- 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 3/05 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air
Patent holdings for IPC class F01N 3/05
Total number of patents in this class: 180
10-year publication summary
|
27
|
18
|
20
|
8
|
15
|
15
|
9
|
13
|
7
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Infrastructure Technology, LLC | 6212 |
9 |
| Bayerische Motoren Werke Aktiengesellschaft | 14278 |
6 |
| Tecogen Inc. | 35 |
6 |
| Pratt & Whitney Canada Corp. | 4716 |
5 |
| RENAULT s.a.s. | 5454 |
5 |
| Nissan Motor Co., Ltd. | 12458 |
4 |
| Caterpillar SARL | 476 |
4 |
| Discovery Energy, LLC | 380 |
4 |
| Honda Motor Co., Ltd. | 25174 |
3 |
| Toyota Motor Corporation | 31819 |
3 |
| Honeywell International Inc. | 13525 |
3 |
| Caterpillar Inc. | 9530 |
3 |
| Blue Leaf I.P., Inc. | 2816 |
3 |
| Cummins Inc. | 2572 |
3 |
| Envirochasing IP Holdings Pty Ltd | 10 |
3 |
| Kubota Corporation | 3883 |
3 |
| PACCAR Inc | 1301 |
3 |
| Tenneco Automotive Operating Company Inc. | 632 |
3 |
| ThrivalTech, LLC | 14 |
3 |
| Volvo Lastvagnar AB | 827 |
3 |
| Other owners | 101 |