- All sections
- B - Performing operations; transporting
- 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: 604
10-year publication summary
|
61
|
43
|
54
|
42
|
32
|
40
|
32
|
35
|
27
|
6
|
| 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 |
21 |
| Nitto Denko Corporation | 7879 |
17 |
| EMD Millipore Corporation | 657 |
13 |
| NGK Insulators, Ltd. | 4589 |
13 |
| Dow Global Technologies LLC | 10147 |
13 |
| Gambro Lundia AB | 1383 |
12 |
| Toray Industries, Inc. | 6652 |
11 |
| FUJIFILM Manufacturing Europe B.V. | 271 |
10 |
| Entegris, Inc. | 1736 |
9 |
| Kolon Industries, Inc. | 1506 |
8 |
| Kubota Corporation | 3054 |
8 |
| MANN+HUMMEL GmbH | 1682 |
8 |
| BL Technologies, Inc. | 831 |
7 |
| General Electric Company | 18133 |
6 |
| Sumitomo Chemical Company, Limited | 8808 |
6 |
| nanostone water, inc. | 24 |
6 |
| Cytiva US LLC | 143 |
6 |
| FUJIFILM Corporation | 27102 |
5 |
| Murata Manufacturing Co., Ltd. | 22355 |
5 |
| Henkel AG & Co. KGaA | 10129 |
5 |
| Other owners | 415 |