Control method of spark ignition engine and spark ignition engine
US-9512814-B2 · Dec 6, 2016 · 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 | F02D41/006 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 309 |
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 | 35 |
| 2016 | 37 |
| 2017 | 40 |
| 2018 | 30 |
| 2019 | 38 |
| 2020 | 51 |
| 2021 | 34 |
| 2022 | 16 |
| 2023 | 12 |
| 2024 | 7 |
| 2025 | 5 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Internal combustion engine
US-2016348601-A1 · Dec 1, 2016 · US
System and methods for purging residual exhaust and uncombusted fuel to an exhaust catalyst
US-2016319718-A1 · Nov 3, 2016 · US
Exhaust purification system for internal combustion engine
US-2016319757-A1 · Nov 3, 2016 · US
Controller and control method for homogeneous charge compression ignition engine
US-9482162-B2 · Nov 1, 2016 · US
Method and systems for exhaust gas recirculation
US-9476388-B2 · Oct 25, 2016 · US
Glowplug control device and method for estimating temperature of glowplug
US-9476397-B2 · Oct 25, 2016 · US
Control system and control method of spark ignition gasoline engine
US-9470174-B2 · Oct 18, 2016 · US
Control apparatus and method for internal combustion engine
US-9470163-B2 · Oct 18, 2016 · US
Control apparatus of internal-combustion engine
US-9458775-B2 · Oct 4, 2016 · US
Differential fueling between donor and non-donor cylinders in engines
US-2016252027-A1 · Sep 1, 2016 · US
Engine control apparatus
US-2016215705-A1 · Jul 28, 2016 · US
Control device for multi-cylinder internal combustion engine
US-9399944-B2 · Jul 26, 2016 · US
Control device of engine
US-2016201635-A1 · Jul 14, 2016 · US
Method of operating an internal combustion engine with low NOx combustion
US-9382834-B2 · Jul 5, 2016 · US
Method for operating a spark ignited engine
US-2016177854-A1 · Jun 23, 2016 · US
Spark-ignition internal combustion engine having wall portion separating at least the two cylinders
US-9359935-B2 · Jun 7, 2016 · US
Method and apparatus for fuel injection of engine system
US-2016138486-A1 · May 19, 2016 · US
Catalyst heating with exhaust back-pressure
US-2016131060-A1 · May 12, 2016 · US
Systems and methods for transient control
US-2016102636-A1 · Apr 14, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D41/006?
- CPC F02D41/006 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02D41/006 (Mechanical Engineering)?
- Our database includes 309 publications tagged with this CPC code.
- Is patent activity under CPC F02D41/006 growing?
- Publication counts under this code: 7 in 2024 vs 5 in 2025 (latest complete years).