Air-cooled, four-stroke aviation engine
US-2026022676-A1 · Jan 22, 2026 · US
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for cooling intake or exhaust valves
for cooling intake or exhaust valves · 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 | F01P1/08 |
| Official title | for cooling intake or exhaust valves |
| Display label | for cooling intake or exhaust valves |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air-cooled, four-stroke aviation engine
US-12429010-B2 · Sep 30, 2025 · US
Air-cooled, four-stroke aviation engine
US-2024337227-A1 · Oct 10, 2024 · US
Internal combustion engine
US-12055088-B2 · Aug 6, 2024 · US
Air-cooled, four-stroke aviation engine
US-12012910-B2 · Jun 18, 2024 · US
Damper device and total heat exchanger including the same
US-11761374-B2 · Sep 19, 2023 · US
Damper device and total heat exchanger including the same
US-2022381179-A1 · Dec 1, 2022 · US
Internal combustion engine
US-2022298956-A1 · Sep 22, 2022 · US
Methods and systems for a cooling arrangement
US-11125143-B2 · Sep 21, 2021 · US
Methods and systems for a cooling arrangement
US-2021062708-A1 · Mar 4, 2021 · US
Cylinder head for an internal combustion engine
US-10655559-B2 · May 19, 2020 · US
Turbocharger system having an air-cooled wastegate actuator
US-10450946-B2 · Oct 22, 2019 · US
Cylinder head for an internal combustion engine
US-10408162-B2 · Sep 10, 2019 · US
Engine system having integrated intercooler
US-10378430-B2 · Aug 13, 2019 · US
Air cooled electronic turbo actuator
US-2019218963-A1 · Jul 18, 2019 · US
Engine system having integrated intercooler
US-2018328264-A1 · Nov 15, 2018 · US
Cylinder head for an internal combustion engine
US-2018106213-A1 · Apr 19, 2018 · US
Turbocharger system having an air-cooled wastegate actuator
US-2018066576-A1 · Mar 8, 2018 · US
Turbocharger system having an air-cooled wastegate actuator
US-9822696-B2 · Nov 21, 2017 · US
Cooling air intake device for vehicle
US-9551268-B2 · Jan 24, 2017 · US