- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 65/10 - Testing of membranes or membrane apparatus; Detecting or repairing leaks
Patent holdings for IPC class B01D 65/10
Total number of patents in this class: 502
10-year publication summary
|
22
|
38
|
39
|
35
|
42
|
41
|
27
|
46
|
31
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sartorius Stedim Biotech GmbH | 774 |
20 |
| EMD Millipore Corporation | 657 |
16 |
| NGK Insulators, Ltd. | 4589 |
16 |
| Fresenius Medical Care Deutschland GmbH | 2100 |
16 |
| Nitto Denko Corporation | 7879 |
14 |
| Toray Industries, Inc. | 6652 |
14 |
| Asahi Kasei Medical Co., Ltd. | 308 |
14 |
| Gambro Lundia AB | 1383 |
12 |
| Nanyang Technological University | 1739 |
12 |
| Kurita Water Industries Ltd. | 1110 |
10 |
| Mitsubishi Rayon Co., Ltd. | 1003 |
8 |
| King Abdullah University of Science and Technology | 1703 |
8 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
7 |
| Entegris, Inc. | 1736 |
7 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
5 |
| Dow Global Technologies LLC | 10147 |
5 |
| 1934612 Ontario Inc. | 22 |
5 |
| Arstroma Co., Ltd. | 10 |
5 |
| Korea East-West Power Co., Ltd. | 29 |
5 |
| Korea South-East Power Co., Ltd. | 33 |
5 |
| Other owners | 298 |