Aftertreatment heat up strategies
US-12448908-B2 · Oct 21, 2025 · US
by adding air to exhaust gases {(in tailpipes F01N13/082, F01N13/20)}
by adding air to exhaust gases {(in tailpipes F01N13/082, F01N13/20)} · 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 | F01N1/14 |
| Official title | by adding air to exhaust gases {(in tailpipes F01N13/082, F01N13/20)} |
| Display label | by adding air to exhaust gases {(in tailpipes F01N13/082, F01N13/20)} |
| Total patents | 54 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 13 |
| 2024 | 8 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vehicle with gasoline particulate filter soot regeneration strategy with criteria emission reduction for low NOX emissions
US-12392300-B1 · Aug 19, 2025 · US
Internal combustion engine for a motor vehicle, in particular for a motor car
US-12345187-B2 · Jul 1, 2025 · US
Aircraft provided with an engine and an exhaust duct around an exhaust nozzle of the engine
US-12325527-B2 · Jun 10, 2025 · US
Aftertreatment heat up strategies
US-2025052180-A1 · Feb 13, 2025 · US
Method for controlling powertrain of hybrid vehicle
US-12115969-B2 · Oct 15, 2024 · US
Aircraft provided with an engine and an exhaust duct around an exhaust nozzle of the engine
US-2024190576-A1 · Jun 13, 2024 · US
Method for operating an exhaust burner, device for executing such a method, and motor vehicle
US-11988130-B2 · May 21, 2024 · US
Valve seat injector
US-11959405-B2 · Apr 16, 2024 · US
Method for operating an exhaust burner, apparatus for performing such a method, and motor vehicle
US-11939903-B2 · Mar 26, 2024 · US
Method, processing unit, and computer program for ascertaining an air volume provided by means of an electric air pump in an exhaust system of an internal combustion engine
US-11879368-B2 · Jan 23, 2024 · US
Method for operating an exhaust burner, device for executing such a method, and motor vehicle
US-2024003279-A1 · Jan 4, 2024 · US
Method for operating an exhaust burner, apparatus for performing such a method, and motor vehicle
US-2024003278-A1 · Jan 4, 2024 · US
Internal Combustion Engine for a Motor Vehicle, in Particular for a Motor Car
US-2023417167-A1 · Dec 28, 2023 · US
Method for operating an exhaust gas burner during its start phase
US-11821351-B2 · Nov 21, 2023 · US
EHC line leakage diagnosis method and vehicle exhaust system thereof
US-11746687-B2 · Sep 5, 2023 · US
Tunable sound attenuating modules
US-11713904-B2 · Aug 1, 2023 · US
Methods and systems for reducing hydrocarbon emissions
US-11703017-B2 · Jul 18, 2023 · US
Valve seat injector
US-2023212963-A1 · Jul 6, 2023 · US
Ehc line leakage diagnosis method and vehicle exhaust system thereof
US-2023203978-A1 · Jun 29, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01N1/14?
- CPC F01N1/14 is the Cooperative Patent Classification code for “by adding air to exhaust gases {(in tailpipes F01N13/082, F01N13/20)}.”
- How many patents are filed under CPC F01N1/14 (by adding air to exhaust gases {(in tailpipes F01N13/082, F01N13/20)})?
- Our database includes 54 publications tagged with this CPC code.
- Is patent activity under CPC F01N1/14 growing?
- Publication counts under this code: 8 in 2024 vs 5 in 2025 (latest complete years).