- 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 3/033 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
Patent holdings for IPC class F01N 3/033
Total number of patents in this class: 135
10-year publication summary
|
15
|
10
|
17
|
14
|
11
|
1
|
4
|
10
|
5
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nissan Motor Co., Ltd. | 12676 |
8 |
| Ford Global Technologies, LLC | 21058 |
7 |
| RENAULT s.a.s. | 5412 |
6 |
| Cummins Emission Solutions, Inc. | 561 |
5 |
| Mazda Motor Corporation | 3241 |
4 |
| Isuzu Motors Limited | 2278 |
4 |
| Kubota Corporation | 4145 |
4 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 800 |
4 |
| Toyota Motor Corporation | 33893 |
3 |
| Caterpillar Inc. | 9983 |
3 |
| Hyundai Motor Company | 23166 |
3 |
| Continental Automotive GmbH | 4691 |
3 |
| Volvo Lastvagnar AB | 760 |
3 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12626 |
3 |
| Vitesco Technologies GmbH | 2413 |
3 |
| Emitec Gesellschaft für Emissionstechnologie mbH | 230 |
2 |
| Komatsu Ltd. | 4641 |
2 |
| Aisan Kogyo Kabushiki Kaisha | 759 |
2 |
| Cummins Inc. | 2562 |
2 |
| General Electric Technology GmbH | 1359 |
2 |
| Other owners | 62 |