Piston for internal combustion engine and method of manufacturing same
US-2019390591-A1 · Dec 26, 2019 · US
with separate admission of air and fuel into cylinder
with separate admission of air and fuel into cylinder · 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 | F02B23/10 |
| Official title | with separate admission of air and fuel into cylinder |
| Display label | with separate admission of air and fuel into cylinder |
| Total patents | 182 |
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 | 4 |
| 2016 | 13 |
| 2017 | 11 |
| 2018 | 18 |
| 2019 | 32 |
| 2020 | 34 |
| 2021 | 34 |
| 2022 | 12 |
| 2023 | 13 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engine control device
US-10513990-B2 · Dec 24, 2019 · US
Diesel engine
US-2019376442-A1 · Dec 12, 2019 · US
Control apparatus for compression auto-ignition engine
US-2019309699-A1 · Oct 10, 2019 · US
Piston of internal combustion engine
US-10385802-B2 · Aug 20, 2019 · US
Control device for internal combustion engine
US-10378464-B2 · Aug 13, 2019 · US
Uniflow scavenging two-cycle engine
US-10371042-B2 · Aug 6, 2019 · US
Control system for compression-ignition engine
US-2019186394-A1 · Jun 20, 2019 · US
Intake structure of internal combustion engine
US-2019186343-A1 · Jun 20, 2019 · US
Fuel Injection Control Device
US-2019145305-A1 · May 16, 2019 · US
Internal Combustion Engine Control Device
US-2019107041-A1 · Apr 11, 2019 · US
Internal-combustion engine with direct fuel injection in the direction of the intake gas motion
US-2019101048-A1 · Apr 4, 2019 · US
Two-valve internal-combustion engine
US-2019101047-A1 · Apr 4, 2019 · US
Direct fuel injection internal combustion engine
US-10208698-B2 · Feb 19, 2019 · US
Combustion chamber structure for direct injection engine
US-10156182-B2 · Dec 18, 2018 · US
Cylinder head for an internal combustion engine, internal combustion engine, and method for operating an internal combustion engine
US-2018347451-A1 · Dec 6, 2018 · US
Control method and control device of internal combustion engine
US-2018328262-A1 · Nov 15, 2018 · US
Structure of combustion chamber for direct injection engine
US-10125667-B2 · Nov 13, 2018 · US
Fuel injection control device and fuel injection control method
US-10100772-B2 · Oct 16, 2018 · US
Control device for internal combustion engine
US-2018291826-A1 · Oct 11, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B23/10?
- CPC F02B23/10 is the Cooperative Patent Classification code for “with separate admission of air and fuel into cylinder.”
- How many patents are filed under CPC F02B23/10 (with separate admission of air and fuel into cylinder)?
- Our database includes 182 publications tagged with this CPC code.
- Is patent activity under CPC F02B23/10 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).