- 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 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: 3183
10-year publication summary
|
270
|
280
|
315
|
296
|
226
|
263
|
144
|
127
|
95
|
21
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
405 |
| Isuzu Motors Limited | 2158 |
256 |
| Toyota Motor Corporation | 28582 |
149 |
| Johnson Matthey Public Limited Company | 1852 |
129 |
| Hino Motors, Ltd. | 370 |
82 |
| BASF Corporation | 2039 |
71 |
| Umicore AG & Co. KG | 867 |
68 |
| Komatsu Ltd. | 4265 |
63 |
| Ford Global Technologies, LLC | 19702 |
60 |
| Yanmar Co., Ltd. | 1479 |
53 |
| Hyundai Motor Company | 19021 |
49 |
| Bosch Corporation | 404 |
48 |
| Honda Motor Co., Ltd. | 24537 |
40 |
| Shanghai Bixiufu Enterprise Management Co., Ltd. | 201 |
40 |
| Denso Corporation | 23338 |
39 |
| Cummins Emission Solutions, Inc. | 480 |
38 |
| Nissan Diesel Motor Co., Ltd. | 58 |
37 |
| GM Global Technology Operations LLC | 13620 |
36 |
| Cummins Inc. | 2369 |
36 |
| Cataler Corporation | 533 |
33 |
| Other owners | 1451 |