Heat exchanger manifold
US-12416458-B2 · Sep 16, 2025 · US
having a second heat exchanger disposed there within, e.g. oil cooler
having a second heat exchanger disposed there within, e.g. oil cooler · 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 | F28F9/0234 |
| Official title | {having a second heat exchanger disposed there within, e.g. oil cooler} |
| Display label | having a second heat exchanger disposed there within, e.g. oil cooler |
| Total patents | 55 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 6 |
| 2019 | 8 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Feature for subfreezing heat exchanger
US-2025229595-A1 · Jul 17, 2025 · US
Air conditioning system, and heat exchange system for heat dissipation of electronic control assembly of air conditioning system
US-12320532-B2 · Jun 3, 2025 · US
Heat exchanger and clothing processing equipment having the same
US-2025155204-A1 · May 15, 2025 · US
Thermal management assembly and battery thermal management system
US-2025062442-A1 · Feb 20, 2025 · US
Heated header for subfreezing heat exchanger
US-11867472-B2 · Jan 9, 2024 · US
Subfreezing heat exchanger with separate melt fluid
US-11668531-B2 · Jun 6, 2023 · US
Air conditioning system, and heat exchange system for heat dissipation of electronic control assembly of air conditioning system
US-2023033824-A1 · Feb 2, 2023 · US
Evaporator header liquid suction heat exchangers
US-11549764-B2 · Jan 10, 2023 · US
Heated header for subfreezing heat exchanger
US-2022349660-A1 · Nov 3, 2022 · US
Subfreezing heat exchanger with separate melt fluid
US-2022178621-A1 · Jun 9, 2022 · US
Evaporator header liquid suction heat exchangers
US-2022170704-A1 · Jun 2, 2022 · US
Heat exchanger manifold
US-2022128324-A1 · Apr 28, 2022 · US
Integral evaporator header liquid suction heat exchanger
US-11287195-B2 · Mar 29, 2022 · US
Passive containment cooling system including multiple condensing stages and catalyst
US-11289214-B2 · Mar 29, 2022 · US
Wedge Tool For Radiator Assembly Process
US-2021293494-A1 · Sep 23, 2021 · US
Oil management in a refrigeration system—compressor oil cooler integrated into gascooler
US-10989451-B2 · Apr 27, 2021 · US
Passive containment cooling system including multiple condensing stages and catalyst, and method of making the same
US-2020279662-A1 · Sep 3, 2020 · US
Heat pump system for vehicle
US-10744850-B2 · Aug 18, 2020 · US
Oil cooler
US-10662833-B2 · May 26, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F9/0234?
- CPC F28F9/0234 is the Cooperative Patent Classification code for “having a second heat exchanger disposed there within, e.g. oil cooler.”
- How many patents are filed under CPC F28F9/0234 (having a second heat exchanger disposed there within, e.g. oil cooler)?
- Our database includes 55 publications tagged with this CPC code.
- Is patent activity under CPC F28F9/0234 growing?
- Publication counts under this code: 1 in 2024 vs 5 in 2025 (latest complete years).