Electronic Control Device and Combustion State Detection System
US-2024426257-A1 · Dec 26, 2024 · US
Mechanical Engineering
Mechanical Engineering · 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 | F02D41/009 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 1,131 |
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 | 72 |
| 2016 | 73 |
| 2017 | 109 |
| 2018 | 123 |
| 2019 | 103 |
| 2020 | 145 |
| 2021 | 165 |
| 2022 | 148 |
| 2023 | 79 |
| 2024 | 68 |
| 2025 | 37 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Proximity probe piston positioning systems
US-2024230468-A1 · Jul 11, 2024 · US
Adaptive cam angle error estimation
US-2015377165-A1 · Dec 31, 2015 · US
Camshaft positioning
US-2015369195-A1 · Dec 24, 2015 · US
Engine with laser ignition and measurement
US-9217638-B2 · Dec 22, 2015 · US
Diagnosis method and device for operating an internal combustion engine
US-9217384-B2 · Dec 22, 2015 · US
Method for diagnosing a variable reluctance magnetic detection head, and detection circuit
US-9217786-B2 · Dec 22, 2015 · US
System and method for detecting air fuel ratio imbalance
US-2015345416-A1 · Dec 3, 2015 · US
Automatic stopping and restarting device of internal combustion engine
US-2015345457-A1 · Dec 3, 2015 · US
Rotation angle detection apparatus
US-2015338241-A1 · Nov 26, 2015 · US
Direct injection pump control for low fuel pumping volumes
US-2015337783-A1 · Nov 26, 2015 · US
System and method for diagnosing a fault in a camshaft position sensor and/or a crankshaft position sensor
US-9194321-B1 · Nov 24, 2015 · US
Control apparatus of internal combustion engine
US-9188078-B2 · Nov 17, 2015 · US
Determining the Amount of Energy Released in a Cylinder of an Internal Combustion Engine by Evaluating Tooth Timings of a Sensor Disc that is connected to a Crankshaft
US-2015322877-A1 · Nov 12, 2015 · US
Method for predicting the duration of a future time interval
US-9184679-B2 · Nov 10, 2015 · US
Control apparatus for internal combustion engine
US-2015315993-A1 · Nov 5, 2015 · US
Method And Device For Detecting Auto-Ignitions On The Basis Of Measured And Estimated Internal Cylinder Pressure Values Of An Internal Combustion Engine
US-2015316020-A1 · Nov 5, 2015 · US
Method For Determining A Cylinder Pressure-Crankshaft Position Assignment For An Internal Combustion Engine
US-2015308360-A1 · Oct 29, 2015 · US
Control system and method for detecting the rotational speed of an internal combustion engine
US-9170176-B2 · Oct 27, 2015 · US
Method for processing a signal supplied by a bi-directional sensor and corresponding device
US-2015300917-A1 · Oct 22, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D41/009?
- CPC F02D41/009 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02D41/009 (Mechanical Engineering)?
- Our database includes 1,131 publications tagged with this CPC code.
- Is patent activity under CPC F02D41/009 growing?
- Publication counts under this code: 68 in 2024 vs 37 in 2025 (latest complete years).