- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/48 - Sulfur compounds
Patent holdings for IPC class B01D 53/48
Total number of patents in this class: 508
10-year publication summary
|
37
|
54
|
48
|
30
|
22
|
28
|
27
|
28
|
19
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13206 |
30 |
| Uop LLC | 4238 |
27 |
| Shell Internationale Research Maatschappij B.V. | 3539 |
12 |
| Research Triangle Institute | 405 |
12 |
| ThermoChem Recovery International, Inc. | 99 |
10 |
| NOx II, Ltd. | 48 |
9 |
| China Petroleum & Chemical Corporation | 1908 |
6 |
| Ecolab USA Inc. | 5499 |
6 |
| Shell Oil Company | 2139 |
5 |
| Fluor Technologies Corporation | 376 |
5 |
| International Business Machines Corporation | 61287 |
4 |
| BASF Corporation | 1715 |
4 |
| Battelle Memorial Institute | 2491 |
4 |
| Gas Technology Institute | 353 |
4 |
| Huaneng Clean Energy Research Institute | 440 |
4 |
| NexoSolutions LLC | 4 |
4 |
| Praxair Technology, Inc. | 1293 |
4 |
| Streamline Innovations, Inc. | 61 |
4 |
| Baker Hughes Holdings LLC | 3005 |
4 |
| General Electric Company | 13808 |
3 |
| Other owners | 347 |