- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/26 - Polyalkenes
Patent holdings for IPC class B01D 71/26
Total number of patents in this class: 773
10-year publication summary
|
57
|
51
|
53
|
72
|
62
|
59
|
58
|
73
|
58
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Entegris, Inc. | 1946 |
43 |
| Toray Industries, Inc. | 7014 |
33 |
| Teijin Limited | 1259 |
28 |
| FUJIFILM Corporation | 30010 |
24 |
| Celgard, LLC | 319 |
23 |
| PPG Industries Ohio, Inc. | 3389 |
19 |
| 3m Innovative Properties Company | 17614 |
14 |
| Nitto Denko Corporation | 8399 |
14 |
| W. L. Gore & Associates, Inc. | 2718 |
14 |
| Asahi Kasei Kabushiki Kaisha | 2743 |
13 |
| DIC Corporation | 3889 |
12 |
| Toray Tonen Specialty Separator Godo Kaisha | 22 |
11 |
| LG Chem, Ltd. | 17741 |
8 |
| Arkema France | 4172 |
8 |
| Cornell University | 3377 |
8 |
| Hydroxsys Holdings Limited | 14 |
8 |
| Mitsubishi Rayon Co., Ltd. | 881 |
7 |
| Mitsubishi Chemical Corporation | 4661 |
7 |
| Astom Corporation | 36 |
7 |
| Celanese International Corporation | 914 |
7 |
| Other owners | 465 |