- 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: 3172
10-year publication summary
|
274
|
309
|
292
|
224
|
264
|
144
|
127
|
109
|
87
|
52
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12787 |
383 |
| Isuzu Motors Limited | 2259 |
250 |
| Toyota Motor Corporation | 32450 |
139 |
| Johnson Matthey Public Limited Company | 1866 |
124 |
| Hino Motors, Ltd. | 344 |
71 |
| Umicore AG & Co. KG | 855 |
68 |
| Komatsu Ltd. | 4557 |
62 |
| Ford Global Technologies, LLC | 20646 |
56 |
| Hyundai Motor Company | 22086 |
51 |
| Yanmar Co., Ltd. | 1404 |
51 |
| Bosch Corporation | 381 |
46 |
| BASF Mobile Emissions Catalysts LLC | 405 |
46 |
| Cummins Inc. | 2593 |
45 |
| Cummins Emission Solutions, Inc. | 543 |
44 |
| Shanghai Bixiufu Enterprise Management Co., Ltd. | 186 |
40 |
| Denso Corporation | 24355 |
39 |
| Vitesco Technologies GmbH | 2605 |
37 |
| Honda Motor Co., Ltd. | 25327 |
36 |
| GM Global Technology Operations LLC | 15095 |
35 |
| Cataler Corporation | 574 |
35 |
| Other owners | 1514 |