Curved cross-flow heat exchanger
US-9851159-B2 · Dec 26, 2017 · 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 | F28F3/022 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 302 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 27 |
| 2017 | 24 |
| 2018 | 31 |
| 2019 | 39 |
| 2020 | 28 |
| 2021 | 33 |
| 2022 | 25 |
| 2023 | 31 |
| 2024 | 27 |
| 2025 | 26 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat transfer device
US-2017363370-A1 · Dec 21, 2017 · US
Heat exchanger with variable density feature arrays
US-2017363375-A1 · Dec 21, 2017 · US
Liquid-cooled-type cooling device and manufacturing method for same
US-9845999-B2 · Dec 19, 2017 · US
Complex pin fin heat exchanger
US-2017356696-A1 · Dec 14, 2017 · US
Article and process for producing an article
US-9796048-B2 · Oct 24, 2017 · US
Compliant pin fin heat sink with base integral pins
US-2017287809-A1 · Oct 5, 2017 · US
Surface roughening apparatus for metal stock and surface roughening method for metal stock
US-9770753-B2 · Sep 26, 2017 · US
Liquid Cooling Apparatus
US-2017272712-A1 · Sep 21, 2017 · US
Low weight tube fin heat sink
US-2017248379-A1 · Aug 31, 2017 · US
Heat exchanger with center manifold and thermal separator
US-2017211888-A1 · Jul 27, 2017 · US
Device for Protecting a High-Pressure Gas Tank of a Motor Vehicle
US-2017167662-A1 · Jun 15, 2017 · US
High-conductivity bonding of metal nanowire arrays
US-2017146302-A1 · May 25, 2017 · US
Heat exchangers for cooling integrated circuits
US-9655287-B1 · May 16, 2017 · US
Reduced temperature energy storage device
US-9653824-B2 · May 16, 2017 · US
Cooler and semiconductor device having cooler
US-9653379-B2 · May 16, 2017 · US
Ram air heat exchanger
US-2017106984-A1 · Apr 20, 2017 · US
Heat transfer device and use thereof
US-2017089647-A1 · Mar 30, 2017 · US
High-conductivity bonding of metal nanowire arrays
US-9601452-B2 · Mar 21, 2017 · US
Protrusion forming device and method for forming protrusion part for heat exchanger
US-2017050233-A1 · Feb 23, 2017 · US
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F3/022?
- CPC F28F3/022 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F28F3/022 (Mechanical Engineering)?
- Our database includes 302 publications tagged with this CPC code.
- Is patent activity under CPC F28F3/022 growing?
- Publication counts under this code: 27 in 2024 vs 26 in 2025 (latest complete years).