- 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: 1625
10-year publication summary
|
102
|
86
|
105
|
60
|
90
|
97
|
66
|
68
|
63
|
46
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Johnson Matthey Public Limited Company | 1851 |
50 |
| BASF Mobile Emissions Catalysts LLC | 399 |
45 |
| Mitsubishi Heavy Industries, Ltd. | 8712 |
37 |
| Umicore AG & Co. KG | 856 |
27 |
| IHI Corporation | 3425 |
26 |
| Yara International ASA | 854 |
24 |
| Intelligent Abatement, LLC | 23 |
23 |
| Mitsubishi Power, Ltd. | 1760 |
23 |
| BASF Corporation | 1725 |
17 |
| General Electric Technology GmbH | 1368 |
14 |
| Huaneng Clean Energy Research Institute | 432 |
14 |
| Institute of Process Engineering, Chinese Academy of Sciences | 293 |
14 |
| Tronox LLC | 161 |
13 |
| Chevron U.S.A. Inc. | 3953 |
12 |
| Casale SA | 608 |
12 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12806 |
12 |
| Messer Industries USA, Inc. | 120 |
11 |
| BASF SE | 20926 |
10 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3976 |
10 |
| ThyssenKrupp Industrial Solutions AG | 631 |
10 |
| Other owners | 1221 |