- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 65/00 - Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
Patent holdings for IPC class B01D 65/00
Total number of patents in this class: 627
10-year publication summary
|
43
|
54
|
42
|
32
|
40
|
33
|
35
|
29
|
26
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sartorius Stedim Biotech GmbH | 823 |
21 |
| Nitto Denko Corporation | 8169 |
17 |
| NGK Insulators, Ltd. | 4900 |
14 |
| Gambro Lundia AB | 1361 |
14 |
| EMD Millipore Corporation | 646 |
13 |
| Toray Industries, Inc. | 6867 |
13 |
| Dow Global Technologies LLC | 10328 |
10 |
| Entegris, Inc. | 1854 |
10 |
| FUJIFILM Manufacturing Europe B.V. | 268 |
10 |
| BL Technologies, Inc. | 828 |
8 |
| Kolon Industries, Inc. | 1634 |
8 |
| Kubota Corporation | 3709 |
8 |
| MANN+HUMMEL GmbH | 1751 |
8 |
| General Electric Company | 13816 |
6 |
| Sumitomo Chemical Company, Limited | 8998 |
6 |
| Henkel AG & Co. KGaA | 10424 |
6 |
| nanostone water, inc. | 28 |
6 |
| Organo Corporation | 452 |
6 |
| Blue Foot Membranes NV | 19 |
6 |
| Cytiva US LLC | 181 |
6 |
| Other owners | 431 |