Heat transfer unit for prefabricated vessel
US-2019368660-A1 · Dec 5, 2019 · 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 | F28F1/36 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 121 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 7 |
| 2017 | 20 |
| 2018 | 9 |
| 2019 | 17 |
| 2020 | 11 |
| 2021 | 17 |
| 2022 | 9 |
| 2023 | 10 |
| 2024 | 4 |
| 2025 | 9 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat transfer surface
US-2019346213-A1 · Nov 14, 2019 · US
Double-walled pipe
US-10422448-B2 · Sep 24, 2019 · US
Heat transfer surface
US-10415893-B2 · Sep 17, 2019 · US
3D printed heat exchanger
US-10406601-B2 · Sep 10, 2019 · US
Heat exchanger, radiant tube type heating device, and method of manufacturing heat exchanger
US-2019219346-A1 · Jul 18, 2019 · US
Heat exchanger tube
US-2019145717-A1 · May 16, 2019 · US
Heat exchanger tube
US-2019145718-A1 · May 16, 2019 · US
Thermal capacity of elliptically finned heat exchanger
US-10288352-B2 · May 14, 2019 · US
Heat transfer tube and cracking furnace using the same
US-2019128622-A1 · May 2, 2019 · US
Counter flow heat exchanger
US-2019120560-A1 · Apr 25, 2019 · US
Heat exchanger tube
US-2019120567-A1 · Apr 25, 2019 · US
Duct assembly including helicoidal structure and gas turbine combustor including the same
US-2019086083-A1 · Mar 21, 2019 · US
Heat exchanger having a coaxial or concentric tube construction
US-10221768-B2 · Mar 5, 2019 · US
Heat transfer tube and cracking furnace using the same
US-10209011-B2 · Feb 19, 2019 · US
Device and method for forming inside three-dimensional finned tube by multi-edge ploughing and extruding
US-2019039115-A1 · Feb 7, 2019 · US
Condenser tubes with additional flank structure
US-2019033010-A1 · Jan 31, 2019 · US
3d printed heat exchanger
US-2018345353-A1 · Dec 6, 2018 · US
Integral heat exchanger
US-2018320976-A1 · Nov 8, 2018 · US
Condenser tubes with additional flank structure
US-10094625-B2 · Oct 9, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F1/36?
- CPC F28F1/36 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F28F1/36 (Mechanical Engineering)?
- Our database includes 121 publications tagged with this CPC code.
- Is patent activity under CPC F28F1/36 growing?
- Publication counts under this code: 4 in 2024 vs 9 in 2025 (latest complete years).