Method and system for determing thermal state
US-2020386179-A1 · Dec 10, 2020 · US
using means for determining characteristics of the combustion gases; Sensors therefor
using means for determining characteristics of the combustion gases; Sensors therefor · 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 | F02D41/1438 |
| Official title | {using means for determining characteristics of the combustion gases; Sensors therefor} |
| Display label | using means for determining characteristics of the combustion gases; Sensors therefor |
| Total patents | 97 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 12 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 15 |
| 2020 | 12 |
| 2021 | 12 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and systems for an aftertreatment system
US-2020362784-A1 · Nov 19, 2020 · US
Method and system for catalyst feedback control
US-2020355130-A1 · Nov 12, 2020 · US
Methods and systems for an aftertreatment system
US-10760512-B2 · Sep 1, 2020 · US
Method And System For Determining An Amount Of A Substance In Exhaust Gas Of An Internal Combustion Engine
US-2020224599-A1 · Jul 16, 2020 · US
Method and device for controlling fuel injection of diesel engine
US-10557419-B2 · Feb 11, 2020 · US
Engine system with inferential sensor
US-2020003142-A1 · Jan 2, 2020 · US
Fuel system diagnostics
US-10519888-B2 · Dec 31, 2019 · US
Methods and systems for an aftertreatment system
US-2019331043-A1 · Oct 31, 2019 · US
Method and system for diagnosing operation of an engine compression ratio changing mechanism
US-10450983-B2 · Oct 22, 2019 · US
Method of operating a fuel injector
US-10450987-B2 · Oct 22, 2019 · US
Systems and methods for diagnosing a vehicle engine intake manifold and exhaust system
US-10436138-B2 · Oct 8, 2019 · US
Engine system with inferential sensor
US-10415492-B2 · Sep 17, 2019 · US
Drive system, motor vehicle, and method for operating a drive system
US-2019264630-A1 · Aug 29, 2019 · US
Method for operating an internal combustion engine, internal combustion engine, and motor vehicle
US-2019263258-A1 · Aug 29, 2019 · US
Exhaust gas purification apparatus for an internal combustion engine
US-2019195103-A1 · Jun 27, 2019 · US
Method and system for diagnosing operation of an engine compression ratio changing mechanism
US-2019178193-A1 · Jun 13, 2019 · US
Method and system for catalyst feedback control
US-10267202-B2 · Apr 23, 2019 · US
Method For Reducing Range Of Fluctuation Of Exhaust Emission Values Of Identically Contructed Engine Arrangements Of A Production Series
US-2019107063-A1 · Apr 11, 2019 · US
Signal conditioning module for a wide-band oxygen sensor
US-10190520-B1 · Jan 29, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D41/1438?
- CPC F02D41/1438 is the Cooperative Patent Classification code for “using means for determining characteristics of the combustion gases; Sensors therefor.”
- How many patents are filed under CPC F02D41/1438 (using means for determining characteristics of the combustion gases; Sensors therefor)?
- Our database includes 97 publications tagged with this CPC code.
- Is patent activity under CPC F02D41/1438 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).