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 | F25B40/02 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 736 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 38 |
| 2016 | 49 |
| 2017 | 75 |
| 2018 | 69 |
| 2019 | 83 |
| 2020 | 75 |
| 2021 | 61 |
| 2022 | 85 |
| 2023 | 60 |
| 2024 | 75 |
| 2025 | 55 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heating/cooling module
US-2016375745-A1 · Dec 29, 2016 · US
Multi-type air conditioner
US-9513034-B2 · Dec 6, 2016 · US
Ejector
US-2016348948-A1 · Dec 1, 2016 · US
Refrigeration method, and corresponding cold box and cryogenic equipment
US-2016341452-A1 · Nov 24, 2016 · US
Adaptive control of multi-compartment transport refrigeration system
US-2016334142-A1 · Nov 17, 2016 · US
Heat exchanger
US-2016327318-A1 · Nov 10, 2016 · US
Subcooler and air conditioner including the same
US-2016313036-A1 · Oct 27, 2016 · US
Heat exchanger
US-9464850-B2 · Oct 11, 2016 · US
Heat-recoverty-type refrigerating apparatus
US-2016238285-A1 · Aug 18, 2016 · US
Microchannel suction line heat exchanger
US-2016178256-A1 · Jun 23, 2016 · US
Refrigerant level monitor for refrigeration system
US-2016169568-A1 · Jun 16, 2016 · US
Ejector
US-2016169565-A1 · Jun 16, 2016 · US
Ejector
US-9328742-B2 · May 3, 2016 · US
Condenser having a receiver/dehydrator top entrance with communication capable of stabilized charge plateau
US-9328972-B2 · May 3, 2016 · US
Microchannel suction line heat exchanger
US-9303925-B2 · Apr 5, 2016 · US
Vehicle air conditioner
US-2016082810-A1 · Mar 24, 2016 · US
Subcooling system with thermal energy storage
US-2016076821-A1 · Mar 17, 2016 · US
Condenser assembly for refrigerant
US-2016069597-A1 · Mar 10, 2016 · US
Refrigeration cycle device
US-2016010898-A1 · Jan 14, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25B40/02?
- CPC F25B40/02 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F25B40/02 (Mechanical Engineering)?
- Our database includes 736 publications tagged with this CPC code.
- Is patent activity under CPC F25B40/02 growing?
- Publication counts under this code: 75 in 2024 vs 55 in 2025 (latest complete years).