- Sections
- B - Techniques industrielles; transports
- B01D - Séparation
- B01D 71/52 - Polyéthers
Détention brevets de la classe B01D 71/52
Brevets de cette classe: 422
Historique des publications depuis 10 ans
|
38
|
28
|
61
|
35
|
53
|
44
|
24
|
49
|
36
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Toray Industries, Inc. | 6652 |
18 |
| Nitto Denko Corporation | 7879 |
17 |
| FUJIFILM Corporation | 27102 |
15 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
15 |
| Toyobo Co., Ltd. | 2286 |
15 |
| BASF SE | 19740 |
14 |
| Saudi Arabian Oil Company | 11322 |
14 |
| FUJIFILM Manufacturing Europe B.V. | 271 |
12 |
| 3m Innovative Properties Company | 18406 |
10 |
| SABIC Global Technologies B.V. | 4044 |
9 |
| SHPP Global Technologies B.V. | 1045 |
7 |
| Centre National de La Recherche Scientifique | 9632 |
6 |
| Sumitomo Chemical Company, Limited | 8808 |
6 |
| Air Liquide Advanced Technologies U.S. LLC | 90 |
6 |
| Solvay Specialty Polymers USA, LLC | 521 |
6 |
| Hydroxsys Holdings Limited | 13 |
6 |
| Solventum Intellectual Properties Company | 2681 |
6 |
| Uop LLC | 4083 |
5 |
| Virginia Tech Intellectual Properties, Inc. | 772 |
5 |
| Applied BioMimetic A/S | 27 |
5 |
| Autres propriétaires | 225 |