Compression ignited combustion engine
US-2019368412-A1 · Dec 5, 2019 · US
by means within the induction channel, e.g. deflectors
by means within the induction channel, e.g. deflectors · 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 | F02B31/04 |
| Official title | by means within the induction channel, e.g. deflectors |
| Display label | by means within the induction channel, e.g. deflectors |
| Total patents | 119 |
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 | 8 |
| 2016 | 7 |
| 2017 | 14 |
| 2018 | 11 |
| 2019 | 24 |
| 2020 | 13 |
| 2021 | 19 |
| 2022 | 10 |
| 2023 | 7 |
| 2024 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Intake device of internal combustion engine
US-2019360389-A1 · Nov 28, 2019 · US
Controlling intake valves in an internal combustion engine
US-2019345880-A1 · Nov 14, 2019 · US
Cylinder head of internal combustion engine
US-2019323420-A1 · Oct 24, 2019 · US
Otto and diesel cycles employing spinning gas
US-10450943-B2 · Oct 22, 2019 · US
Charge motion control valve and intake runner system
US-10428745-B2 · Oct 1, 2019 · US
Partition plate
US-10400720-B2 · Sep 3, 2019 · US
Partition plate
US-10393075-B2 · Aug 27, 2019 · US
Partition plate
US-2019226433-A1 · Jul 25, 2019 · US
Internal combustion engine
US-10352231-B2 · Jul 16, 2019 · US
Fluid injector spray disc having offset channel architecture, and methods for constructing and utilizing same
US-10344725-B2 · Jul 9, 2019 · US
Internal combustion engine
US-2019203634-A1 · Jul 4, 2019 · US
Intake structure of internal combustion engine
US-2019186343-A1 · Jun 20, 2019 · US
Intake apparatus for engine
US-10302006-B2 · May 28, 2019 · US
Variable position shift type variable charge motion system and engine
US-2019112969-A1 · Apr 18, 2019 · US
Air intake duct and combustion system of turbocharged gasoline engine
US-2019093595-A1 · Mar 28, 2019 · US
Air intake device
US-10240653-B2 · Mar 26, 2019 · US
Internal combustion engine
US-10233825-B2 · Mar 19, 2019 · US
Intake device with flap bearing arrangement and flap bearing arrangement
US-10208788-B2 · Feb 19, 2019 · US
Air intake structure for vehicle engine
US-10190532-B2 · Jan 29, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B31/04?
- CPC F02B31/04 is the Cooperative Patent Classification code for “by means within the induction channel, e.g. deflectors.”
- How many patents are filed under CPC F02B31/04 (by means within the induction channel, e.g. deflectors)?
- Our database includes 119 publications tagged with this CPC code.
- Is patent activity under CPC F02B31/04 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).