- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 65/10 - Testing of membranes or membrane apparatusDetecting or repairing leaks
Patent holdings for IPC class B01D 65/10
Total number of patents in this class: 537
10-year publication summary
|
34
|
37
|
34
|
40
|
41
|
25
|
44
|
31
|
41
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6950 |
21 |
| Sartorius Stedim Biotech GmbH | 831 |
20 |
| Fresenius Medical Care Deutschland GmbH | 2155 |
18 |
| NGK Insulators, Ltd. | 4968 |
17 |
| EMD Millipore Corporation | 650 |
16 |
| Nitto Denko Corporation | 8253 |
14 |
| Gambro Lundia AB | 1379 |
14 |
| Nanyang Technological University | 2015 |
12 |
| Asahi Kasei Medical Co., Ltd. | 266 |
10 |
| Kurita Water Industries Ltd. | 1195 |
10 |
| Mitsubishi Rayon Co., Ltd. | 907 |
8 |
| Entegris, Inc. | 1872 |
8 |
| Doosan Heavy Industries & Construction Co., Ltd. | 581 |
7 |
| King Abdullah University of Science and Technology | 1787 |
7 |
| Mitsubishi Heavy Industries, Ltd. | 8752 |
5 |
| Dow Global Technologies LLC | 10360 |
5 |
| Arstroma Co., Ltd. | 10 |
5 |
| Korea East-West Power Co., Ltd. | 31 |
5 |
| Korea South-East Power Co., Ltd. | 36 |
5 |
| Korea Western Power Co., Ltd. | 44 |
5 |
| Other owners | 325 |