Automotive variable mechanical lubricant pump
US-2020400142-A1 · Dec 24, 2020 · US
Pressure
Pressure · 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 | F04C2270/18 |
| Official title | Pressure |
| Display label | Pressure |
| Total patents | 112 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 10 |
| 2018 | 9 |
| 2019 | 13 |
| 2020 | 18 |
| 2021 | 12 |
| 2022 | 7 |
| 2023 | 12 |
| 2024 | 13 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for operating a rolling piston compressor
US-10823172-B2 · Nov 3, 2020 · US
Vane Pump
US-2020340473-A1 · Oct 29, 2020 · US
Method for regulating the rotational speed of a compressor as a function of the available gas flow of a source and regulation thereby applied
US-10815997-B2 · Oct 27, 2020 · US
Method and device for controlling the oil temperature of an oil-injected compressor installation or vacuum pump using a flow distributor
US-10808700-B2 · Oct 20, 2020 · US
Compressor floodback protection system
US-10801762-B2 · Oct 13, 2020 · US
Control system for oil supply mechanism
US-10738666-B2 · Aug 11, 2020 · US
Compressor Floodback Protection System
US-2020166256-A1 · May 28, 2020 · US
Relief device of oil circuit of engine
US-10641143-B2 · May 5, 2020 · US
Control system for oil supply mechanism
US-2020131956-A1 · Apr 30, 2020 · US
Pressure sensor device and electric pump
US-2020116156-A1 · Apr 16, 2020 · US
Refrigeration cycle device with motor speed estimator
US-10590934-B2 · Mar 17, 2020 · US
Controller unit for controlling the speed of a motor driving an oil injected compressor and method of controlling said speed
US-2020072220-A1 · Mar 5, 2020 · US
Compressor and refrigeration cycle device
US-2020072212-A1 · Mar 5, 2020 · US
Fault diagnosis device for fluid feed system and fault diagnosis method for fluid feed system
US-2020064222-A1 · Feb 27, 2020 · US
Pump ripple pressure monitoring for incompressible fluid systems
US-2020040889-A1 · Feb 6, 2020 · US
Oil pump
US-2020003209-A1 · Jan 2, 2020 · US
Oil pump
US-2020003210-A1 · Jan 2, 2020 · US
Screw Compressor for a Utility Vehicle
US-2019309745-A1 · Oct 10, 2019 · US
Method for operating a gear pump, and gear pump
US-10436082-B2 · Oct 8, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C2270/18?
- CPC F04C2270/18 is the Cooperative Patent Classification code for “Pressure.”
- How many patents are filed under CPC F04C2270/18 (Pressure)?
- Our database includes 112 publications tagged with this CPC code.
- Is patent activity under CPC F04C2270/18 growing?
- Publication counts under this code: 13 in 2024 vs 7 in 2025 (latest complete years).