- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/82 - Macromolecular material not specifically provided for in a single one of groups characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
Patent holdings for IPC class B01D 71/82
Total number of patents in this class: 612
10-year publication summary
|
46
|
34
|
49
|
52
|
38
|
42
|
45
|
40
|
35
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30512 |
34 |
| FUJIFILM Manufacturing Europe B.V. | 248 |
22 |
| Toray Industries, Inc. | 7096 |
17 |
| Entegris, Inc. | 2008 |
14 |
| Saudi Arabian Oil Company | 14207 |
12 |
| The Regents of the University of California | 20720 |
11 |
| Toyobo Co., Ltd. | 2536 |
11 |
| Sumitomo Chemical Company, Limited | 8996 |
9 |
| BASF SE | 21303 |
8 |
| Nitto Denko Corporation | 8526 |
8 |
| Uop LLC | 4393 |
8 |
| Compact Membrane Systems, Inc. | 56 |
8 |
| Rensselaer Polytechnic Institute | 850 |
8 |
| LG Chem, Ltd. | 17921 |
7 |
| Council of Scientific & Industrial Research | 1445 |
7 |
| National University Corporation Kobe University | 569 |
7 |
| Gambro Lundia AB | 1385 |
6 |
| Trustees of Tufts College | 976 |
6 |
| 1s1 Energy, Inc. | 32 |
6 |
| Georgia Tech Research Corporation | 2942 |
5 |
| Other owners | 398 |