Marine drive unit comprising a closed cooling circuit
US-12515776-B2 · Jan 6, 2026 · US
liquid-to-liquid heat-exchanging relative to marine vessels
liquid-to-liquid heat-exchanging relative to marine vessels · 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 | F01P3/207 |
| Official title | {liquid-to-liquid heat-exchanging relative to marine vessels} |
| Display label | liquid-to-liquid heat-exchanging relative to marine vessels |
| Total patents | 54 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 1 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 7 |
| 2023 | 10 |
| 2024 | 6 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cooling system for watercraft
US-12358601-B2 · Jul 15, 2025 · US
Engine
US-12228066-B2 · Feb 18, 2025 · US
Thermal management system of ship composite energy power system and control method thereof
US-12158098-B1 · Dec 3, 2024 · US
Primer pump assembly and a method of cooling a marine vessel
US-2024344519-A1 · Oct 17, 2024 · US
Engine
US-12055086-B2 · Aug 6, 2024 · US
Exhaust coolant system and method
US-12055087-B2 · Aug 6, 2024 · US
Tank for use in temperature control system and temperature control system
US-2024141821-A1 · May 2, 2024 · US
Combined cooling system for motor and motor controller
US-11870328-B2 · Jan 9, 2024 · US
Engine
US-2023287826-A1 · Sep 14, 2023 · US
Engine
US-2023265779-A1 · Aug 24, 2023 · US
Engine
US-2023265782-A1 · Aug 24, 2023 · US
Cooling system for watercraft
US-2023242230-A1 · Aug 3, 2023 · US
Exhaust coolant system and method
US-2023235693-A1 · Jul 27, 2023 · US
Marine drive unit comprising a closed cooling circuit
US-2023211863-A1 · Jul 6, 2023 · US
Cooling system for a power generation system on a marine vessel
US-11691707-B1 · Jul 4, 2023 · US
Systems and methods for control of engine cooling
US-11649758-B1 · May 16, 2023 · US
Exhaust coolant system and method
US-11629630-B2 · Apr 18, 2023 · US
Systems and methods for preventing engine overcooling
US-11578640-B1 · Feb 14, 2023 · US
Cooling apparatus for cooling a fluid by means of surface water
US-11480399-B2 · Oct 25, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01P3/207?
- CPC F01P3/207 is the Cooperative Patent Classification code for “liquid-to-liquid heat-exchanging relative to marine vessels.”
- How many patents are filed under CPC F01P3/207 (liquid-to-liquid heat-exchanging relative to marine vessels)?
- Our database includes 54 publications tagged with this CPC code.
- Is patent activity under CPC F01P3/207 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).