Marine vessel and marine engine cooling system
US-2025171128-A1 · May 29, 2025 · US
Marine engines
Marine engines · 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 | F01P2050/02 |
| Official title | Marine engines |
| Display label | Marine engines |
| Total patents | 26 |
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 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 5 |
| 2019 | 4 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Marine propulsion and generator systems and methods
US-12037953-B2 · Jul 16, 2024 · US
Personal watercraft
US-2024009602-A1 · Jan 11, 2024 · US
Marine propulsion and generator systems and methods
US-2023175447-A1 · Jun 8, 2023 · US
Systems and methods for preventing engine overcooling
US-11578640-B1 · Feb 14, 2023 · US
Marine cooling system, marine propulsion device, and marine vessel
US-11536188-B2 · Dec 27, 2022 · US
Marine cooling system, marine propulsion device, and marine vessel
US-2022260004-A1 · Aug 18, 2022 · US
Cooling device for power source for ship propulsion device
US-11383810-B2 · Jul 12, 2022 · US
Active draining of engine cooling system
US-11293335-B1 · Apr 5, 2022 · US
Cooling device for power source for ship propulsion device
US-2021371071-A1 · Dec 2, 2021 · US
Cooling device for amphibious vehicle and amphibious vehicle
US-11179988-B2 · Nov 23, 2021 · US
Methods, assemblies, and apparatuses for forming a water jacket in a cast part of a marine engine
US-11045869-B1 · Jun 29, 2021 · US
Cooling device for amphibious vehicle and amphibious vehicle
US-2021122203-A1 · Apr 29, 2021 · US
Methods, assemblies, and apparatuses for forming a water jacket in a cast part of a marine engine
US-10464125-B1 · Nov 5, 2019 · US
Engine
US-10408161-B2 · Sep 10, 2019 · US
Cooling systems and strainers for cooling systems for marine engines
US-10293910-B1 · May 21, 2019 · US
Apparatuses and methods for cooling exhaust gas emitted from an internal combustion engine in a marine drive
US-10174661-B1 · Jan 8, 2019 · US
Method and system for maintaining an engine coolant level
US-10151233-B2 · Dec 11, 2018 · US
Method and system for maintaining an engine coolant level
US-2018320578-A1 · Nov 8, 2018 · US
Method and system for maintaining an engine coolant level
US-10012133-B1 · Jul 3, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01P2050/02?
- CPC F01P2050/02 is the Cooperative Patent Classification code for “Marine engines.”
- How many patents are filed under CPC F01P2050/02 (Marine engines)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC F01P2050/02 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).