- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/56 - Nitrogen oxides
Patent holdings for IPC class B01D 53/56
Total number of patents in this class: 1655
10-year publication summary
|
86
|
105
|
60
|
90
|
97
|
67
|
68
|
65
|
80
|
46
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Johnson Matthey Public Limited Company | 1763 |
50 |
| BASF Mobile Emissions Catalysts LLC | 426 |
39 |
| Mitsubishi Heavy Industries, Ltd. | 9168 |
38 |
| Yara International ASA | 907 |
26 |
| IHI Corporation | 3527 |
25 |
| Umicore AG & Co. KG | 850 |
24 |
| Intelligent Abatement, LLC | 23 |
23 |
| Mitsubishi Power, Ltd. | 1833 |
20 |
| BASF Corporation | 1681 |
16 |
| Huaneng Clean Energy Research Institute | 511 |
15 |
| Institute of Process Engineering, Chinese Academy of Sciences | 329 |
15 |
| Casale SA | 639 |
14 |
| General Electric Technology GmbH | 1336 |
14 |
| BASF SE | 21306 |
11 |
| Chevron U.S.A. Inc. | 4159 |
11 |
| Tronox LLC | 147 |
11 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12353 |
11 |
| ThyssenKrupp AG | 3353 |
10 |
| ThyssenKrupp Industrial Solutions AG | 630 |
10 |
| Messer Industries USA, Inc. | 125 |
10 |
| Other owners | 1262 |