V-type engine, outboard motor, and ship
US-12291988-B2 · May 6, 2025 · US
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specially adapted for star-arrangement of cylinders, e.g. exhaust manifolds
specially adapted for star-arrangement of cylinders, e.g. exhaust manifolds · 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 | F01N13/06 |
| Official title | specially adapted for star-arrangement of cylinders, e.g. exhaust manifolds |
| Display label | specially adapted for star-arrangement of cylinders, e.g. exhaust manifolds |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Exhaust gas control apparatus for internal combustion engine
US-12286921-B2 · Apr 29, 2025 · US
Exhaust gas control apparatus for internal combustion engine
US-2024183301-A1 · Jun 6, 2024 · US
V-type engine, outboard motor, and ship
US-2024183295-A1 · Jun 6, 2024 · US
System and method for low CO emission engine
US-11643962-B2 · May 9, 2023 · US
Outlet manifold
US-11236955-B2 · Feb 1, 2022 · US
System and method for low co emission engine
US-2022010716-A1 · Jan 13, 2022 · US
System and method for low CO emission engine
US-11149617-B2 · Oct 19, 2021 · US
Exhaust manifold constructions including thermal barrier coatings for opposed-piston engines
US-11098634-B2 · Aug 24, 2021 · US
Outlet manifold
US-2021222965-A1 · Jul 22, 2021 · US
Outlet manifold
US-10907912-B2 · Feb 2, 2021 · US
Exhaust manifold constructions including thermal barrier coatings for opposed-piston engines
US-2020173334-A1 · Jun 4, 2020 · US
Outlet manifold
US-2020088478-A1 · Mar 19, 2020 · US
Valve body of a gas exchange valve, gas exchange valve and internal combustion engine
US-10519843-B2 · Dec 31, 2019 · US
System and method for low co emission engine
US-2019264595-A1 · Aug 29, 2019 · US
Exhaust manifold
US-10100704-B2 · Oct 16, 2018 · US
Exhaust manifold
US-2018128150-A1 · May 10, 2018 · US
Valve Body Of A Gas Exchange Valve, Gas Exchange Valve And Internal Combustion Engine
US-2018080365-A1 · Mar 22, 2018 · US
Exhaust system structure for improving noise problem
US-2016146086-A1 · May 26, 2016 · US
Partially integrated exhaust manifold
US-8935917-B2 · Jan 20, 2015 · US