- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01N - Gas-flow silencers or exhaust apparatus for machines or engines in general; gas-flow silencers or exhaust apparatus for internal-combustion engines
- F01N 13/02 - Exhaust or silencing apparatus characterised by constructional features having two or more separate silencers in series
Patent holdings for IPC class F01N 13/02
Total number of patents in this class: 183
10-year publication summary
|
20
|
7
|
14
|
8
|
14
|
3
|
4
|
5
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Peugeot Citroen Automobiles SA | 1903 |
12 |
| Daimler AG | 3462 |
10 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
8 |
| Honda Motor Co., Ltd. | 24537 |
7 |
| Audi AG | 7153 |
6 |
| BASF Corporation | 2039 |
5 |
| Umicore AG & Co. KG | 867 |
5 |
| Volkswagen AG | 6966 |
5 |
| Ford Global Technologies, LLC | 19702 |
4 |
| Caterpillar Inc. | 8877 |
4 |
| Hyundai Motor Company | 19021 |
4 |
| Emitec Gesellschaft für Emissionstechnologie mbH | 375 |
4 |
| Faurecia Systemes D'Echappement | 222 |
4 |
| Wartsila Finland Oy | 740 |
4 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
4 |
| Perkins Engines Company Limited | 279 |
3 |
| Tenneco GmbH | 117 |
3 |
| GE Global Sourcing LLC | 944 |
3 |
| Toyota Jidosha Kabushiki Kaisha | 983 |
3 |
| Toyota Motor Corporation | 28582 |
2 |
| Other owners | 83 |