Regeneration device for exhaust-gas purifying device
US-2017268450-A1 · Sep 21, 2017 · 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 | F02D41/027 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 304 |
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 | 28 |
| 2016 | 27 |
| 2017 | 35 |
| 2018 | 46 |
| 2019 | 36 |
| 2020 | 37 |
| 2021 | 29 |
| 2022 | 31 |
| 2023 | 17 |
| 2024 | 9 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Control device and control method for internal combustion engine
US-2017260920-A1 · Sep 14, 2017 · US
System and method for reducing harmful substances of ship and ship using the same
US-9714600-B2 · Jul 25, 2017 · US
Sulfur concentration determination system for an internal combustion engine
US-9677442-B2 · Jun 13, 2017 · US
Over-fueling control based on oxygen sensor feedback
US-2017030285-A1 · Feb 2, 2017 · US
NOx control during engine idle-stop operations
US-9518287-B2 · Dec 13, 2016 · US
Exhaust purifying apparatus for internal combustion engine
US-9500110-B2 · Nov 22, 2016 · US
Systems and methods for regeneration of a diesel oxidation catalyst in a dual-fuel engine
US-2016333761-A1 · Nov 17, 2016 · US
Torque compensation for detonation
US-9482202-B2 · Nov 1, 2016 · US
Systems and methods for desulfation of an oxidation catalyst for dual fuel engines
US-2016281619-A1 · Sep 29, 2016 · US
Exhaust gas purification system and exhaust gas purification method
US-9447743-B2 · Sep 20, 2016 · US
Method for removing carbon monoxide and hydrocarbons from the exhaust gas of lean-burn internal combustion engines
US-9433899-B2 · Sep 6, 2016 · US
Internal combustion engine equipped with an aftertreatment device
US-2016252028-A1 · Sep 1, 2016 · US
Aftertreatment control system
US-2016252029-A1 · Sep 1, 2016 · US
Internal combustion engine and control method for same
US-9422848-B2 · Aug 23, 2016 · US
Method for reducing the particle emission of an internal combustion engine and engine controller
US-9422885-B2 · Aug 23, 2016 · US
Exhaust purifying apparatus for internal combustion engine
US-2016222850-A1 · Aug 4, 2016 · US
Deterioration diagnosis apparatus for the exhaust gas purification apparatus
US-2016186628-A1 · Jun 30, 2016 · US
Combustion controller for internal combustion engine
US-9353696-B2 · May 31, 2016 · US
System and Method for Reducing Harmful Substances of Ship and Ship Using the Same
US-2016144942-A1 · May 26, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D41/027?
- CPC F02D41/027 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02D41/027 (Mechanical Engineering)?
- Our database includes 304 publications tagged with this CPC code.
- Is patent activity under CPC F02D41/027 growing?
- Publication counts under this code: 9 in 2024 vs 8 in 2025 (latest complete years).