Heat exchanger and air conditioner having the same
US-2019376696-A1 · Dec 12, 2019 · US
the means being both outside and inside the tubular element
the means being both outside and inside the tubular element · 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 | F28F1/42 |
| Official title | the means being both outside and inside the tubular element |
| Display label | the means being both outside and inside the tubular element |
| Total patents | 111 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 8 |
| 2017 | 16 |
| 2018 | 12 |
| 2019 | 11 |
| 2020 | 9 |
| 2021 | 9 |
| 2022 | 10 |
| 2023 | 4 |
| 2024 | 9 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Furnace for a rooftop unit
US-10502454-B2 · Dec 10, 2019 · US
Heat transfer apparatuses for oil and gas applications
US-2019368821-A1 · Dec 5, 2019 · US
Heat transfer device
US-10458720-B2 · Oct 29, 2019 · US
Asymmetric application of cooling features for a cast plate heat exchanger
US-2019293367-A1 · Sep 26, 2019 · US
3D printed heat exchanger
US-10406601-B2 · Sep 10, 2019 · US
Heat exchangers for low temperature carbon dioxide separation from natural gas
US-10281209-B2 · May 7, 2019 · US
Transfer pipe for furnace
US-10274193-B2 · Apr 30, 2019 · US
Flat tube and heat exchanger having a flat tube of said type
US-10267572-B2 · Apr 23, 2019 · US
Heat exchanger having a coaxial or concentric tube construction
US-10221768-B2 · Mar 5, 2019 · US
Manufacturing a heat exchanger using a material buildup process
US-2018372416-A1 · Dec 27, 2018 · US
3d printed heat exchanger
US-2018345353-A1 · Dec 6, 2018 · US
Heat sink having thermal distortion compensation
US-10101097-B2 · Oct 16, 2018 · US
Heat exchanger
US-2018231319-A1 · Aug 16, 2018 · US
Heat exchanger tube and methods for producing a heat exchanger tube
US-10024607-B2 · Jul 17, 2018 · US
Heat transfer device
US-2018172360-A1 · Jun 21, 2018 · US
Coolant penetrating cold-end pressure vessel
US-10001079-B2 · Jun 19, 2018 · US
Fin-tube type heat exchanger
US-9989316-B2 · Jun 5, 2018 · US
Heat exchangers for low temperature carbon dioxide separation from natural gas
US-2018106535-A1 · Apr 19, 2018 · US
Waste heat exchanger
US-9915184-B2 · Mar 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F1/42?
- CPC F28F1/42 is the Cooperative Patent Classification code for “the means being both outside and inside the tubular element.”
- How many patents are filed under CPC F28F1/42 (the means being both outside and inside the tubular element)?
- Our database includes 111 publications tagged with this CPC code.
- Is patent activity under CPC F28F1/42 growing?
- Publication counts under this code: 9 in 2024 vs 9 in 2025 (latest complete years).