Cylinder head and engine
US-10519895-B2 · Dec 31, 2019 · US
the cylinder heads being of overhead valve type
the cylinder heads being of overhead valve type · 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 | F02F1/38 |
| Official title | the cylinder heads being of overhead valve type |
| Display label | the cylinder heads being of overhead valve type |
| Total patents | 117 |
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 | 8 |
| 2016 | 14 |
| 2017 | 14 |
| 2018 | 18 |
| 2019 | 19 |
| 2020 | 19 |
| 2021 | 12 |
| 2022 | 8 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cylinder head for an internal combustion engine
US-10408162-B2 · Sep 10, 2019 · US
Engine
US-2019264635-A1 · Aug 29, 2019 · US
Cylinder head
US-2019195167-A1 · Jun 27, 2019 · US
System for cooling exhaust valve of a reciprocating engine
US-2019128151-A1 · May 2, 2019 · US
Liquid-cooled internal combustion engine
US-2019093542-A1 · Mar 28, 2019 · US
Engine block including an integrated flow channel
US-2018328310-A1 · Nov 15, 2018 · US
Engine block including an integrated flow channel
US-10125718-B1 · Nov 13, 2018 · US
Cylinder head for an internal combustion engine
US-10113502-B2 · Oct 30, 2018 · US
Cooling structure of internal combustion engine
US-10107171-B2 · Oct 23, 2018 · US
Cylinder head for an internal combustion engine
US-10094326-B2 · Oct 9, 2018 · US
Cylinder head device for an internal combustion engine and internal combustion engine having such a cylinder head device
US-10087879-B2 · Oct 2, 2018 · US
Cam carrier insert
US-2018258879-A1 · Sep 13, 2018 · US
Cylinder head
US-2018230936-A1 · Aug 16, 2018 · US
Outboard motor and marine vessel
US-2018178892-A1 · Jun 28, 2018 · US
Internal combustion engine with reduced engine knocking
US-2018142608-A1 · May 24, 2018 · US
Internal combustion engine
US-9964066-B2 · May 8, 2018 · US
Cylinder head
US-9957915-B2 · May 1, 2018 · US
Cylinder head for an internal combustion engine
US-2018106213-A1 · Apr 19, 2018 · US
Cooling water passage structure of internal combustion engine
US-9938881-B2 · Apr 10, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02F1/38?
- CPC F02F1/38 is the Cooperative Patent Classification code for “the cylinder heads being of overhead valve type.”
- How many patents are filed under CPC F02F1/38 (the cylinder heads being of overhead valve type)?
- Our database includes 117 publications tagged with this CPC code.
- Is patent activity under CPC F02F1/38 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).