Exhaust systems and methods for gas turbine engine
US-2017335728-A1 · Nov 23, 2017 · US
using transversal baffles defining a tortuous path for the exhaust gases or successively throttling exhaust gas flow
using transversal baffles defining a tortuous path for the exhaust gases or successively throttling exhaust gas flow · 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 | F01N1/083 |
| Official title | {using transversal baffles defining a tortuous path for the exhaust gases or successively throttling exhaust gas flow} |
| Display label | using transversal baffles defining a tortuous path for the exhaust gases or successively throttling exhaust gas flow |
| Total patents | 206 |
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 | 16 |
| 2016 | 15 |
| 2017 | 32 |
| 2018 | 13 |
| 2019 | 32 |
| 2020 | 23 |
| 2021 | 23 |
| 2022 | 19 |
| 2023 | 18 |
| 2024 | 12 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Exhaust muffler for longitudinal installation in a vehicle
US-2017321581-A1 · Nov 9, 2017 · US
Muffler for engine
US-2017306817-A1 · Oct 26, 2017 · US
Engine
US-9784153-B2 · Oct 10, 2017 · US
Exhaust after-treatment assembly for engine system
US-2017276043-A1 · Sep 28, 2017 · US
Muffler device including central common active control valve
US-2017276041-A1 · Sep 28, 2017 · US
Exhaust muffler for transverse installation in a vehicle
US-9758032-B2 · Sep 12, 2017 · US
Exhaust muffler
US-9745884-B2 · Aug 29, 2017 · US
Muffler
US-2017218806-A1 · Aug 3, 2017 · US
Exhaust system for internal combustion engine
US-9719384-B2 · Aug 1, 2017 · US
Exhaust System for an Internal Combustion Engine and Method for Operating the Exhaust System
US-2017198617-A1 · Jul 13, 2017 · US
Silencer
US-9695718-B2 · Jul 4, 2017 · US
Engine-exhaust-system apparatus and package-type engine electric power generator
US-9689289-B2 · Jun 27, 2017 · US
Reductant mixing system for an exhaust gas after-treatment device
US-9689290-B2 · Jun 27, 2017 · US
Exhaust muffler for combustion engine
US-2017167333-A1 · Jun 15, 2017 · US
Reductant mixing system for an exhaust gas after-treatment device
US-2017152778-A1 · Jun 1, 2017 · US
Muffler
US-9644509-B2 · May 9, 2017 · US
Optimized structure for integrated catalytic muffler
US-2017122171-A1 · May 4, 2017 · US
Exhaust pipe structure for vehicle
US-9611770-B2 · Apr 4, 2017 · US
Exhaust muffler and sound deadening element
US-2017089239-A1 · Mar 30, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01N1/083?
- CPC F01N1/083 is the Cooperative Patent Classification code for “using transversal baffles defining a tortuous path for the exhaust gases or successively throttling exhaust gas flow.”
- How many patents are filed under CPC F01N1/083 (using transversal baffles defining a tortuous path for the exhaust gases or successively throttling exhaust gas flow)?
- Our database includes 206 publications tagged with this CPC code.
- Is patent activity under CPC F01N1/083 growing?
- Publication counts under this code: 12 in 2024 vs 2 in 2025 (latest complete years).