- 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: 437
10-year publication summary
|
22
|
34
|
31
|
38
|
42
|
28
|
33
|
36
|
30
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6950 |
12 |
| Repligen Corporation | 285 |
12 |
| Evoqua Water Technologies LLC | 917 |
11 |
| Sartorius Stedim Biotech GmbH | 831 |
10 |
| BL Technologies, Inc. | 835 |
9 |
| Genentech, Inc. | 3976 |
7 |
| Fenwal, Inc. | 670 |
7 |
| Cytiva Sweden AB | 763 |
7 |
| Amgen Inc. | 4076 |
6 |
| Massachusetts Institute of Technology | 10062 |
6 |
| The Automation Partnership (Cambridge) Limited | 75 |
6 |
| Gambro Lundia AB | 1379 |
6 |
| SPF Innovations, LLC | 13 |
6 |
| Global Algae Technology, LLC | 20 |
6 |
| BP Exploration Operating Company Limited | 270 |
5 |
| Chugai Seiyaku Kabushiki Kaisha | 1362 |
5 |
| GE Healthcare Bio-Sciences AB | 541 |
5 |
| Genzyme Corporation | 1262 |
5 |
| Organo Corporation | 472 |
5 |
| EMD Millipore Corporation | 650 |
4 |
| Other owners | 297 |