- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/28 - Polymers of vinyl aromatic compounds
Patent holdings for IPC class B01D 71/28
Total number of patents in this class: 305
10-year publication summary
|
19
|
24
|
35
|
32
|
22
|
22
|
24
|
20
|
15
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30512 |
24 |
| Cornell University | 3421 |
9 |
| 3m Innovative Properties Company | 17488 |
8 |
| Astom Corporation | 37 |
8 |
| FUJIFILM Manufacturing Europe B.V. | 248 |
7 |
| Sumitomo Chemical Company, Limited | 8996 |
6 |
| Uop LLC | 4393 |
6 |
| Toray Industries, Inc. | 7096 |
6 |
| Gambro Lundia AB | 1385 |
6 |
| The Regents of the University of Colorado, a body corporate | 2798 |
6 |
| Yale University | 2527 |
6 |
| Rensselaer Polytechnic Institute | 850 |
5 |
| The Regents of the University of California | 20720 |
4 |
| W. L. Gore & Associates, Inc. | 2719 |
4 |
| The Board of Trustees of the University of Alabama | 432 |
4 |
| University of Washington | 2443 |
4 |
| Merck Millipore Ltd. | 38 |
4 |
| International Business Machines Corporation | 62621 |
3 |
| Nitto Denko Corporation | 8526 |
3 |
| Toray Advanced Materials Korea Inc. | 296 |
3 |
| Other owners | 179 |