- 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: 631
10-year publication summary
|
42
|
50
|
41
|
30
|
38
|
32
|
32
|
27
|
27
|
24
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sartorius Stedim Biotech GmbH | 850 |
21 |
| Nitto Denko Corporation | 8350 |
17 |
| Gambro Lundia AB | 1355 |
15 |
| EMD Millipore Corporation | 642 |
14 |
| NGK Insulators, Ltd. | 5137 |
14 |
| Toray Industries, Inc. | 7007 |
14 |
| Dow Global Technologies LLC | 10518 |
10 |
| Entegris, Inc. | 1912 |
10 |
| FUJIFILM Manufacturing Europe B.V. | 258 |
10 |
| BL Technologies, Inc. | 838 |
8 |
| Kolon Industries, Inc. | 1713 |
8 |
| Kubota Corporation | 4046 |
8 |
| MANN+HUMMEL GmbH | 1775 |
8 |
| Cytiva US LLC | 190 |
7 |
| General Electric Company | 13861 |
6 |
| Sumitomo Chemical Company, Limited | 9110 |
6 |
| Henkel AG & Co. KGaA | 10645 |
6 |
| Organo Corporation | 506 |
6 |
| Blue Foot Membranes NV | 19 |
6 |
| FUJIFILM Corporation | 29797 |
5 |
| Other owners | 432 |