- 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 5/04 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using kinetic energy
Patent holdings for IPC class F01N 5/04
Total number of patents in this class: 303
10-year publication summary
|
30
|
42
|
19
|
30
|
23
|
28
|
19
|
25
|
8
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ford Global Technologies, LLC | 19702 |
32 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
14 |
| BorgWarner Inc. | 2604 |
10 |
| Cummins Inc. | 2369 |
10 |
| Toyota Motor Corporation | 28582 |
7 |
| Deere & Company | 6845 |
7 |
| Caterpillar Inc. | 8877 |
7 |
| Tenneco GmbH | 117 |
6 |
| Hyundai Motor Company | 19021 |
5 |
| Jaguar Land Rover Limited | 4390 |
5 |
| Scuderi Group, Inc. | 31 |
5 |
| Valeo Systemes de Controle Moteur | 614 |
5 |
| Robert Bosch GmbH | 40953 |
4 |
| Bowman Power Group Limited | 29 |
4 |
| International Engine Intellectual Property Company, LLC | 543 |
4 |
| Southwest Research Institute | 791 |
4 |
| Volvo Lastvagnar AB | 922 |
4 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
4 |
| GM Global Technology Operations LLC | 13620 |
3 |
| Denso Corporation | 23338 |
3 |
| Other owners | 160 |