- 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 3/02 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
Patent holdings for IPC class F01N 3/02
Total number of patents in this class: 1705
10-year publication summary
|
108
|
81
|
98
|
64
|
83
|
45
|
40
|
44
|
32
|
11
|
| 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) | 12821 |
141 |
| Isuzu Motors Limited | 2248 |
90 |
| NGK Insulators, Ltd. | 4941 |
75 |
| Ibiden Co., Ltd. | 1703 |
73 |
| Yanmar Co., Ltd. | 1405 |
63 |
| Ford Global Technologies, LLC | 20520 |
47 |
| GM Global Technology Operations LLC | 14968 |
41 |
| Toyota Motor Corporation | 31819 |
33 |
| Cummins Inc. | 2572 |
31 |
| Caterpillar Inc. | 9530 |
30 |
| Hitachi Construction Machinery Co., Ltd. | 2636 |
29 |
| Hyundai Motor Company | 21897 |
29 |
| Honda Motor Co., Ltd. | 25174 |
27 |
| Hino Motors, Ltd. | 347 |
27 |
| Komatsu Ltd. | 4528 |
24 |
| Cummins Emission Solutions, Inc. | 538 |
23 |
| Hitachi Metals, Ltd. | 1985 |
20 |
| Mitsubishi Heavy Industries, Ltd. | 8694 |
19 |
| Sumitomo Chemical Company, Limited | 9040 |
19 |
| Purem GmbH, Formerly, Eberspächer Exhaust Technology GmbH | 307 |
18 |
| Other owners | 846 |