- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
Patent holdings for IPC class B01D 69/02
Total number of patents in this class: 3564
10-year publication summary
|
198
|
273
|
289
|
287
|
328
|
356
|
327
|
366
|
322
|
40
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 7018 |
170 |
| FUJIFILM Corporation | 30016 |
89 |
| Nitto Denko Corporation | 8412 |
71 |
| Entegris, Inc. | 1950 |
60 |
| Asahi Kasei Kabushiki Kaisha | 2742 |
54 |
| NGK Insulators, Ltd. | 5203 |
46 |
| W. L. Gore & Associates, Inc. | 2717 |
46 |
| The Regents of the University of California | 20366 |
40 |
| King Abdullah University of Science and Technology | 1825 |
40 |
| Dow Global Technologies LLC | 10699 |
39 |
| FUJIFILM Manufacturing Europe B.V. | 253 |
39 |
| Saudi Arabian Oil Company | 13839 |
36 |
| BASF SE | 21149 |
34 |
| Gambro Lundia AB | 1357 |
29 |
| National University of Singapore | 2538 |
28 |
| Sartorius Stedim Biotech GmbH | 862 |
26 |
| LG Chem, Ltd. | 17744 |
23 |
| 3m Innovative Properties Company | 17607 |
22 |
| Solventum Intellectual Properties Company | 3346 |
22 |
| Uop LLC | 4275 |
21 |
| Other owners | 2629 |