Exhaust system for an engine
US-12162562-B2 · Dec 10, 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 | F02D41/40 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 832 |
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 | 54 |
| 2016 | 90 |
| 2017 | 91 |
| 2018 | 118 |
| 2019 | 104 |
| 2020 | 96 |
| 2021 | 99 |
| 2022 | 67 |
| 2023 | 35 |
| 2024 | 30 |
| 2025 | 29 |
| 2026 | 19 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel injection controller and fuel injection system
US-2016298565-A1 · Oct 13, 2016 · US
Control system for internal combustion engine
US-9441554-B2 · Sep 13, 2016 · US
Control Device for Internal Combustion Engine and Control Method for Internal Combustion Engine
US-2016245214-A1 · Aug 25, 2016 · US
Method and systems for exhaust gas control
US-2016160811-A1 · Jun 9, 2016 · US
Method and apparatus for estimating nitrogen oxides out of an engine
US-2016097314-A1 · Apr 7, 2016 · US
Fuel injection control apparatus
US-2015377169-A1 · Dec 31, 2015 · US
Fuel injection control apparatus
US-2015377168-A1 · Dec 31, 2015 · US
Device and method for controlling internal combustion engine
US-2015377175-A1 · Dec 31, 2015 · US
Direct injection event-based engine starting
US-9222423-B2 · Dec 29, 2015 · US
Control Device and Control Method of Engine
US-2015369152-A1 · Dec 24, 2015 · US
Controller for internal combustion engine
US-2015369165-A1 · Dec 24, 2015 · US
System and method for preventing stochastic pre-ignition
US-9217386-B2 · Dec 22, 2015 · US
Method for determining the injection law of a fuel injector using a roller-test bench
US-9212640-B2 · Dec 15, 2015 · US
System and Method for Controlling Fuel Injection Characteristics in an Engine
US-2015354525-A1 · Dec 10, 2015 · US
Method and system for controlling fuel injection
US-2015345418-A1 · Dec 3, 2015 · US
Fuel property judgment device and method of judging fuel property
US-2015346180-A1 · Dec 3, 2015 · US
Control apparatus of internal combustion engine
US-9188078-B2 · Nov 17, 2015 · US
Control device for internal combustion engine
US-2015322881-A1 · Nov 12, 2015 · US
Control device for internal combustion engine
US-9163578-B2 · Oct 20, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D41/40?
- CPC F02D41/40 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02D41/40 (Mechanical Engineering)?
- Our database includes 832 publications tagged with this CPC code.
- Is patent activity under CPC F02D41/40 growing?
- Publication counts under this code: 30 in 2024 vs 29 in 2025 (latest complete years).