- All sections
- B - Performing operations; transporting
- 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: 449
10-year publication summary
|
50
|
50
|
48
|
38
|
52
|
25
|
20
|
25
|
20
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 27102 |
26 |
| W. L. Gore & Associates, Inc. | 2600 |
22 |
| Toray Industries, Inc. | 6652 |
18 |
| Compact Membrane Systems, Inc. | 43 |
18 |
| Solvay Specialty Polymers Italy S.p.A. | 704 |
16 |
| Membrane Technology and Research, Inc. | 92 |
14 |
| Sumitomo Electric Fine Polymer, Inc. | 202 |
14 |
| Nitto Denko Corporation | 7879 |
13 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
12 |
| Sumitomo Chemical Company, Limited | 8808 |
9 |
| Entegris, Inc. | 1736 |
9 |
| FUJIFILM Manufacturing Europe B.V. | 271 |
9 |
| LG Chem, Ltd. | 17205 |
8 |
| Daikin Industries, Ltd. | 9495 |
8 |
| 3m Innovative Properties Company | 18406 |
7 |
| Pall Corporation | 392 |
7 |
| Sumitomo Electric Industries, Ltd. | 14131 |
6 |
| Uop LLC | 4083 |
6 |
| Arkema Inc. | 1075 |
6 |
| Donaldson Company, Inc. | 1513 |
6 |
| Other owners | 215 |