Stackable core system for producing cast plate heat exchanger
US-2022412671-A1 · Dec 29, 2022 · US
the conduit assemblies having a square or rectangular shape
the conduit assemblies having a square or rectangular shape · 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 | F28D7/1653 |
| Official title | {the conduit assemblies having a square or rectangular shape} |
| Display label | the conduit assemblies having a square or rectangular shape |
| Total patents | 90 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 5 |
| 2017 | 10 |
| 2018 | 3 |
| 2019 | 10 |
| 2020 | 11 |
| 2021 | 13 |
| 2022 | 9 |
| 2023 | 17 |
| 2024 | 3 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat exchanger
US-11530884-B2 · Dec 20, 2022 · US
Stackable core system for producing cast plate heat exchanger
US-11480397-B2 · Oct 25, 2022 · US
Heat exchanger
US-2022196335-A1 · Jun 23, 2022 · US
Heat exchanger
US-11300024-B2 · Apr 12, 2022 · US
Thermal management system and method
US-2022065539-A1 · Mar 3, 2022 · US
Heat exchanger
US-11236952-B2 · Feb 1, 2022 · US
Heat exchanger
US-2022018605-A1 · Jan 20, 2022 · US
Heat exchanger
US-11181330-B2 · Nov 23, 2021 · US
Pressure vessel
US-11177046-B2 · Nov 16, 2021 · US
Pressure vessel
US-11145423-B2 · Oct 12, 2021 · US
Fuel heat exchanger with a barrier
US-2021231377-A1 · Jul 29, 2021 · US
Flow-path structure
US-11073073-B2 · Jul 27, 2021 · US
Fuel heat exchanger with a barrier
US-11035616-B2 · Jun 15, 2021 · US
Heat transfer tube for heat exchanger
US-11015878-B2 · May 25, 2021 · US
Heat exchanger with integral features
US-10995997-B2 · May 4, 2021 · US
Heat exchanger and air conditioner having the same
US-2021123684-A1 · Apr 29, 2021 · US
Dual pass heat exchanger with drain system
US-10962294-B2 · Mar 30, 2021 · US
Pressure vessel
US-10928137-B2 · Feb 23, 2021 · US
Heat exchanger
US-2021025661-A1 · Jan 28, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28D7/1653?
- CPC F28D7/1653 is the Cooperative Patent Classification code for “the conduit assemblies having a square or rectangular shape.”
- How many patents are filed under CPC F28D7/1653 (the conduit assemblies having a square or rectangular shape)?
- Our database includes 90 publications tagged with this CPC code.
- Is patent activity under CPC F28D7/1653 growing?
- Publication counts under this code: 3 in 2024 vs 9 in 2025 (latest complete years).