Determination of nitrogen oxide concentration in engine exhaust gas
US-2018347495-A1 · Dec 6, 2018 · US
NOx storage amount, i.e. amount of NOx stored on NOx trap
NOx storage amount, i.e. amount of NOx stored on NOx trap · 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 | F02D2200/0806 |
| Official title | NOx storage amount, i.e. amount of NOx stored on NOx trap |
| Display label | NOx storage amount, i.e. amount of NOx stored on NOx trap |
| Total patents | 135 |
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 | 9 |
| 2016 | 18 |
| 2017 | 22 |
| 2018 | 23 |
| 2019 | 26 |
| 2020 | 15 |
| 2021 | 7 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Controller for internal combustion engine
US-10138784-B2 · Nov 27, 2018 · US
Exhaust gas control system and exhaust gas control method for hybrid vehicle
US-2018281774-A1 · Oct 4, 2018 · US
Abnormality diagnosis apparatus for exhaust gas purification apparatus
US-2018274427-A1 · Sep 27, 2018 · US
Automated driving vehicle control system
US-10082792-B2 · Sep 25, 2018 · US
Method of controlling the operation of an aftertreatment system of a motor vehicle
US-10054019-B2 · Aug 21, 2018 · US
Exhaust Emission Control System
US-2018209316-A1 · Jul 26, 2018 · US
Control apparatus for internal combustion engine
US-2018171910-A1 · Jun 21, 2018 · US
Exhaust purification system
US-2018111087-A1 · Apr 26, 2018 · US
NOx OCCLUSION AMOUNT ESTIMATING DEVICE AND NOx OCCLUSION AMOUNT ESTIMATING METHOD
US-2018073413-A1 · Mar 15, 2018 · US
Exhaust emission control system of engine
US-2018038301-A1 · Feb 8, 2018 · US
Exhaust purification device and method of calculating NOx mass reduced from lean NOx trap during regeneration
US-9835067-B2 · Dec 5, 2017 · US
Method to control fuel spray duration for internal combustion engines
US-2017342938-A1 · Nov 30, 2017 · US
Exhaust gas purification system and exhaust gas purification method
US-9828899-B2 · Nov 28, 2017 · US
Method of operating an engine
US-9810672-B2 · Nov 7, 2017 · US
Exhaust gas purifying system
US-9810120-B2 · Nov 7, 2017 · US
Exhaust purification device and method of calculating NOx mass adsorbed in lean NOx trap of exhaust purification device
US-9803525-B2 · Oct 31, 2017 · US
Method and unit for operating a fuel metering system in an internal combustion engine
US-2017268412-A1 · Sep 21, 2017 · US
Automated driving vehicle control system
US-2017235310-A1 · Aug 17, 2017 · US
Method of controlling the operation of an aftertreatment system of a motor vehicle
US-2017211443-A1 · Jul 27, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D2200/0806?
- CPC F02D2200/0806 is the Cooperative Patent Classification code for “NOx storage amount, i.e. amount of NOx stored on NOx trap.”
- How many patents are filed under CPC F02D2200/0806 (NOx storage amount, i.e. amount of NOx stored on NOx trap)?
- Our database includes 135 publications tagged with this CPC code.
- Is patent activity under CPC F02D2200/0806 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).