- 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: 733
10-year publication summary
|
42
|
57
|
51
|
53
|
72
|
60
|
58
|
58
|
72
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Entegris, Inc. | 1872 |
39 |
| Toray Industries, Inc. | 6950 |
31 |
| Teijin Limited | 1245 |
28 |
| FUJIFILM Corporation | 29437 |
24 |
| Celgard, LLC | 314 |
21 |
| PPG Industries Ohio, Inc. | 3449 |
19 |
| 3m Innovative Properties Company | 17823 |
13 |
| W. L. Gore & Associates, Inc. | 2708 |
13 |
| Nitto Denko Corporation | 8253 |
12 |
| DIC Corporation | 3801 |
12 |
| Toray Tonen Specialty Separator Godo Kaisha | 22 |
11 |
| Asahi Kasei Kabushiki Kaisha | 2677 |
9 |
| Arkema France | 4154 |
8 |
| Cornell University | 3307 |
8 |
| Hydroxsys Holdings Limited | 14 |
8 |
| LG Chem, Ltd. | 17635 |
7 |
| Mitsubishi Rayon Co., Ltd. | 907 |
7 |
| Astom Corporation | 33 |
7 |
| Daramic, LLC | 219 |
7 |
| Repligen Corporation | 285 |
7 |
| Other owners | 442 |