- 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: 3134
10-year publication summary
|
315
|
296
|
226
|
265
|
145
|
129
|
114
|
92
|
77
|
46
|
| 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) | 12318 |
348 |
| Isuzu Motors Limited | 2339 |
246 |
| Toyota Motor Corporation | 36327 |
139 |
| Johnson Matthey Public Limited Company | 1765 |
126 |
| Hino Motors, Ltd. | 337 |
68 |
| Umicore AG & Co. KG | 843 |
67 |
| Komatsu Ltd. | 4811 |
63 |
| Ford Global Technologies, LLC | 21624 |
56 |
| Hyundai Motor Company | 25034 |
51 |
| Yanmar Co., Ltd. | 1338 |
51 |
| BASF Mobile Emissions Catalysts LLC | 428 |
49 |
| Cummins Inc. | 2659 |
48 |
| Bosch Corporation | 356 |
45 |
| Cummins Emission Solutions, Inc. | 587 |
45 |
| Shanghai Bixiufu Enterprise Management Co., Ltd. | 190 |
40 |
| Denso Corporation | 25799 |
38 |
| GM Global Technology Operations LLC | 16237 |
36 |
| Mitsubishi Heavy Industries, Ltd. | 9231 |
35 |
| Cataler Corporation | 571 |
35 |
| Vitesco Technologies GmbH | 2397 |
35 |
| Other owners | 1513 |