Tube-in-tube unified shell heat exchanger
US-12215930-B2 · Feb 4, 2025 · US
Mechanical Engineering · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F28F1/124 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 62 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 9 |
| 2018 | 13 |
| 2019 | 9 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 3 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12215930-B2 · Feb 4, 2025 · US
US-2024118034-A1 · Apr 11, 2024 · US
US-2023366631-A1 · Nov 16, 2023 · US
US-2023314084-A1 · Oct 5, 2023 · US
US-11774188-B2 · Oct 3, 2023 · US
US-11604032-B2 · Mar 14, 2023 · US
US-11480370-B2 · Oct 25, 2022 · US
US-2022307775-A1 · Sep 29, 2022 · US
US-11453158-B2 · Sep 27, 2022 · US
US-11280551-B2 · Mar 22, 2022 · US
US-11232997-B2 · Jan 25, 2022 · US
US-2021270544-A1 · Sep 2, 2021 · US
US-11085325-B2 · Aug 10, 2021 · US
US-2021123644-A1 · Apr 29, 2021 · US
US-2021057306-A1 · Feb 25, 2021 · US
US-10859208-B2 · Dec 8, 2020 · US
US-10670343-B2 · Jun 2, 2020 · US
US-2020156309-A1 · May 21, 2020 · US
US-10648704-B2 · May 12, 2020 · US
US-10648744-B2 · May 12, 2020 · US
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