Exhaust treatment device for diesel engine
US-2017370266-A1 · Dec 28, 2017 · US
by means of air, e.g. by mixing exhaust with air (silencers working by addition of air to exhaust F01N1/14; arrangements for the supply of additional air for the thermal or catalytic conversion of noxious components of exhaust F01N3/30)
by means of air, e.g. by mixing exhaust with air (silencers working by addition of air to exhaust F01N1/14; arrangements for the supply of additional air for the thermal or catalytic conversion of noxious components of exhaust F01N3/30) · 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 | F01N3/05 |
| Official title | by means of air, e.g. by mixing exhaust with air (silencers working by addition of air to exhaust F01N1/14; arrangements for the supply of additional air for the thermal or catalytic conversion of noxious components of exhaust F01N3/30) |
| Display label | by means of air, e.g. by mixing exhaust with air (silencers working by addition of air to exhaust F01N1/14; arrangements for the supply of additional air for the thermal or catalytic conversion of noxious components of exhaust F01N3/30) |
| Total patents | 170 |
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 | 15 |
| 2016 | 22 |
| 2017 | 25 |
| 2018 | 17 |
| 2019 | 15 |
| 2020 | 16 |
| 2021 | 16 |
| 2022 | 12 |
| 2023 | 15 |
| 2024 | 11 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and control device for correcting an output signal of an exhaust gas sensor
US-2017370267-A1 · Dec 28, 2017 · US
Power generation system exhaust cooling
US-9850794-B2 · Dec 26, 2017 · US
Power generation system exhaust cooling
US-9840953-B2 · Dec 12, 2017 · US
Air Gap-Insulated Muffler
US-2017350301-A1 · Dec 7, 2017 · US
Power generation system exhaust cooling
US-2017342911-A1 · Nov 30, 2017 · US
Exhaust systems and methods for gas turbine engine
US-2017335728-A1 · Nov 23, 2017 · US
Tempering Air System For Gas Turbine Selective Catalyst Reduction System
US-2017335734-A1 · Nov 23, 2017 · US
Venturi exhaust gas cooler
US-2017292421-A1 · Oct 12, 2017 · US
Cyclonic thermal diffuser and method
US-2017268403-A1 · Sep 21, 2017 · US
Active aero flap apparatus for muffler of vehicle
US-9758201-B1 · Sep 12, 2017 · US
Gas turbine exhaust diffuser with air injection
US-2017254222-A1 · Sep 7, 2017 · US
Engine assembly with combined engine and cooling exhaust
US-2017226959-A1 · Aug 10, 2017 · US
Anti-icing system for gas turbines
US-2017204771-A1 · Jul 20, 2017 · US
Secondary-air supply structure for saddle-ride type vehicle
US-9708962-B2 · Jul 18, 2017 · US
Hydrophobic filtration of tempering air
US-2017182442-A1 · Jun 29, 2017 · US
Forced air exhaust diffuser
US-2017145883-A1 · May 25, 2017 · US
Method of Cleaning Diesel Particulate Filters
US-2017122156-A1 · May 4, 2017 · US
Muffler and engine system
US-9605572-B2 · Mar 28, 2017 · US
Methods and systems related to selective catalytic reduction
US-2017058742-A1 · Mar 2, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01N3/05?
- CPC F01N3/05 is the Cooperative Patent Classification code for “by means of air, e.g. by mixing exhaust with air (silencers working by addition of air to exhaust F01N1/14; arrangements for the supply of additional air for the thermal or catalytic conversion of noxious components of exhaust F01N3/30).”
- How many patents are filed under CPC F01N3/05 (by means of air, e.g. by mixing exhaust with air (silencers working by addition of air to exhaust F01N1/14; arrangements for the supply of additional air for the thermal or catalytic conversion of noxious components of exhaust F01N3/30))?
- Our database includes 170 publications tagged with this CPC code.
- Is patent activity under CPC F01N3/05 growing?
- Publication counts under this code: 11 in 2024 vs 6 in 2025 (latest complete years).