- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01N - Gas-flow silencers or exhaust apparatus for machines or engines in generalgas-flow silencers or exhaust apparatus for internal-combustion engines
- F01N 1/02 - Silencing apparatus characterised by method of silencing by using resonance
Patent holdings for IPC class F01N 1/02
Total number of patents in this class: 494
10-year publication summary
|
57
|
49
|
30
|
45
|
51
|
41
|
30
|
16
|
13
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Honda Motor Co., Ltd. | 25379 |
31 |
| Purem GmbH, Formerly, Eberspächer Exhaust Technology GmbH | 308 |
23 |
| Futaba Industrial Co., Ltd. | 338 |
21 |
| Tenneco Automotive Operating Company Inc. | 619 |
18 |
| Ford Global Technologies, LLC | 20682 |
15 |
| Hyundai Motor Company | 22200 |
11 |
| Tenneco GmbH | 131 |
10 |
| Bayerische Motoren Werke Aktiengesellschaft | 14446 |
9 |
| Faurecia Emissions Control Technologies, USA, LLC | 157 |
8 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12760 |
8 |
| MANN+HUMMEL GmbH | 1762 |
7 |
| Suzuki Motor Corporation | 1315 |
7 |
| K&N Engineering, Inc. | 435 |
7 |
| Caterpillar Inc. | 9604 |
6 |
| Fisher Controls International LLC | 1506 |
6 |
| Toyota Motor Corporation | 32681 |
5 |
| Kia Motors Corporation | 7751 |
5 |
| Ajou University Industry-academic Cooperation Foundation | 1053 |
5 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2766 |
5 |
| Umfotec GmbH | 18 |
5 |
| Other owners | 282 |