Outdoor unit and air-conditioning apparatus
US-2022128279-A1 · Apr 28, 2022 · US
Improving heat transfers
Improving heat transfers · 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 | F25B2500/09 |
| Official title | Improving heat transfers |
| Display label | Improving heat transfers |
| Total patents | 118 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 3 |
| 2017 | 9 |
| 2018 | 9 |
| 2019 | 10 |
| 2020 | 12 |
| 2021 | 9 |
| 2022 | 14 |
| 2023 | 13 |
| 2024 | 14 |
| 2025 | 16 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air Conditioning Device
US-2021341193-A1 · Nov 4, 2021 · US
Air-conditioning apparatus and method of using air-conditioning apparatus
US-2021310672-A1 · Oct 7, 2021 · US
Evaporator coil insert
US-2021222924-A1 · Jul 22, 2021 · US
Evaporator coil insert
US-11009271-B2 · May 18, 2021 · US
Swirl generator
US-2021138358-A1 · May 13, 2021 · US
Working fluid distribution systems
US-10982870-B2 · Apr 20, 2021 · US
Air-conditioning apparatus
US-10976085-B2 · Apr 13, 2021 · US
Heat exchanger, air conditioner, and refrigerating unit
US-2021080158-A1 · Mar 18, 2021 · US
Refrigeration cycle device
US-10921034-B2 · Feb 16, 2021 · US
Simple low-cost retrofit device and method to replace a variable air flow electronically commutated motor with a permanent split capacitor motor capable of operating at multiple speed settings
US-10852044-B1 · Dec 1, 2020 · US
Ice making system
US-2020348058-A1 · Nov 5, 2020 · US
Return air recycling system for an hvac system
US-2020318873-A1 · Oct 8, 2020 · US
Method for cooling off the compressed gas of a compressor installation and compressor installation in which this method is applied
US-10704426-B2 · Jul 7, 2020 · US
Temperature control apparatus and heat exchanging unit thereof
US-2020208921-A1 · Jul 2, 2020 · US
Cooling systems and related method
US-2020208899-A1 · Jul 2, 2020 · US
Heat exchanger and heat exchange unit including the same
US-2020200477-A1 · Jun 25, 2020 · US
Device and Method for Increasing the Heat Yield of a Heat Source
US-2020149788-A1 · May 14, 2020 · US
Evaporator coil insert
US-2020132347-A1 · Apr 30, 2020 · US
Working fluid distribution systems
US-2020072483-A1 · Mar 5, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25B2500/09?
- CPC F25B2500/09 is the Cooperative Patent Classification code for “Improving heat transfers.”
- How many patents are filed under CPC F25B2500/09 (Improving heat transfers)?
- Our database includes 118 publications tagged with this CPC code.
- Is patent activity under CPC F25B2500/09 growing?
- Publication counts under this code: 14 in 2024 vs 16 in 2025 (latest complete years).