Lightweight engine power cell assembly
US-9470311-B2 · Oct 18, 2016 · 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 | F02F3/22 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 406 |
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 | 49 |
| 2016 | 64 |
| 2017 | 63 |
| 2018 | 54 |
| 2019 | 65 |
| 2020 | 44 |
| 2021 | 20 |
| 2022 | 19 |
| 2023 | 13 |
| 2024 | 9 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engine cylinder and liner assembly
US-2016273480-A1 · Sep 22, 2016 · US
Cooling duct piston and method for producing the same
US-9429100-B2 · Aug 30, 2016 · US
Engine for vehicles
US-2016160793-A1 · Jun 9, 2016 · US
Slide shoe for a piston for use in internal combustion engines
US-2016146151-A1 · May 26, 2016 · US
Engine Piston
US-2016138520-A1 · May 19, 2016 · US
Piston for an internal combustion engine
US-9341137-B2 · May 17, 2016 · US
Method for producing a piston for an internal combustion engine
US-9308607-B2 · Apr 12, 2016 · US
Piston for internal combustion engine
US-2016084195-A1 · Mar 24, 2016 · US
Piston ring for an internal combustion engine
US-9279499-B2 · Mar 8, 2016 · US
Method for the production of a piston for an internal combustion engine
US-9242317-B2 · Jan 26, 2016 · US
Engine arrangement for enhanced cooling
US-9206764-B2 · Dec 8, 2015 · US
Individual piston squirter switching with crankangle resolved control
US-2015330286-A1 · Nov 19, 2015 · US
Piston for an internal combustion engine
US-2015330329-A1 · Nov 19, 2015 · US
Piston for an internal combustion engine
US-2015322887-A1 · Nov 12, 2015 · US
Piston
US-2015322886-A1 · Nov 12, 2015 · US
Magnetic arc welded piston assembly
US-2015314388-A1 · Nov 5, 2015 · US
Piston for internal combustion engine
US-9175593-B2 · Nov 3, 2015 · US
Piston with anti-carbon deposit coating and method of construction thereof
US-9169800-B2 · Oct 27, 2015 · US
Piston for an internal combustion engine and method for its production
US-9163580-B2 · Oct 20, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02F3/22?
- CPC F02F3/22 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02F3/22 (Mechanical Engineering)?
- Our database includes 406 publications tagged with this CPC code.
- Is patent activity under CPC F02F3/22 growing?
- Publication counts under this code: 9 in 2024 vs 5 in 2025 (latest complete years).