- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/34 - Polyvinylidene fluoride
Patent holdings for IPC class B01D 71/34
Total number of patents in this class: 765
10-year publication summary
|
57
|
51
|
74
|
79
|
60
|
61
|
59
|
27
|
31
|
26
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 7096 |
52 |
| Asahi Kasei Kabushiki Kaisha | 2828 |
41 |
| Arkema Inc. | 1060 |
19 |
| Arkema France | 4238 |
16 |
| Nitto Denko Corporation | 8526 |
13 |
| W. L. Gore & Associates, Inc. | 2719 |
11 |
| Kuraray Co., Ltd. | 3589 |
10 |
| Solvay Specialty Polymers Italy S.p.A. | 656 |
10 |
| Centre National de La Recherche Scientifique | 11016 |
9 |
| JNC Corporation | 1548 |
8 |
| Tianjin Polytechnic University | 38 |
8 |
| EMD Millipore Corporation | 631 |
7 |
| FUJIFILM Corporation | 30512 |
7 |
| California Institute of Technology | 4043 |
7 |
| Daikin Industries, Ltd. | 10478 |
7 |
| Mitsubishi Rayon Co., Ltd. | 856 |
7 |
| Amogreentech Co., Ltd. | 644 |
7 |
| Solvay SA | 945 |
7 |
| Korea Advanced Institute of Science and Technology | 4664 |
6 |
| Asahi Kasei Medical Co., Ltd. | 232 |
6 |
| Other owners | 507 |