- Sections
- B - Techniques industriellestransports
- B01D - Séparation
- B01D 69/12 - Membranes compositesMembranes ultraminces
Détention brevets de la classe B01D 69/12
Brevets de cette classe: 3621
Historique des publications depuis 10 ans
|
279
|
315
|
301
|
297
|
298
|
284
|
292
|
253
|
274
|
136
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Toray Industries, Inc. | 6935 |
207 |
| FUJIFILM Corporation | 29329 |
180 |
| Nitto Denko Corporation | 8217 |
142 |
| NGK Insulators, Ltd. | 4945 |
130 |
| FUJIFILM Manufacturing Europe B.V. | 269 |
65 |
| LG Chem, Ltd. | 17615 |
59 |
| Entegris, Inc. | 1867 |
58 |
| W. L. Gore & Associates, Inc. | 2683 |
50 |
| National University of Singapore | 2443 |
49 |
| Sumitomo Chemical Company, Limited | 9046 |
48 |
| Dow Global Technologies LLC | 10353 |
46 |
| Asahi Kasei Kabushiki Kaisha | 2660 |
40 |
| Uop LLC | 4244 |
37 |
| Mitsubishi Chemical Corporation | 4496 |
31 |
| Saudi Arabian Oil Company | 13044 |
31 |
| 3m Innovative Properties Company | 17852 |
28 |
| Sumitomo Electric Industries, Ltd. | 15443 |
26 |
| Aquaporin A/S | 74 |
26 |
| King Fahd University of Petroleum and Minerals | 1173 |
25 |
| Trustees of Tufts College | 873 |
25 |
| Autres propriétaires | 2318 |