- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01N - Gas-flow silencers or exhaust apparatus for machines or engines in general; gas-flow silencers or exhaust apparatus for internal-combustion engines
- F01N 3/18 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
Patent holdings for IPC class F01N 3/18
Total number of patents in this class: 438
10-year publication summary
|
60
|
37
|
27
|
20
|
27
|
21
|
11
|
16
|
11
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Isuzu Motors Limited | 2158 |
44 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
41 |
| Denso Corporation | 23338 |
21 |
| Cummins Emission Solutions, Inc. | 480 |
19 |
| Toyota Motor Corporation | 28582 |
15 |
| Bosch Corporation | 404 |
15 |
| Komatsu Ltd. | 4265 |
14 |
| Ford Global Technologies, LLC | 19702 |
13 |
| Cummins Inc. | 2369 |
13 |
| Nissan Diesel Motor Co., Ltd. | 58 |
12 |
| Hino Motors, Ltd. | 370 |
9 |
| Johnson Matthey Public Limited Company | 1852 |
9 |
| Caterpillar Inc. | 8877 |
8 |
| Tenneco Automotive Operating Company Inc. | 658 |
8 |
| Hitachi Construction Machinery Co., Ltd. | 2498 |
7 |
| Robert Bosch GmbH | 40953 |
7 |
| Hyundai Motor Company | 19021 |
7 |
| Yanmar Co., Ltd. | 1479 |
6 |
| Honda Motor Co., Ltd. | 24537 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
5 |
| Other owners | 160 |