity compressor operation mode determination method and device, variable capacity compressor, and air conditioner
US-2021340977-A1 · Nov 4, 2021 · US
Compressor Cylinder Switching Control Method and Device, Unit and Air Conditioning System
US-2021270260-A1 · Sep 2, 2021 · US
Electric compressor
US-2021164459-A1 · Jun 3, 2021 · US
In-vehicle motor-driven compressor and method for controlling in-vehicle motor-driven compressor
US-10989195-B2 · Apr 27, 2021 · US
Electrical device and method having an electrical cord set convertible between different electrical amperage ratings
US-10927826-B2 · Feb 23, 2021 · US
Method for the start-up control of an electric vacuum pump
US-10808690-B2 · Oct 20, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C2270/075?
- CPC F04C2270/075 is the Cooperative Patent Classification code for “Controlled or regulated.”
- How many patents are filed under CPC F04C2270/075 (Controlled or regulated)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC F04C2270/075 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).