Cylinder head
US-12320282-B2 · Jun 3, 2025 · US
Crankcases of one-cylinder engines
Crankcases of one-cylinder engines · 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 | F02F7/0004 |
| Official title | {Crankcases of one-cylinder engines} |
| Display label | Crankcases of one-cylinder engines |
| Total patents | 41 |
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 | 2 |
| 2016 | 5 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 8 |
| 2020 | 2 |
| 2021 | 6 |
| 2022 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engine
US-11384711-B2 · Jul 12, 2022 · US
Engine
US-11313319-B2 · Apr 26, 2022 · US
Cylinder head
US-2022074328-A1 · Mar 10, 2022 · US
Power unit
US-11156255-B2 · Oct 26, 2021 · US
Engine
US-11085394-B2 · Aug 10, 2021 · US
Engine
US-2021054805-A1 · Feb 25, 2021 · US
Engine
US-2021017933-A1 · Jan 21, 2021 · US
Engine
US-2021010444-A1 · Jan 14, 2021 · US
Engine
US-2021003093-A1 · Jan 7, 2021 · US
Engine
US-10724468-B2 · Jul 28, 2020 · US
Power unit
US-2020032856-A1 · Jan 30, 2020 · US
Internal combustion engine
US-2019368407-A1 · Dec 5, 2019 · US
Engine
US-2019360429-A1 · Nov 28, 2019 · US
Air leading-type stratified scavenging two-stroke internal-combustion engine
US-10487777-B2 · Nov 26, 2019 · US
Engine
US-2019264635-A1 · Aug 29, 2019 · US
Single cylinder internal combustion engine
US-10385804-B2 · Aug 20, 2019 · US
Engine
US-10294889-B2 · May 21, 2019 · US
Overhead camshaft engine
US-10227902-B2 · Mar 12, 2019 · US
Welded engine block for small internal combustion engines
US-10202938-B2 · Feb 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02F7/0004?
- CPC F02F7/0004 is the Cooperative Patent Classification code for “Crankcases of one-cylinder engines.”
- How many patents are filed under CPC F02F7/0004 (Crankcases of one-cylinder engines)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC F02F7/0004 growing?
- Publication counts under this code: 3 in 2022 vs 1 in 2025 (latest complete years).