Active management of refrigerant charge between condenser loops
US-2024044559-A1 · Feb 8, 2024 · US
Mechanical Engineering
Mechanical Engineering · 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 | F25B2500/24 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 187 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 8 |
| 2017 | 14 |
| 2018 | 21 |
| 2019 | 17 |
| 2020 | 20 |
| 2021 | 14 |
| 2022 | 20 |
| 2023 | 20 |
| 2024 | 19 |
| 2025 | 25 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for estimating refrigerant charge for hvacr systems
US-2019362036-A1 · Nov 28, 2019 · US
Manifold sightglass for charging microchannel system
US-10473373-B2 · Nov 12, 2019 · US
Automatic controls method for adding the optimal amount of refrigerant to a direct expansion cooling system
US-2019323749-A1 · Oct 24, 2019 · US
Refrigeration cycle device
US-10451327-B2 · Oct 22, 2019 · US
Air-conditioning apparatus with operability based on flammable refrigerant concentration information in outdoor unit
US-10422548-B2 · Sep 24, 2019 · US
Refrigerant charge management systems and methods
US-2019277548-A1 · Sep 12, 2019 · US
Active refrigerant charge compensation for refrigeration and air conditioning systems
US-10345021-B2 · Jul 9, 2019 · US
Redistributing refrigerant between an evaporator and a condenser of a vapor compression system
US-2019203999-A1 · Jul 4, 2019 · US
Refrigeration device
US-2019203995-A1 · Jul 4, 2019 · US
Refrigerant charge detection for ice machines
US-10180272-B2 · Jan 15, 2019 · US
Method for Solving Charge Imbalance in Existing Split Heat Pump
US-2018372354-A1 · Dec 27, 2018 · US
Refrigeration apparatus
US-10161655-B2 · Dec 25, 2018 · US
System and Method for Checking and Calibrating Scale for Measuring Fluid in Refrigerant Recovery System
US-2018363963-A1 · Dec 20, 2018 · US
Heat-Pump System With Refrigerant Charge Diagnostics
US-2018363926-A1 · Dec 20, 2018 · US
Refrigeration cycle apparatus
US-10145595-B2 · Dec 4, 2018 · US
Air conditioner
US-2018340714-A1 · Nov 29, 2018 · US
Heat pump system with refrigerant charge diagnostics
US-10060636-B2 · Aug 28, 2018 · US
Refrigerant charge detection for ice machines
US-2018238599-A1 · Aug 23, 2018 · US
Refrigeration cycle device
US-2018149396-A1 · May 31, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25B2500/24?
- CPC F25B2500/24 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F25B2500/24 (Mechanical Engineering)?
- Our database includes 187 publications tagged with this CPC code.
- Is patent activity under CPC F25B2500/24 growing?
- Publication counts under this code: 19 in 2024 vs 25 in 2025 (latest complete years).