- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
Patent holdings for IPC class B01D 69/02
Total number of patents in this class: 2916
10-year publication summary
|
188
|
209
|
202
|
288
|
297
|
295
|
333
|
366
|
328
|
102
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6652 |
140 |
| FUJIFILM Corporation | 27102 |
81 |
| Nitto Denko Corporation | 7879 |
56 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
45 |
| Entegris, Inc. | 1736 |
42 |
| FUJIFILM Manufacturing Europe B.V. | 271 |
42 |
| King Abdullah University of Science and Technology | 1703 |
40 |
| NGK Insulators, Ltd. | 4589 |
38 |
| W. L. Gore & Associates, Inc. | 2600 |
38 |
| The Regents of the University of California | 18943 |
35 |
| Dow Global Technologies LLC | 10147 |
34 |
| Saudi Arabian Oil Company | 11322 |
30 |
| BASF SE | 19740 |
27 |
| Gambro Lundia AB | 1383 |
27 |
| LG Chem, Ltd. | 17205 |
26 |
| Asahi Kasei Medical Co., Ltd. | 308 |
26 |
| National University of Singapore | 2228 |
25 |
| 3m Innovative Properties Company | 18406 |
23 |
| Sartorius Stedim Biotech GmbH | 774 |
23 |
| Uop LLC | 4083 |
21 |
| Other owners | 2097 |