- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 63/00 - Apparatus in general for separation processes using semi-permeable membranes
Patent holdings for IPC class B01D 63/00
Total number of patents in this class: 998
10-year publication summary
|
76
|
79
|
46
|
43
|
46
|
36
|
27
|
36
|
33
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6931 |
66 |
| Nitto Denko Corporation | 8217 |
55 |
| Kubota Corporation | 3883 |
21 |
| FUJIFILM Corporation | 29305 |
15 |
| NGK Insulators, Ltd. | 4941 |
14 |
| Uop LLC | 4239 |
13 |
| Mitsubishi Rayon Co., Ltd. | 915 |
12 |
| NOK Corporation | 2215 |
12 |
| EMD Millipore Corporation | 649 |
11 |
| Sumitomo Chemical Company, Limited | 9040 |
11 |
| Meidensha Corporation | 880 |
10 |
| LG Chem, Ltd. | 17598 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 8694 |
9 |
| Asahi Kasei Kabushiki Kaisha | 2654 |
9 |
| Kolon Industries, Inc. | 1671 |
9 |
| Sumitomo Electric Industries, Ltd. | 15428 |
8 |
| Asahi Kasei Chemicals Corporation | 683 |
8 |
| Fresenius Medical Care Deutschland GmbH | 2149 |
8 |
| Evoqua Water Technologies LLC | 915 |
7 |
| Tosoh Corporation | 1282 |
7 |
| Other owners | 684 |