System and method for controlling a multi-speed transmission on a marine engine
US-10766592-B1 · Sep 8, 2020 · US
Controlling two or more co-operating engines
Controlling two or more co-operating 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 | F02D25/00 |
| Official title | Controlling two or more co-operating engines |
| Display label | Controlling two or more co-operating engines |
| Total patents | 96 |
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 | 15 |
| 2016 | 10 |
| 2017 | 10 |
| 2018 | 13 |
| 2019 | 11 |
| 2020 | 7 |
| 2021 | 11 |
| 2022 | 7 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hybrid vehicle
US-2019375284-A1 · Dec 12, 2019 · US
Combined Engine Systems
US-2019323438-A1 · Oct 24, 2019 · US
Twin engine power uniter
US-10435026-B2 · Oct 8, 2019 · US
Fuel selection method and related system for a mobile asset
US-2019293004-A1 · Sep 26, 2019 · US
Reducing noise produced by well operations
US-2019242220-A1 · Aug 8, 2019 · US
Fuel selection method and related system for a mobile asset
US-10344687-B2 · Jul 9, 2019 · US
System for and method of operating watercraft
US-10336427-B1 · Jul 2, 2019 · US
Gaseous fuel pumping system
US-10323581-B2 · Jun 18, 2019 · US
Engine device
US-10267254-B2 · Apr 23, 2019 · US
Methods and system for controlling engine starting
US-2019107069-A1 · Apr 11, 2019 · US
Engine
US-10174720-B2 · Jan 8, 2019 · US
Engine device
US-2018298840-A1 · Oct 18, 2018 · US
Method and control device for operating a system consisting of a plurality of internal combustion engines
US-10100755-B2 · Oct 16, 2018 · US
Turbocharger system for an engine
US-10054039-B2 · Aug 21, 2018 · US
Twin engine power uniter
US-2018222484-A1 · Aug 9, 2018 · US
Supplying gaseous fuel from a liquid state to an engine
US-10030613-B2 · Jul 24, 2018 · US
Engine
US-9982608-B2 · May 29, 2018 · US
Drive control device and drive control method for hybrid electric vehicle
US-9951709-B2 · Apr 24, 2018 · US
System and Method for Starting a Multi-Engine Power System
US-2018106230-A1 · Apr 19, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D25/00?
- CPC F02D25/00 is the Cooperative Patent Classification code for “Controlling two or more co-operating engines.”
- How many patents are filed under CPC F02D25/00 (Controlling two or more co-operating engines)?
- Our database includes 96 publications tagged with this CPC code.
- Is patent activity under CPC F02D25/00 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).