Heat exchanger having header structure for dispersing thermal stress
US-2023341194-A1 · Oct 26, 2023 · US
Arrangements for sealing elements into header boxes or end plates {(arrangements for sealing flow lines connectors to header boxes F28F9/0248)}
Arrangements for sealing elements into header boxes or end plates {(arrangements for sealing flow lines connectors to header boxes F28F9/0248)} · 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 | F28F9/04 |
| Official title | Arrangements for sealing elements into header boxes or end plates {(arrangements for sealing flow lines connectors to header boxes F28F9/0248)} |
| Display label | Arrangements for sealing elements into header boxes or end plates {(arrangements for sealing flow lines connectors to header boxes F28F9/0248)} |
| Total patents | 79 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 10 |
| 2019 | 10 |
| 2020 | 10 |
| 2021 | 12 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 8 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Micro-channel heat exchanger
US-2022390187-A1 · Dec 8, 2022 · US
Heat exchanger transfer tubes
US-11480392-B2 · Oct 25, 2022 · US
Bracket for fixing temperature sensor, heat exchanger including the bracket, and water heating apparatus using the heat exchanger for freeze protection
US-11428580-B2 · Aug 30, 2022 · US
Fluid heat exchange assembly, and heat management system of vehicle
US-11285781-B2 · Mar 29, 2022 · US
Heat exchanger
US-2022065542-A1 · Mar 3, 2022 · US
Heat exchanger
US-11255619-B2 · Feb 22, 2022 · US
System for adjusting temperature of transmission oil, heat exchange assembly and valve assembly
US-11187464-B2 · Nov 30, 2021 · US
Heat exchanger and air-conditioning apparatus
US-11156412-B2 · Oct 26, 2021 · US
Collector tube for a heat exchanger
US-11143464-B2 · Oct 12, 2021 · US
Collector plate, corresponding header box and corresponding heat exchanger
US-2021285732-A1 · Sep 16, 2021 · US
Finless heat exchanger apparatus and methods
US-11098962-B2 · Aug 24, 2021 · US
Battery cooler
US-2021249711-A1 · Aug 12, 2021 · US
Apparatus and methods for additively manufacturing microtube heat exchangers
US-11022375-B2 · Jun 1, 2021 · US
Heat exchanger
US-2021108869-A1 · Apr 15, 2021 · US
Heat transfer system
US-2021095926-A1 · Apr 1, 2021 · US
Bracket for fixing temperature sensor, heat exchanger including the bracket, and water heating apparatus using the heat exchanger for freeze protection
US-2021072093-A1 · Mar 11, 2021 · US
Integrated heat exchanger
US-10921068-B2 · Feb 16, 2021 · US
Heat Exchanger Transfer Tubes
US-2021018270-A1 · Jan 21, 2021 · US
Hinged baffle assembly for heat recovery steam generator
US-10845134-B2 · Nov 24, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F9/04?
- CPC F28F9/04 is the Cooperative Patent Classification code for “Arrangements for sealing elements into header boxes or end plates {(arrangements for sealing flow lines connectors to header boxes F28F9/0248)}.”
- How many patents are filed under CPC F28F9/04 (Arrangements for sealing elements into header boxes or end plates {(arrangements for sealing flow lines connectors to header boxes F28F9/0248)})?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC F28F9/04 growing?
- Publication counts under this code: 8 in 2024 vs 5 in 2025 (latest complete years).