- 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 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
Patent holdings for IPC class F01N 3/00
Total number of patents in this class: 2750
10-year publication summary
|
218
|
110
|
91
|
88
|
85
|
66
|
55
|
39
|
25
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ford Global Technologies, LLC | 21296 |
176 |
| Toyota Motor Corporation | 34698 |
169 |
| GM Global Technology Operations LLC | 15848 |
152 |
| Cummins Inc. | 2601 |
127 |
| Caterpillar Inc. | 10151 |
100 |
| Isuzu Motors Limited | 2307 |
89 |
| Cummins Emission Solutions, Inc. | 570 |
84 |
| Vitesco Technologies GmbH | 2404 |
73 |
| Hyundai Motor Company | 23824 |
59 |
| Denso Corporation | 25232 |
58 |
| International Engine Intellectual Property Company, LLC | 465 |
53 |
| Robert Bosch GmbH | 43631 |
45 |
| Continental Automotive GmbH | 4617 |
44 |
| Tenneco Automotive Operating Company Inc. | 458 |
43 |
| Honda Motor Co., Ltd. | 25873 |
37 |
| Cummins IP, Inc. | 155 |
30 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12517 |
30 |
| Tenneco Automotive Operating Company LLC | 199 |
29 |
| Komatsu Ltd. | 4663 |
28 |
| Cummins Filtration IP, Inc. | 624 |
28 |
| Other owners | 1296 |