Intake port for generating high tumble and swirl
US-10100717-B2 · Oct 16, 2018 · US
Movable means, e.g. butterfly valves
Movable means, e.g. butterfly valves · 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 | F02B31/06 |
| Official title | Movable means, e.g. butterfly valves |
| Display label | Movable means, e.g. butterfly valves |
| Total patents | 158 |
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 | 12 |
| 2016 | 20 |
| 2017 | 26 |
| 2018 | 26 |
| 2019 | 28 |
| 2020 | 20 |
| 2021 | 16 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Intake apparatus for engine
US-2018142609-A1 · May 24, 2018 · US
Rotational position sensor structure for an intake manifold
US-9851220-B2 · Dec 26, 2017 · US
Controller for internal combustion engine and control method for internal combustion engine
US-2017363028-A1 · Dec 21, 2017 · US
Method and system for an engine variable charge motion system
US-2017335778-A1 · Nov 23, 2017 · US
Fuel injection unit for internal combustion engine
US-2017306902-A1 · Oct 26, 2017 · US
Engine air intake structure
US-9797298-B2 · Oct 24, 2017 · US
Intake air control apparatus of engine
US-9784225-B2 · Oct 10, 2017 · US
Actuator and assembling method thereof
US-9784383-B2 · Oct 10, 2017 · US
Method and system for an engine variable charge motion system
US-9784189-B2 · Oct 10, 2017 · US
Air intake structure for vehicle engine
US-2017284332-A1 · Oct 5, 2017 · US
Engine system with rotatable flow guide
US-2017260913-A1 · Sep 14, 2017 · US
Bypass valve for compressor
US-2017248068-A1 · Aug 31, 2017 · US
Drive force transmission device
US-9683610-B2 · Jun 20, 2017 · US
Apparatus and method for controlling internal-combustion engine
US-9670863-B2 · Jun 6, 2017 · US
Engine structure for vehicle
US-2017145904-A1 · May 25, 2017 · US
Variable intake system with variable valve
US-9644581-B2 · May 9, 2017 · US
Opening/closing valve structure
US-2017114711-A1 · Apr 27, 2017 · US
Gas intake system for a vehicle engine
US-9617956-B2 · Apr 11, 2017 · US
Engine Control System
US-2017074178-A1 · Mar 16, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B31/06?
- CPC F02B31/06 is the Cooperative Patent Classification code for “Movable means, e.g. butterfly valves.”
- How many patents are filed under CPC F02B31/06 (Movable means, e.g. butterfly valves)?
- Our database includes 158 publications tagged with this CPC code.
- Is patent activity under CPC F02B31/06 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).