Minimizing Oil Leakage From Rocking Journal Bearings Of Two-Stroke Cycle Engines
US-2016356308-A1 · Dec 8, 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 | F02F3/00 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 311 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 32 |
| 2016 | 53 |
| 2017 | 41 |
| 2018 | 41 |
| 2019 | 28 |
| 2020 | 36 |
| 2021 | 18 |
| 2022 | 21 |
| 2023 | 19 |
| 2024 | 12 |
| 2025 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Piston for internal combustion engines
US-2016348611-A1 · Dec 1, 2016 · US
Cylinder liner with an undercut seal trap
US-9482178-B2 · Nov 1, 2016 · US
Piston for engine
US-2016312739-A1 · Oct 27, 2016 · US
Opposed Piston Two Stroke Engine Liner Construction
US-2016252043-A1 · Sep 1, 2016 · US
Piston with a piston ring groove, in particular a compression groove
US-2016245222-A1 · Aug 25, 2016 · US
Piston for an internal combustion engine, and production method therefor
US-2016245223-A1 · Aug 25, 2016 · US
Piston pin
US-9404577-B2 · Aug 2, 2016 · US
Piston assembly for a reciprocating engine
US-2016201597-A1 · Jul 14, 2016 · US
Steel piston with counter-bore design
US-2016199952-A1 · Jul 14, 2016 · US
Method for Manufacturing Piston for Internal Combustion Engine, and Piston for Internal Combustion Engine
US-2016177864-A1 · Jun 23, 2016 · US
Engine Piston
US-2016169152-A1 · Jun 16, 2016 · US
Engine Piston
US-2016169153-A1 · Jun 16, 2016 · US
Piston for internal combustion engine and manufacturing method thereof
US-2016169151-A1 · Jun 16, 2016 · US
Engine Piston
US-2016138520-A1 · May 19, 2016 · US
Engine crankshaft
US-2016123379-A1 · May 5, 2016 · US
Piston
US-2016123274-A1 · May 5, 2016 · US
Power generator for piston instrumentation
US-2016123272-A1 · May 5, 2016 · US
Piston for an internal combustion engine
US-2016115900-A1 · Apr 28, 2016 · US
Fuel Injector
US-2016115925-A1 · Apr 28, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02F3/00?
- CPC F02F3/00 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02F3/00 (Mechanical Engineering)?
- Our database includes 311 publications tagged with this CPC code.
- Is patent activity under CPC F02F3/00 growing?
- Publication counts under this code: 12 in 2024 vs 10 in 2025 (latest complete years).