- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/34 - Chemical or biological purification of waste gases
Patent holdings for IPC class B01D 53/34
Total number of patents in this class: 1258
10-year publication summary
|
60
|
81
|
85
|
66
|
52
|
76
|
79
|
97
|
111
|
62
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 8657 |
39 |
| General Electric Technology GmbH | 1459 |
25 |
| Saudi Arabian Oil Company | 12891 |
24 |
| Uop LLC | 4216 |
19 |
| Intelligent Abatement, LLC | 23 |
19 |
| Johnson Matthey Public Limited Company | 1842 |
15 |
| Umicore AG & Co. KG | 857 |
15 |
| IFP Energies Nouvelles | 2915 |
11 |
| Mitsubishi Power, Ltd. | 1758 |
11 |
| Alstom Technology Ltd | 1111 |
10 |
| IHI Corporation | 3413 |
10 |
| BASF Mobile Emissions Catalysts LLC | 396 |
9 |
| BASF SE | 20803 |
7 |
| Honeywell International Inc. | 13562 |
7 |
| Caterpillar Inc. | 9509 |
7 |
| Babcock-Hitachi Kabushiki Kaisha | 103 |
7 |
| Edwards Limited | 790 |
7 |
| ThyssenKrupp AG | 3271 |
7 |
| Jiangnan Environmental Protection Group Inc. | 57 |
7 |
| Fuji Electric Co., Ltd. | 5114 |
6 |
| Other owners | 996 |