- 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: 752
10-year publication summary
|
42
|
57
|
51
|
53
|
72
|
60
|
59
|
58
|
72
|
50
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Entegris, Inc. | 1903 |
41 |
| Toray Industries, Inc. | 7000 |
33 |
| Teijin Limited | 1260 |
28 |
| FUJIFILM Corporation | 29714 |
24 |
| Celgard, LLC | 319 |
23 |
| PPG Industries Ohio, Inc. | 3436 |
19 |
| 3m Innovative Properties Company | 17755 |
14 |
| Nitto Denko Corporation | 8337 |
13 |
| W. L. Gore & Associates, Inc. | 2735 |
13 |
| Asahi Kasei Kabushiki Kaisha | 2706 |
12 |
| DIC Corporation | 3825 |
12 |
| Toray Tonen Specialty Separator Godo Kaisha | 22 |
11 |
| Arkema France | 4175 |
8 |
| Cornell University | 3347 |
8 |
| Hydroxsys Holdings Limited | 14 |
8 |
| LG Chem, Ltd. | 17674 |
7 |
| Mitsubishi Rayon Co., Ltd. | 900 |
7 |
| Mitsubishi Chemical Corporation | 4582 |
7 |
| Astom Corporation | 34 |
7 |
| Daramic, LLC | 217 |
7 |
| Other owners | 450 |