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 | F02D9/02 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 763 |
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 | 76 |
| 2016 | 85 |
| 2017 | 100 |
| 2018 | 97 |
| 2019 | 119 |
| 2020 | 78 |
| 2021 | 64 |
| 2022 | 66 |
| 2023 | 29 |
| 2024 | 24 |
| 2025 | 19 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Go-kart with internal combustion engine with adjustable power
US-2024093650-A1 · Mar 21, 2024 · US
Control apparatus for an internal combustion engine
US-2015377156-A1 · Dec 31, 2015 · US
Speed control apparatus and program for speed control apparatus; and automatic vehicle driving apparatus, engine dynamo control apparatus, and control programs used for respective apparatuses
US-9223748-B2 · Dec 29, 2015 · US
Hybrid vehicle control device and hybrid vehicle control method
US-9216735-B2 · Dec 22, 2015 · US
System and method for determining smart torque curve optimizing user performance
US-2015361915-A1 · Dec 17, 2015 · US
Valve, particularly an exhaust gas recirculation valve
US-2015345434-A1 · Dec 3, 2015 · US
Control device and control method for internal combustion engine
US-9181860-B2 · Nov 10, 2015 · US
Method and system for controlling engine vacuum production
US-9175626-B2 · Nov 3, 2015 · US
Methods and systems for variable displacement engine control
US-9169788-B2 · Oct 27, 2015 · US
Marine propulsion system with efficient engine speed delta
US-9156536-B1 · Oct 13, 2015 · US
Methods and systems for variable displacement engine control
US-9151216-B2 · Oct 6, 2015 · US
Model predictive control systems and methods for internal combustion engines
US-2015275793-A1 · Oct 1, 2015 · US
Electric hybrid powertrain regeneration efficiency improvement
US-2015275773-A1 · Oct 1, 2015 · US
Engine control systems and methods for future torque request increases
US-2015275771-A1 · Oct 1, 2015 · US
Control system for internal combustion engine
US-9115656-B2 · Aug 25, 2015 · US
Intake Manifold with Integrated Charge Air Cooler with Two Circuits
US-2015233281-A1 · Aug 20, 2015 · US
Internal combustion engine control system
US-2015233304-A1 · Aug 20, 2015 · US
Control device of internal combustion engine
US-2015226137-A1 · Aug 13, 2015 · US
Control system for internal combustion engine
US-9103291-B2 · Aug 11, 2015 · US
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D9/02?
- CPC F02D9/02 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02D9/02 (Mechanical Engineering)?
- Our database includes 763 publications tagged with this CPC code.
- Is patent activity under CPC F02D9/02 growing?
- Publication counts under this code: 24 in 2024 vs 19 in 2025 (latest complete years).