Thermal battery heat transfer coil
US-2024401818-A1 · Dec 5, 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 | F28F9/013 |
| 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 | 15 |
| 2016 | 24 |
| 2017 | 30 |
| 2018 | 37 |
| 2019 | 31 |
| 2020 | 32 |
| 2021 | 32 |
| 2022 | 26 |
| 2023 | 25 |
| 2024 | 28 |
| 2025 | 18 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat exchanger for cooling electrical element
US-2017365890-A1 · Dec 21, 2017 · US
Subcooler and air conditioner including the same
US-9797658-B2 · Oct 24, 2017 · US
Coil support having condensate management functionality
US-9777962-B2 · Oct 3, 2017 · US
Charge air cooler
US-2017276058-A1 · Sep 28, 2017 · US
Flow control devices and methods for a once-through horizontal evaporator
US-9746174-B2 · Aug 29, 2017 · US
Osmotic Transport System For Evaporative Cooling
US-2017234624-A1 · Aug 17, 2017 · US
Heat exchanger with center manifold and thermal separator
US-2017211888-A1 · Jul 27, 2017 · US
Bracket assembly for a heat exchanger
US-2017205158-A1 · Jul 20, 2017 · US
Heat exchanger arrangement in a housing
US-9709342-B2 · Jul 18, 2017 · US
Anti-vibration tube support plate arrangement for steam generators
US-9697919-B2 · Jul 4, 2017 · US
System for accommodating differential thermal expansion in syngas cooler
US-9688927-B2 · Jun 27, 2017 · US
A wind turbine with a tower-mounted heat exchange structure
US-2017175716-A1 · Jun 22, 2017 · US
Gas cooler
US-2017167797-A1 · Jun 15, 2017 · US
Block-in-shell heat exchanger
US-2017122667-A1 · May 4, 2017 · US
Microchannel coil spray system
US-2017082331-A1 · Mar 23, 2017 · US
Heat exchanger
US-2017030662-A1 · Feb 2, 2017 · US
Heat exchanger and manufacturing method thereof
US-9551539-B2 · Jan 24, 2017 · US
Microchannel coil spray system
US-9546804-B2 · Jan 17, 2017 · US
Tube header for heat exchanger
US-2017010059-A1 · Jan 12, 2017 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F9/013?
- CPC F28F9/013 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F28F9/013 (Mechanical Engineering)?
- Our database includes 302 publications tagged with this CPC code.
- Is patent activity under CPC F28F9/013 growing?
- Publication counts under this code: 28 in 2024 vs 18 in 2025 (latest complete years).