System for injecting an aqueous solution into an injection engine
US-2020370515-A1 · Nov 26, 2020 · US
Adding water
Adding water · 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 | F02M25/025 |
| Official title | Adding water |
| Display label | Adding water |
| Total patents | 142 |
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 | 5 |
| 2017 | 3 |
| 2018 | 19 |
| 2019 | 19 |
| 2020 | 19 |
| 2021 | 26 |
| 2022 | 14 |
| 2023 | 18 |
| 2024 | 10 |
| 2025 | 5 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Spark-Ignition Internal Combustion Engine Having Urea Introduction Device and Method for Operating an Internal Combustion Engine of This Type
US-2020362798-A1 · Nov 19, 2020 · US
Upspeeded Operation Of Alcohol-Enabled Gasoline Engines
US-2020362775-A1 · Nov 19, 2020 · US
Control device for internal combustion engine and control method for internal combustion engine
US-10837372-B2 · Nov 17, 2020 · US
Method and device for water injection
US-10801400-B2 · Oct 13, 2020 · US
Injection Method and System for the Injection of Water in an Internal Combustion Engine
US-2020309068-A1 · Oct 1, 2020 · US
Control device for internal combustion engine
US-10774803-B2 · Sep 15, 2020 · US
System for storing an auxiliary liquid and supplying same to an internal combustion engine
US-10767598-B2 · Sep 8, 2020 · US
Filter Medium and Production Method, Filter Element, Use of the Filter Element, and Water Injection System
US-2020217275-A1 · Jul 9, 2020 · US
Engine system and method for controlling the same
US-10697364-B2 · Jun 30, 2020 · US
Engine device
US-2020063653-A1 · Feb 27, 2020 · US
System to feed water to at least one combustion chamber in an internal combustion engine
US-2020018263-A1 · Jan 16, 2020 · US
Mounting structure of water injection device of internal combustion engine
US-10527006-B2 · Jan 7, 2020 · US
Coolant Delivery Device for a Cooling System of an Internal Combustion Engine, in particular of a Motor Vehicle, Cooling System, and Internal Combustion Engine
US-2019360381-A1 · Nov 28, 2019 · US
Fuel distributor for internal combustion engines
US-2019353126-A1 · Nov 21, 2019 · US
Continuously operating water recovery apparatus for a motor vehicle
US-2019323455-A1 · Oct 24, 2019 · US
Method for knock control of an internal combustion engine
US-10451009-B2 · Oct 22, 2019 · US
Fuel consumption calculation of a fuel and water mixture
US-2019301374-A1 · Oct 3, 2019 · US
Control device for internal combustion engine
US-2019277241-A1 · Sep 12, 2019 · US
Device for Adding a Fluid to Combustion Air of an Internal Combustion Engine
US-2019271283-A1 · Sep 5, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02M25/025?
- CPC F02M25/025 is the Cooperative Patent Classification code for “Adding water.”
- How many patents are filed under CPC F02M25/025 (Adding water)?
- Our database includes 142 publications tagged with this CPC code.
- Is patent activity under CPC F02M25/025 growing?
- Publication counts under this code: 10 in 2024 vs 5 in 2025 (latest complete years).