Method for controlling a vapour compression system in a flooded state
US-10508850-B2 · Dec 17, 2019 · US
Means for preventing liquid refrigerant entering into the compressor
Means for preventing liquid refrigerant entering into the compressor · 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 | F25B2500/28 |
| Official title | Means for preventing liquid refrigerant entering into the compressor |
| Display label | Means for preventing liquid refrigerant entering into the compressor |
| Total patents | 196 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 10 |
| 2017 | 17 |
| 2018 | 17 |
| 2019 | 23 |
| 2020 | 25 |
| 2021 | 17 |
| 2022 | 15 |
| 2023 | 25 |
| 2024 | 16 |
| 2025 | 17 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compressor with flooded start control
US-10480495-B2 · Nov 19, 2019 · US
Compressor with flooded start control
US-10385840-B2 · Aug 20, 2019 · US
Refrigeration cycle apparatus
US-2019154322-A1 · May 23, 2019 · US
Variable Speed Compressor Protection System And Method
US-2019017508-A1 · Jan 17, 2019 · US
Gas-replenishing and enthalpy-increasing control method, device and apparatus for two-stage compressor
US-2018356136-A1 · Dec 13, 2018 · US
Anti-slugging control method and control apparatus for air-conditioning system, and air-conditioning system
US-2018335237-A1 · Nov 22, 2018 · US
Compressor With Flooded Start Control
US-2018320672-A1 · Nov 8, 2018 · US
Method for controlling a vapour compression system in a flooded state
US-2018320944-A1 · Nov 8, 2018 · US
Cooling device with compressor cabinet heater and a control method
US-10119734-B2 · Nov 6, 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
Liquid reservoir assembly for refrigerating system, refrigerating system having same and freezer
US-2018231285-A1 · Aug 16, 2018 · US
Cooling system with low temperature load
US-9964339-B2 · May 8, 2018 · US
Return air superheat degree test method for multi-split system and multi-split system
US-2018106518-A1 · Apr 19, 2018 · US
Liquid Slugging Detection And Protection
US-2018106520-A1 · Apr 19, 2018 · US
Refrigeration Cycle Device
US-2018100677-A1 · Apr 12, 2018 · US
Air-conditioning apparatus
US-9933193-B2 · Apr 3, 2018 · US
Heat pump
US-2018080690-A1 · Mar 22, 2018 · US
Heat pump
US-2018080694-A1 · Mar 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25B2500/28?
- CPC F25B2500/28 is the Cooperative Patent Classification code for “Means for preventing liquid refrigerant entering into the compressor.”
- How many patents are filed under CPC F25B2500/28 (Means for preventing liquid refrigerant entering into the compressor)?
- Our database includes 196 publications tagged with this CPC code.
- Is patent activity under CPC F25B2500/28 growing?
- Publication counts under this code: 16 in 2024 vs 17 in 2025 (latest complete years).