Precision air flow routing devices and method for thermal spray coating
US-11879173-B2 · Jan 23, 2024 · 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 | F02F1/004 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 466 |
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 | 33 |
| 2016 | 66 |
| 2017 | 59 |
| 2018 | 65 |
| 2019 | 66 |
| 2020 | 53 |
| 2021 | 44 |
| 2022 | 27 |
| 2023 | 15 |
| 2024 | 15 |
| 2025 | 18 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cylinder liner assembly having a thermal barrier coating
US-2016356239-A1 · Dec 8, 2016 · US
Remanufactured cylinder block for internal combustion engine
US-2016356240-A1 · Dec 8, 2016 · US
Cylinder For Opposed-Piston Engines
US-2016356241-A1 · Dec 8, 2016 · US
Cylinder liner and method for producing same
US-2016332225-A1 · Nov 17, 2016 · US
Cylinder block for engine of vehicle
US-2016326979-A1 · Nov 10, 2016 · US
Cylinder liner of an internal combustion engine
US-2016319767-A1 · Nov 3, 2016 · US
Cylinder liner with an undercut seal trap
US-9482178-B2 · Nov 1, 2016 · US
Cylinder Liner
US-2016252042-A1 · Sep 1, 2016 · US
Cylinder liner and method for producing same
US-9427801-B2 · Aug 30, 2016 · US
Device for measuring friction on a cylinder/piston arrangement
US-2016238515-A1 · Aug 18, 2016 · US
Engine having composite cylinder block
US-9416749-B2 · Aug 16, 2016 · US
Reciprocating piston engine with liner
US-2016230695-A1 · Aug 11, 2016 · US
Device for coating cylinder walls
US-2016207056-A1 · Jul 21, 2016 · US
Engine and engine operating machine having the engine
US-2016201598-A1 · Jul 14, 2016 · US
Internal combustion engine with light metal alloy engine block and cast iron cylinder liners
US-9388763-B2 · Jul 12, 2016 · US
Temperature Reducing Channel
US-2016177862-A1 · Jun 23, 2016 · US
Cylinder Liner for an Engine Block
US-2016177871-A1 · Jun 23, 2016 · US
Engine for vehicles
US-2016160793-A1 · Jun 9, 2016 · US
Engine having composite cylinder block
US-9341136-B2 · May 17, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02F1/004?
- CPC F02F1/004 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02F1/004 (Mechanical Engineering)?
- Our database includes 466 publications tagged with this CPC code.
- Is patent activity under CPC F02F1/004 growing?
- Publication counts under this code: 15 in 2024 vs 18 in 2025 (latest complete years).