- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 71/26 - Polyalkenes
Patent holdings for IPC class B01D 71/26
Total number of patents in this class: 648
10-year publication summary
|
46
|
43
|
57
|
53
|
54
|
75
|
59
|
58
|
56
|
21
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Entegris, Inc. | 1736 |
33 |
| FUJIFILM Corporation | 27102 |
24 |
| Toray Industries, Inc. | 6652 |
24 |
| Teijin Limited | 1216 |
24 |
| PPG Industries Ohio, Inc. | 3430 |
20 |
| Celgard, LLC | 273 |
14 |
| 3m Innovative Properties Company | 18406 |
13 |
| W. L. Gore & Associates, Inc. | 2600 |
12 |
| Toray Tonen Specialty Separator Godo Kaisha | 22 |
11 |
| Nitto Denko Corporation | 7879 |
10 |
| DIC Corporation | 3597 |
10 |
| Asahi Kasei Chemicals Corporation | 809 |
9 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
9 |
| Daramic, LLC | 207 |
8 |
| LG Chem, Ltd. | 17205 |
7 |
| Mitsubishi Rayon Co., Ltd. | 1003 |
7 |
| Cornell University | 3036 |
7 |
| Tonen Chemical Corporation | 61 |
7 |
| Hydroxsys Holdings Limited | 13 |
7 |
| Arkema France | 3790 |
6 |
| Other owners | 386 |