Compressor having oil-level sensing system
US-10125768-B2 · Nov 13, 2018 · US
Temperature
Temperature · 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 | F04C2270/19 |
| Official title | Temperature |
| Display label | Temperature |
| Total patents | 197 |
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 | 16 |
| 2017 | 18 |
| 2018 | 15 |
| 2019 | 25 |
| 2020 | 18 |
| 2021 | 21 |
| 2022 | 12 |
| 2023 | 18 |
| 2024 | 22 |
| 2025 | 16 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compressor With Flooded Start Control
US-2018320672-A1 · Nov 8, 2018 · US
Variable speed compressor protection system and method
US-10077774-B2 · Sep 18, 2018 · US
Compressor with flooded start control
US-10066617-B2 · Sep 4, 2018 · US
Thermo valve and oil pump
US-2018149050-A1 · May 31, 2018 · US
Positive displacement pump assembly for powertrain systems and hydraulic control system incorporating the same
US-2018135626-A1 · May 17, 2018 · US
Motor-driven compressor with switching element
US-9938976-B2 · Apr 10, 2018 · US
Variable displacement lubricant pump
US-9920757-B2 · Mar 20, 2018 · US
Method of operating a pumping system
US-9903378-B2 · Feb 27, 2018 · US
Oil-flooded screw compressor system and method for modifying the same
US-2018023571-A1 · Jan 25, 2018 · US
Compressor system and lubricant control valve
US-2018017062-A1 · Jan 18, 2018 · US
Method for controlling a gas supply to a vacuum pump
US-2017350397-A1 · Dec 7, 2017 · US
Compressor data module
US-9823632-B2 · Nov 21, 2017 · US
Variable frequency drive apparatuses, systems, and methods and controls for same
US-9816742-B2 · Nov 14, 2017 · US
Motor-driven compressor with switching element
US-9790944-B2 · Oct 17, 2017 · US
Compressor diagnostic and protection system and method
US-2017266769-A1 · Sep 21, 2017 · US
Compressor having a control and diagnostic module
US-9762168-B2 · Sep 12, 2017 · US
Variable-displacement lubricant vane pump
US-9752577-B2 · Sep 5, 2017 · US
Compressor floodback protection system
US-2017241689-A1 · Aug 24, 2017 · US
Variable displacement lubricant pump for an internal combustion engine with a temperature control valve
US-9726173-B2 · Aug 8, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C2270/19?
- CPC F04C2270/19 is the Cooperative Patent Classification code for “Temperature.”
- How many patents are filed under CPC F04C2270/19 (Temperature)?
- Our database includes 197 publications tagged with this CPC code.
- Is patent activity under CPC F04C2270/19 growing?
- Publication counts under this code: 22 in 2024 vs 16 in 2025 (latest complete years).