- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/54 - Nitrogen compounds
Patent holdings for IPC class B01D 53/54
Total number of patents in this class: 174
10-year publication summary
|
20
|
13
|
5
|
4
|
8
|
10
|
5
|
9
|
18
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| PanAsia Co., Ltd. | 120 |
5 |
| NexoSolutions LLC | 4 |
4 |
| Stamicarbon B.V. | 319 |
4 |
| Carbonquest, Inc. | 44 |
4 |
| Shell Internationale Research Maatschappij B.V. | 3409 |
3 |
| The Board of Trustees of the Leland Stanford Junior University | 6644 |
3 |
| Chevron U.S.A. Inc. | 4134 |
3 |
| Air Products and Chemicals, Inc. | 1469 |
3 |
| Casale SA | 633 |
3 |
| Steen Research, LLC | 19 |
3 |
| ThyssenKrupp AG | 3423 |
3 |
| GE Infrastructure Technology, LLC | 6171 |
3 |
| Svante Technologies Inc. | 26 |
3 |
| ExxonMobil Research And Engineering Company | 2425 |
2 |
| Applied Materials, Inc. | 20363 |
2 |
| Babcock-Hitachi Kabushiki Kaisha | 93 |
2 |
| Energy Recovery, Inc. | 191 |
2 |
| Hatch Ltd. | 220 |
2 |
| INEOS Europe AG | 212 |
2 |
| Inventys Thermal Technologies Inc. | 22 |
2 |
| Other owners | 116 |