Double-sided oil cooler for use in a generator engine
US-2019390580-A1 · Dec 26, 2019 · US
with change of flow direction
with change of flow direction · 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 | F28F2250/102 |
| Official title | with change of flow direction |
| Display label | with change of flow direction |
| Total patents | 153 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 15 |
| 2018 | 21 |
| 2019 | 17 |
| 2020 | 17 |
| 2021 | 21 |
| 2022 | 17 |
| 2023 | 20 |
| 2024 | 11 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat exchanger and reactor
US-2019366290-A1 · Dec 5, 2019 · US
Plate package using a heat exchanger plate with integrated draining channel and a heat exchanger including such plate package
US-2019339016-A1 · Nov 7, 2019 · US
Plate package, plate and heat exchanger device
US-2019339017-A1 · Nov 7, 2019 · US
Turbulence member and heat exchanger using same, and water heater
US-10458728-B2 · Oct 29, 2019 · US
Counter-flow fin plate heat exchanger for gas-gas heat exchange
US-10378831-B2 · Aug 13, 2019 · US
Heat exchanger with regional flow distribution for uniform cooling of battery cells
US-10355331-B2 · Jul 16, 2019 · US
Water-cooling radiator structure with internal partition member
US-2019212077-A1 · Jul 11, 2019 · US
Multi-outlet-inlet liquid-cooling heat dissipation structure
US-2019212076-A1 · Jul 11, 2019 · US
Water-cooling radiator unit and water-cooling module using same
US-10306803-B2 · May 28, 2019 · US
Flat tube for a heat exchanger
US-10295275-B2 · May 21, 2019 · US
Heat exchanger
US-10288353-B2 · May 14, 2019 · US
Plate laminated type heat exchanger
US-10281219-B2 · May 7, 2019 · US
Heat exchanger
US-2019113283-A1 · Apr 18, 2019 · US
Counter-flow fin plate heat exchanger for gas-gas heat exchange
US-2019101339-A1 · Apr 4, 2019 · US
Coolant heating apparatus for electric vehicle
US-2019048781-A1 · Feb 14, 2019 · US
Turbulence generator
US-10197343-B2 · Feb 5, 2019 · US
Vehicle heat exchanger
US-10150350-B2 · Dec 11, 2018 · US
Thermal management components for electronic devices
US-2018352676-A1 · Dec 6, 2018 · US
Coolant Supply Device
US-2018340742-A1 · Nov 29, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F2250/102?
- CPC F28F2250/102 is the Cooperative Patent Classification code for “with change of flow direction.”
- How many patents are filed under CPC F28F2250/102 (with change of flow direction)?
- Our database includes 153 publications tagged with this CPC code.
- Is patent activity under CPC F28F2250/102 growing?
- Publication counts under this code: 11 in 2024 vs 7 in 2025 (latest complete years).