- 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 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
Patent holdings for IPC class F01N 3/24
Total number of patents in this class: 1304
10-year publication summary
|
83
|
70
|
50
|
72
|
36
|
49
|
29
|
36
|
31
|
3
|
| 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) | 12369 |
200 |
| Isuzu Motors Limited | 2323 |
108 |
| Yanmar Co., Ltd. | 1347 |
66 |
| Honda Motor Co., Ltd. | 26025 |
59 |
| Hino Motors, Ltd. | 333 |
55 |
| Denso Corporation | 25534 |
41 |
| Komatsu Ltd. | 4723 |
40 |
| NGK Insulators, Ltd. | 5236 |
37 |
| Kabushiki Kaisha Toyota Jidoshokki | 1811 |
37 |
| Nissan Motor Co., Ltd. | 12964 |
32 |
| Futaba Industrial Co., Ltd. | 363 |
32 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
30 |
| Cataler Corporation | 571 |
25 |
| Tenneco Automotive Operating Company Inc. | 455 |
21 |
| Bosch Corporation | 359 |
19 |
| Yamaha Hatsudoki Kabushiki Kaisha | 2238 |
19 |
| Mazda Motor Corporation | 3296 |
17 |
| Mitsui Mining & Smelting Co., Ltd. | 1100 |
16 |
| Cummins Emission Solutions, Inc. | 579 |
15 |
| Hitachi Construction Machinery Co., Ltd. | 2752 |
14 |
| Other owners | 421 |