Fin-Assembled Tube
US-2020056847-A1 · Feb 20, 2020 · US
Secondary fins, e.g. projections or recesses on main fins
Secondary fins, e.g. projections or recesses on main fins · 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 | F28F2215/10 |
| Official title | Secondary fins, e.g. projections or recesses on main fins |
| Display label | Secondary fins, e.g. projections or recesses on main fins |
| Total patents | 188 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 11 |
| 2017 | 7 |
| 2018 | 12 |
| 2019 | 20 |
| 2020 | 13 |
| 2021 | 25 |
| 2022 | 28 |
| 2023 | 25 |
| 2024 | 15 |
| 2025 | 21 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus, system, and method for interior fluid flow with optimized fin structures
US-10520263-B2 · Dec 31, 2019 · US
Heat exchanger
US-2019390912-A1 · Dec 26, 2019 · US
Enhanced heat dissipation module, cooling fin struture and stamping method thereof
US-2019390922-A1 · Dec 26, 2019 · US
Heat sink
US-2019383566-A1 · Dec 19, 2019 · US
Heat transfer fin of fin-tube type heat exchanger
US-2019323784-A1 · Oct 24, 2019 · US
Heat augmentation features in a cast heat exchanger
US-2019310030-A1 · Oct 10, 2019 · US
Asymmetric application of cooling features for a cast plate heat exchanger
US-2019293367-A1 · Sep 26, 2019 · US
Heat exchanger and air conditioner
US-2019285321-A1 · Sep 19, 2019 · US
Heat exchanger
US-10386132-B2 · Aug 20, 2019 · US
Heat exchanger
US-2019234690-A1 · Aug 1, 2019 · US
Heat exchanger, boiler, and setting method for heat exchanger
US-2019226774-A1 · Jul 25, 2019 · US
Water-cooling radiator assembly with internal horiziontal partition members and flow disturbing members
US-2019212066-A1 · Jul 11, 2019 · US
Heat exchanger
US-2019195572-A1 · Jun 27, 2019 · US
Plate fin heat exchanger and manufacturing method for heat exchanger corrugated fins
US-10302372-B2 · May 28, 2019 · US
Enhanced gain antenna systems employing fractal metamaterials
US-2019128624-A1 · May 2, 2019 · US
Net shape moldable thermally conductive materials
US-2019113292-A1 · Apr 18, 2019 · US
Cold plate with combined inclined impingement and ribbed channels
US-10244654-B2 · Mar 26, 2019 · US
Apparatus, system, and method for interior fluid flow with optimized fin structures
US-2019086161-A1 · Mar 21, 2019 · US
Condenser tubes with additional flank structure
US-2019033010-A1 · Jan 31, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F2215/10?
- CPC F28F2215/10 is the Cooperative Patent Classification code for “Secondary fins, e.g. projections or recesses on main fins.”
- How many patents are filed under CPC F28F2215/10 (Secondary fins, e.g. projections or recesses on main fins)?
- Our database includes 188 publications tagged with this CPC code.
- Is patent activity under CPC F28F2215/10 growing?
- Publication counts under this code: 15 in 2024 vs 21 in 2025 (latest complete years).