Motor-driven compressor
US-10125775-B2 · Nov 13, 2018 · US
with inverter for speed control
with inverter for speed control · 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 | F04C2240/403 |
| Official title | with inverter for speed control |
| Display label | with inverter for speed control |
| Total patents | 209 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 12 |
| 2017 | 20 |
| 2018 | 15 |
| 2019 | 19 |
| 2020 | 29 |
| 2021 | 18 |
| 2022 | 13 |
| 2023 | 11 |
| 2024 | 20 |
| 2025 | 35 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas Compressor
US-2018291901-A1 · Oct 11, 2018 · US
Motor-driven compressor
US-10087935-B2 · Oct 2, 2018 · US
Variable speed compressor protection system and method
US-10077774-B2 · Sep 18, 2018 · US
Motor and electric oil pump
US-2018254685-A1 · Sep 6, 2018 · US
Electric compressor controller and refrigeration cycle device
US-2018202442-A1 · Jul 19, 2018 · US
Electric compressor
US-2018191220-A1 · Jul 5, 2018 · US
Simple inverter-control-type refrigerator, inverter control unit for refrigerator, and inverter compressor using same
US-10001311-B2 · Jun 19, 2018 · US
Control method and control system for screw pump
US-9976555-B2 · May 22, 2018 · US
Motor driven compressor
US-9970428-B2 · May 15, 2018 · US
Fluid machine for vehicle
US-2018087511-A1 · Mar 29, 2018 · US
Motor-driven compressor
US-9926931-B2 · Mar 27, 2018 · US
Method of operating a pumping system
US-9903378-B2 · Feb 27, 2018 · US
Electric compressor
US-2018030972-A1 · Feb 1, 2018 · US
Electric compressor
US-2018003179-A1 · Jan 4, 2018 · US
Screw compressor drive control
US-2017343261-A1 · Nov 30, 2017 · US
Variable frequency drive apparatuses, systems, and methods and controls for same
US-9816742-B2 · Nov 14, 2017 · US
Motor-driven compressor including a coupling structure having a protrusion and insertion portion
US-9810219-B2 · Nov 7, 2017 · US
Gasket and motor-driven compressor
US-9784261-B2 · Oct 10, 2017 · US
Vacuum-Processing Device and Control Method Therefor, and Vacuum Soldering Device and Control Method Therefor
US-2017282270-A1 · Oct 5, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C2240/403?
- CPC F04C2240/403 is the Cooperative Patent Classification code for “with inverter for speed control.”
- How many patents are filed under CPC F04C2240/403 (with inverter for speed control)?
- Our database includes 209 publications tagged with this CPC code.
- Is patent activity under CPC F04C2240/403 growing?
- Publication counts under this code: 20 in 2024 vs 35 in 2025 (latest complete years).