- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/50 - Sulfur oxides
Patent holdings for IPC class B01D 53/50
Total number of patents in this class: 1831
10-year publication summary
|
140
|
157
|
174
|
136
|
132
|
99
|
108
|
71
|
41
|
44
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 8715 |
131 |
| Mitsubishi Power, Ltd. | 1762 |
59 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
58 |
| Jiangnan Environmental Protection Group Inc. | 57 |
45 |
| Fuji Electric Co., Ltd. | 5140 |
41 |
| General Electric Technology GmbH | 1369 |
37 |
| Alstom Technology Ltd | 1108 |
32 |
| IHI Corporation | 3426 |
30 |
| Babcock-Hitachi Kabushiki Kaisha | 103 |
25 |
| Chiyoda Corporation | 397 |
24 |
| Intelligent Abatement, LLC | 23 |
23 |
| GE Vernova Infrastructure Technology LLC | 233 |
20 |
| NOx II, Ltd. | 48 |
19 |
| Kurita Water Industries Ltd. | 1194 |
16 |
| ARQ Solutions (es), Inc. | 58 |
16 |
| Saudi Arabian Oil Company | 13155 |
15 |
| Huaneng Clean Energy Research Institute | 437 |
14 |
| MECS, Inc. | 75 |
14 |
| Yongfeng Boyuan Industry Co. Ltd., Jiangxi Province | 21 |
14 |
| Jiangsu New Century Jiangnan Environmental Protection Inc., Ltd | 22 |
14 |
| Other owners | 1184 |