- 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 3/028 - 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 filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating using microwaves
Patent holdings for IPC class F01N 3/028
Total number of patents in this class: 32
10-year publication summary
|
4
|
9
|
4
|
1
|
5
|
2
|
1
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fujitsu Limited | 16854 |
7 |
| Toyota Motor Corporation | 35927 |
3 |
| Ceramex Ltd. | 18 |
2 |
| Goji Limited | 43 |
2 |
| Great Lakes Pollution Control, Inc. | 2 |
2 |
| Deere & Company | 8150 |
1 |
| NGK Insulators, Ltd. | 5200 |
1 |
| NGK Spark Plug Co., Ltd. | 872 |
1 |
| Cummins Emission Solutions, Inc. | 582 |
1 |
| EMD Corporation | 27 |
1 |
| RENAULT s.a.s. | 5377 |
1 |
| South Bank University Enterprises Ltd. | 13 |
1 |
| Southwest Research Institute | 746 |
1 |
| Tokyo ROKI Co., Ltd. | 68 |
1 |
| Yapp Automotive Parts Co., Ltd. | 15 |
1 |
| Diesekt3 Limited | 3 |
1 |
| Vitesco Technologies GmbH | 2397 |
1 |
| Gruppo Distribuzione Petroli S.r.l. | 2 |
1 |
| Terraplasma Emission Control GmbH | 1 |
1 |
| Chakr Innovation Private Limited | 5 |
1 |
| Other owners | 1 |