- Sections
- B - Techniques industriellestransports
- B01D - Séparation
- B01D 71/52 - Polyéthers
Détention brevets de la classe B01D 71/52
Brevets de cette classe: 475
Historique des publications depuis 10 ans
|
27
|
59
|
34
|
52
|
43
|
29
|
51
|
36
|
42
|
25
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Toray Industries, Inc. | 6950 |
20 |
| Toyobo Co., Ltd. | 2498 |
20 |
| BASF SE | 20940 |
18 |
| Nitto Denko Corporation | 8253 |
18 |
| FUJIFILM Corporation | 29437 |
15 |
| Asahi Kasei Kabushiki Kaisha | 2677 |
14 |
| Saudi Arabian Oil Company | 13224 |
14 |
| FUJIFILM Manufacturing Europe B.V. | 261 |
12 |
| 3m Innovative Properties Company | 17823 |
10 |
| SABIC Global Technologies B.V. | 4351 |
9 |
| Sumitomo Chemical Company, Limited | 9043 |
8 |
| Solvay Specialty Polymers USA, LLC | 587 |
8 |
| Solventum Intellectual Properties Company | 3332 |
8 |
| Hydroxsys Holdings Limited | 14 |
7 |
| SHPP Global Technologies B.V. | 1088 |
7 |
| Board of Regents, The University of Texas System | 5808 |
6 |
| Air Liquide Advanced Technologies U.S. LLC | 89 |
6 |
| Pall Corporation | 335 |
6 |
| Centre National de La Recherche Scientifique | 10464 |
5 |
| Uop LLC | 4237 |
5 |
| Autres propriétaires | 259 |