- 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: 761
10-year publication summary
|
56
|
49
|
74
|
73
|
58
|
59
|
58
|
27
|
30
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 7016 |
53 |
| Asahi Kasei Kabushiki Kaisha | 2745 |
40 |
| Arkema Inc. | 1057 |
19 |
| Arkema France | 4169 |
16 |
| Nitto Denko Corporation | 8411 |
14 |
| W. L. Gore & Associates, Inc. | 2716 |
12 |
| EMD Millipore Corporation | 640 |
10 |
| Kuraray Co., Ltd. | 3559 |
10 |
| Solvay Specialty Polymers Italy S.p.A. | 666 |
10 |
| Centre National de La Recherche Scientifique | 10812 |
9 |
| JNC Corporation | 1517 |
8 |
| Kureha Corporation | 1040 |
8 |
| Tianjin Polytechnic University | 37 |
8 |
| FUJIFILM Corporation | 30063 |
7 |
| California Institute of Technology | 4015 |
7 |
| Daikin Industries, Ltd. | 10223 |
7 |
| Mitsubishi Rayon Co., Ltd. | 880 |
7 |
| Amogreentech Co., Ltd. | 624 |
7 |
| Asahi Kasei Medical Co., Ltd. | 234 |
7 |
| Solvay SA | 967 |
7 |
| Other owners | 495 |