Cylinder head and engine
US-10519895-B2 · Dec 31, 2019 · US
of both intake and exhaust channel
of both intake and exhaust channel · 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 | F02F1/4285 |
| Official title | {of both intake and exhaust channel} |
| Display label | of both intake and exhaust channel |
| Total patents | 136 |
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 | 5 |
| 2016 | 14 |
| 2017 | 14 |
| 2018 | 14 |
| 2019 | 24 |
| 2020 | 18 |
| 2021 | 14 |
| 2022 | 8 |
| 2023 | 12 |
| 2024 | 7 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Semi-compliant coating for thermal expansion absorption
US-10519896-B2 · Dec 31, 2019 · US
Direct-injection internal combustion engine with two valves per cylinder
US-2019376464-A1 · Dec 12, 2019 · US
Composite engine architecture, and method of manufacturing the same
US-10487778-B2 · Nov 26, 2019 · US
Cylinder head
US-2019195167-A1 · Jun 27, 2019 · US
Cooling jacket for cylinder head
US-10323601-B2 · Jun 18, 2019 · US
Internal combustion engine comprising a liquid cooling circuit
US-2019178201-A1 · Jun 13, 2019 · US
Manufacturing method for cylinder head
US-10252323-B2 · Apr 9, 2019 · US
Internal combustion engine
US-10233825-B2 · Mar 19, 2019 · US
Cylinder head
US-10202934-B2 · Feb 12, 2019 · US
Multi-cylinder Otto-cycle engine and method for operating the same
US-10196991-B2 · Feb 5, 2019 · US
Friction-welded structure assembly, water-cooled internal combustion engine cylinder head, water-cooled internal combustion engine and machine equipped with same
US-10197006-B2 · Feb 5, 2019 · US
Water jacket for a cylinder head
US-10190531-B2 · Jan 29, 2019 · US
Internal combustion engine
US-10161296-B2 · Dec 25, 2018 · US
Barrier ring and assembly for a cylinder of an opposed-piston engine
US-10156202-B2 · Dec 18, 2018 · US
Semi-compliant coating for thermal expansion absorption
US-2018334991-A1 · Nov 22, 2018 · US
Cylinder head for an internal combustion engine
US-10113502-B2 · Oct 30, 2018 · US
Control device for internal combustion engine
US-10107147-B2 · Oct 23, 2018 · US
Water-jacket structure of cylinder head and method for operating the same
US-10087814-B2 · Oct 2, 2018 · US
Cylinder head for internal combustion engine
US-2018274477-A1 · Sep 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02F1/4285?
- CPC F02F1/4285 is the Cooperative Patent Classification code for “of both intake and exhaust channel.”
- How many patents are filed under CPC F02F1/4285 (of both intake and exhaust channel)?
- Our database includes 136 publications tagged with this CPC code.
- Is patent activity under CPC F02F1/4285 growing?
- Publication counts under this code: 7 in 2024 vs 5 in 2025 (latest complete years).