- 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: 458
10-year publication summary
|
48
|
48
|
36
|
51
|
23
|
18
|
26
|
19
|
10
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29713 |
26 |
| W. L. Gore & Associates, Inc. | 2733 |
23 |
| Compact Membrane Systems, Inc. | 52 |
20 |
| Toray Industries, Inc. | 7006 |
18 |
| Solvay Specialty Polymers Italy S.p.A. | 758 |
16 |
| Nitto Denko Corporation | 8346 |
15 |
| Sumitomo Electric Fine Polymer, Inc. | 201 |
15 |
| Membrane Technology and Research, Inc. | 92 |
14 |
| Asahi Kasei Kabushiki Kaisha | 2705 |
12 |
| Entegris, Inc. | 1901 |
10 |
| Daikin Industries, Ltd. | 10112 |
9 |
| FUJIFILM Manufacturing Europe B.V. | 259 |
9 |
| LG Chem, Ltd. | 17680 |
8 |
| Sumitomo Chemical Company, Limited | 9092 |
8 |
| Pall Corporation | 335 |
8 |
| 3m Innovative Properties Company | 17762 |
7 |
| Sumitomo Electric Industries, Ltd. | 15668 |
7 |
| Uop LLC | 4247 |
6 |
| Arkema Inc. | 1069 |
6 |
| Centre National de La Recherche Scientifique | 10595 |
5 |
| Other owners | 216 |