Hydraulic feed device and hydraulic system
US-9841020-B2 · Dec 12, 2017 · US
Sensor, e.g. electronic sensor for control or monitoring
Sensor, e.g. electronic sensor for control or monitoring · 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 | F04C2240/81 |
| Official title | Sensor, e.g. electronic sensor for control or monitoring |
| Display label | Sensor, e.g. electronic sensor for control or monitoring |
| Total patents | 347 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 32 |
| 2017 | 28 |
| 2018 | 34 |
| 2019 | 29 |
| 2020 | 41 |
| 2021 | 41 |
| 2022 | 34 |
| 2023 | 33 |
| 2024 | 29 |
| 2025 | 26 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Scroll vacuum pump and method of maintenance including replacing a tip seal of a scroll vacuum pump
US-9822780-B2 · Nov 21, 2017 · US
Crankcase heater systems and methods for variable speed compressors
US-9810218-B2 · Nov 7, 2017 · US
Variable-displacement lubricant vane pump
US-9752577-B2 · Sep 5, 2017 · US
Oil free screw compressor
US-9752582-B2 · Sep 5, 2017 · US
Screw Compressor
US-2017211574-A1 · Jul 27, 2017 · US
Temperature control for compressor
US-9702358-B2 · Jul 11, 2017 · US
Compressor and control method thereof
US-9695820-B2 · Jul 4, 2017 · US
System and method for controlling a fluid transport system
US-2017175731-A1 · Jun 22, 2017 · US
Electric pump
US-2017082104-A1 · Mar 23, 2017 · US
Variable Speed Compressor Protection System And Method
US-2017051740-A1 · Feb 23, 2017 · US
Compressor
US-9568000-B2 · Feb 14, 2017 · US
Filling machine and method for filling a pasty mass
US-9560856-B2 · Feb 7, 2017 · US
Electric compressor and method for controlling same
US-2016370038-A1 · Dec 22, 2016 · US
Screw Machine And Method For Operating The Same
US-2016369801-A1 · Dec 22, 2016 · US
Oil-Cooled Gas Compressor
US-2016356289-A1 · Dec 8, 2016 · US
Downhole test signals for identification of operational drilling parameters
US-2016348493-A1 · Dec 1, 2016 · US
Compressor system including a flow and temperature control device
US-9500191-B2 · Nov 22, 2016 · US
Variable speed compressor protection system and method
US-9494158-B2 · Nov 15, 2016 · US
Fluid Energy Machine
US-2016327044-A1 · Nov 10, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C2240/81?
- CPC F04C2240/81 is the Cooperative Patent Classification code for “Sensor, e.g. electronic sensor for control or monitoring.”
- How many patents are filed under CPC F04C2240/81 (Sensor, e.g. electronic sensor for control or monitoring)?
- Our database includes 347 publications tagged with this CPC code.
- Is patent activity under CPC F04C2240/81 growing?
- Publication counts under this code: 29 in 2024 vs 26 in 2025 (latest complete years).