- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 61/22 - Controlling or regulating
Patent holdings for IPC class B01D 61/22
Total number of patents in this class: 454
10-year publication summary
|
34
|
33
|
41
|
44
|
28
|
33
|
38
|
30
|
28
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Repligen Corporation | 297 |
14 |
| Toray Industries, Inc. | 7113 |
12 |
| Sartorius Stedim Biotech GmbH | 875 |
10 |
| BL Technologies, Inc. | 843 |
9 |
| Genentech, Inc. | 4104 |
8 |
| Evoqua Water Technologies LLC | 930 |
8 |
| Fenwal, Inc. | 700 |
7 |
| Cytiva Sweden AB | 789 |
7 |
| Amgen Inc. | 4427 |
6 |
| Massachusetts Institute of Technology | 10251 |
6 |
| The Automation Partnership (Cambridge) Limited | 88 |
6 |
| Gambro Lundia AB | 1389 |
6 |
| SPF Innovations, LLC | 11 |
6 |
| Global Algae Technology, LLC | 22 |
6 |
| BP Exploration Operating Company Limited | 257 |
5 |
| Chugai Seiyaku Kabushiki Kaisha | 1423 |
5 |
| Daicel Corporation | 2523 |
5 |
| GE Healthcare Bio-Sciences AB | 508 |
5 |
| Genzyme Corporation | 1368 |
5 |
| Kurita Water Industries Ltd. | 1283 |
5 |
| Other owners | 313 |