- 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: 538
10-year publication summary
|
38
|
39
|
35
|
42
|
41
|
27
|
47
|
31
|
42
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6936 |
21 |
| Sartorius Stedim Biotech GmbH | 831 |
20 |
| Fresenius Medical Care Deutschland GmbH | 2151 |
18 |
| NGK Insulators, Ltd. | 4955 |
17 |
| EMD Millipore Corporation | 649 |
16 |
| Nitto Denko Corporation | 8231 |
14 |
| Gambro Lundia AB | 1367 |
14 |
| Nanyang Technological University | 2006 |
12 |
| Asahi Kasei Medical Co., Ltd. | 267 |
11 |
| Kurita Water Industries Ltd. | 1194 |
10 |
| Mitsubishi Rayon Co., Ltd. | 909 |
8 |
| Entegris, Inc. | 1868 |
8 |
| Doosan Heavy Industries & Construction Co., Ltd. | 581 |
7 |
| King Abdullah University of Science and Technology | 1778 |
7 |
| Mitsubishi Heavy Industries, Ltd. | 8715 |
5 |
| Dow Global Technologies LLC | 10363 |
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 |