- 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 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
Patent holdings for IPC class F01N 3/08
Total number of patents in this class: 3139
10-year publication summary
|
315
|
296
|
226
|
265
|
145
|
129
|
113
|
92
|
73
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12488 |
357 |
| Isuzu Motors Limited | 2312 |
245 |
| Toyota Motor Corporation | 34938 |
139 |
| Johnson Matthey Public Limited Company | 1761 |
126 |
| Hino Motors, Ltd. | 332 |
69 |
| Umicore AG & Co. KG | 854 |
68 |
| Komatsu Ltd. | 4663 |
63 |
| Ford Global Technologies, LLC | 21329 |
56 |
| Hyundai Motor Company | 24037 |
51 |
| Yanmar Co., Ltd. | 1365 |
51 |
| BASF Mobile Emissions Catalysts LLC | 430 |
50 |
| Cummins Inc. | 2609 |
47 |
| Bosch Corporation | 368 |
46 |
| Cummins Emission Solutions, Inc. | 573 |
45 |
| Shanghai Bixiufu Enterprise Management Co., Ltd. | 189 |
40 |
| Denso Corporation | 25303 |
39 |
| GM Global Technology Operations LLC | 15918 |
36 |
| Cataler Corporation | 579 |
36 |
| Honda Motor Co., Ltd. | 25890 |
35 |
| Vitesco Technologies GmbH | 2404 |
35 |
| Other owners | 1505 |