Fuel Injection System for Enhanced Low Injection Quantity Control
US-2025215839-A1 · Jul 3, 2025 · US
characterised by leakage flow in injectors
characterised by leakage flow in injectors · 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 | F02D41/3872 |
| Official title | {characterised by leakage flow in injectors} |
| Display label | characterised by leakage flow in injectors |
| Total patents | 52 |
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 | 6 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 9 |
| 2019 | 9 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel injection system for enhanced low injection quantity control
US-12215648-B2 · Feb 4, 2025 · US
Fuel Injection System for Enhanced Low Injection Quantity Control
US-2024200505-A1 · Jun 20, 2024 · US
Control for a piezo-electric injector when a foot is raised from the accelerator
US-11828245-B2 · Nov 28, 2023 · US
Control for a piezo-electric injector when a foot is raised from the accelerator
US-2023098221-A1 · Mar 30, 2023 · US
Method and system for valve position monitoring
US-11293370-B1 · Apr 5, 2022 · US
Method for fuel injector characterization
US-11286874-B2 · Mar 29, 2022 · US
Systems and methods for reducing rail pressure in a common rail fuel system
US-2021340931-A1 · Nov 4, 2021 · US
Systems and methods for reducing rail pressure in a common rail fuel system
US-11015548-B2 · May 25, 2021 · US
Systems and methods for reducing rail pressure in a common rail fuel system
US-2021071612-A1 · Mar 11, 2021 · US
Method for Fuel Injector Characterization
US-2021062749-A1 · Mar 4, 2021 · US
Method for ascertaining a continuous injection of a combustion chamber, injection system, and internal combustion engine comprising such an injection system
US-10927783-B2 · Feb 23, 2021 · US
Method and device for operating an internal combustion engine comprising a high-pressure fuel injection system
US-10865729-B2 · Dec 15, 2020 · US
Engine and method for exhaust aftertreatment
US-10760513-B1 · Sep 1, 2020 · US
Method for operating an internal combustion engine, device for the open-loop and/or closed-loop control of an internal combustion engine, injection system and internal combustion engine
US-10641199-B2 · May 5, 2020 · US
Method for ascertaining a continuous injection of a combustion chamber, injection system, and internal combustion engine comprising such an injection system
US-2020116097-A1 · Apr 16, 2020 · US
Fuel injector and method for controlling the same
US-10612488-B2 · Apr 7, 2020 · US
Combustion system estimation device and control device
US-10590881-B2 · Mar 17, 2020 · US
Methods and systems for fuel rail pressure relief
US-10550791-B2 · Feb 4, 2020 · US
System and methods for operating fuel system responsive to inferred fuel temperature
US-10508612-B2 · Dec 17, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D41/3872?
- CPC F02D41/3872 is the Cooperative Patent Classification code for “characterised by leakage flow in injectors.”
- How many patents are filed under CPC F02D41/3872 (characterised by leakage flow in injectors)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC F02D41/3872 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).