- 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: 1630
10-year publication summary
|
81
|
98
|
64
|
83
|
45
|
42
|
44
|
35
|
20
|
5
|
| 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) | 12517 |
127 |
| Isuzu Motors Limited | 2307 |
77 |
| Yanmar Co., Ltd. | 1370 |
62 |
| NGK Insulators, Ltd. | 5206 |
61 |
| Ibiden Co., Ltd. | 1667 |
57 |
| Ford Global Technologies, LLC | 21296 |
47 |
| GM Global Technology Operations LLC | 15848 |
41 |
| Toyota Motor Corporation | 34698 |
34 |
| Cummins Inc. | 2601 |
33 |
| Hitachi Construction Machinery Co., Ltd. | 2728 |
30 |
| Hyundai Motor Company | 23824 |
29 |
| Caterpillar Inc. | 10151 |
27 |
| Honda Motor Co., Ltd. | 25873 |
26 |
| Komatsu Ltd. | 4663 |
24 |
| Cummins Emission Solutions, Inc. | 570 |
24 |
| Hino Motors, Ltd. | 332 |
24 |
| Mitsubishi Heavy Industries, Ltd. | 9023 |
19 |
| Sumitomo Chemical Company, Limited | 9055 |
19 |
| Purem GmbH, Formerly, Eberspächer Exhaust Technology GmbH | 311 |
18 |
| Hitachi Metals, Ltd. | 1921 |
17 |
| Other owners | 834 |