V engine having valve property varying mechanism
US-10066553-B2 · Sep 4, 2018 · US
Mechanical Engineering
Mechanical Engineering · 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 | F02F1/20 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 129 |
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 | 18 |
| 2016 | 13 |
| 2017 | 22 |
| 2018 | 12 |
| 2019 | 17 |
| 2020 | 17 |
| 2021 | 14 |
| 2022 | 7 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Combination of cylinder and piston ring
US-10036345-B2 · Jul 31, 2018 · US
Lubrication circuit and method of forming
US-10036346-B2 · Jul 31, 2018 · US
Oil drain for an internal combustion engine
US-2018195423-A1 · Jul 12, 2018 · US
Cylinder bore with surface characteristics for improved tribological properties, and method
US-2018087468-A1 · Mar 29, 2018 · US
Cylinder lubrication system for two-stroke engine
US-9926821-B2 · Mar 27, 2018 · US
Sliding assembly
US-9915220-B2 · Mar 13, 2018 · US
Internal Combustion Engine, Especially Reciprocating Internal Combustion Engine
US-2017370322-A1 · Dec 28, 2017 · US
V engine having valve property varying mechanism
US-2017350324-A1 · Dec 7, 2017 · US
Iron-based sprayed coating, cylinder block for internal combustion engine using same, and sliding mechanism for internal combustion engine
US-9828934-B2 · Nov 28, 2017 · US
Carbon scraper
US-9822702-B2 · Nov 21, 2017 · US
Assembly for a V-engine
US-9771862-B2 · Sep 26, 2017 · US
Cylinder device having improved wear resistance through optimal arrangement of fine textures
US-9759325-B2 · Sep 12, 2017 · US
Engine block
US-9739231-B2 · Aug 22, 2017 · US
Oil supply circuit of an engine
US-2017218801-A1 · Aug 3, 2017 · US
Machine with reduced cylinder friction
US-2017211506-A1 · Jul 27, 2017 · US
Reciprocating machine with cylinder having collector groove
US-2017204842-A1 · Jul 20, 2017 · US
Cylinder liner for an internal combustion engine
US-2017167430-A1 · Jun 15, 2017 · US
Cylinder block
US-9664138-B2 · May 30, 2017 · US
Cylinder for application on an internal combustion engine
US-9650986-B2 · May 16, 2017 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02F1/20?
- CPC F02F1/20 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02F1/20 (Mechanical Engineering)?
- Our database includes 129 publications tagged with this CPC code.
- Is patent activity under CPC F02F1/20 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).