- 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 3/24 - 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 constructional aspects of converting apparatus
Patent holdings for IPC class F01N 3/24
Total number of patents in this class: 1345
10-year publication summary
104
|
81
|
83
|
70
|
50
|
72
|
36
|
49
|
28
|
9
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
241 |
Isuzu Motors Limited | 2158 |
130 |
Yanmar Co., Ltd. | 1479 |
68 |
Hino Motors, Ltd. | 370 |
61 |
Honda Motor Co., Ltd. | 24537 |
58 |
Denso Corporation | 23338 |
43 |
Komatsu Ltd. | 4265 |
43 |
NGK Insulators, Ltd. | 4589 |
37 |
Kabushiki Kaisha Toyota Jidoshokki | 1699 |
35 |
Futaba Industrial Co., Ltd. | 296 |
33 |
Nissan Motor Co., Ltd. | 12249 |
31 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
24 |
Bosch Corporation | 404 |
20 |
Cataler Corporation | 533 |
20 |
Tenneco Automotive Operating Company Inc. | 658 |
19 |
Yamaha Hatsudoki Kabushiki Kaisha | 1998 |
19 |
Mazda Motor Corporation | 3087 |
17 |
Mitsui Mining & Smelting Co., Ltd. | 1373 |
15 |
Hitachi Construction Machinery Co., Ltd. | 2498 |
13 |
Cummins Emission Solutions, Inc. | 480 |
12 |
Other owners | 406 |