- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/32 - Polyalkenyl halides containing fluorine atoms
Patent holdings for IPC class B01D 71/32
Total number of patents in this class: 456
10-year publication summary
|
50
|
48
|
38
|
52
|
25
|
20
|
26
|
20
|
10
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29208 |
26 |
| W. L. Gore & Associates, Inc. | 2662 |
23 |
| Compact Membrane Systems, Inc. | 51 |
20 |
| Toray Industries, Inc. | 6886 |
18 |
| Solvay Specialty Polymers Italy S.p.A. | 752 |
16 |
| Sumitomo Electric Fine Polymer, Inc. | 201 |
15 |
| Nitto Denko Corporation | 8170 |
14 |
| Membrane Technology and Research, Inc. | 89 |
14 |
| Asahi Kasei Kabushiki Kaisha | 2633 |
12 |
| Entegris, Inc. | 1854 |
10 |
| Daikin Industries, Ltd. | 9951 |
9 |
| FUJIFILM Manufacturing Europe B.V. | 268 |
9 |
| LG Chem, Ltd. | 17549 |
8 |
| Sumitomo Chemical Company, Limited | 9002 |
8 |
| Pall Corporation | 335 |
8 |
| 3m Innovative Properties Company | 17842 |
7 |
| Sumitomo Electric Industries, Ltd. | 15321 |
7 |
| Uop LLC | 4207 |
6 |
| Arkema Inc. | 1058 |
6 |
| Donaldson Company, Inc. | 1595 |
6 |
| Other owners | 214 |