- Sections
- C - Chimiemétallurgie
- C01B - Éléments non métalliquesleurs composés
- C01B 31/08 - Charbon actif
Détention brevets de la classe C01B 31/08
Brevets de cette classe: 442
Historique des publications depuis 10 ans
|
20
|
8
|
7
|
6
|
5
|
0
|
0
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Corning Incorporated | 10374 |
35 |
| Blucher GmbH | 181 |
14 |
| British American Tobacco (Investments) Limited | 1015 |
10 |
| Kuraray Co., Ltd. | 3563 |
10 |
| Carbon Technology Holdings, LLC | 225 |
6 |
| Sony Corporation | 30634 |
5 |
| Hyundai Motor Company | 23166 |
5 |
| Albemarle Corporation | 482 |
5 |
| Pneumatic Processing Technologies, LLC | 8 |
5 |
| Saudi Arabian Oil Company | 13814 |
5 |
| Philip Morris Products S.A. | 7853 |
4 |
| Dow Global Technologies LLC | 10696 |
4 |
| Calgon Carbon Corporation | 248 |
4 |
| Inha-Industry Partnership Institute | 173 |
4 |
| Nichias Corporation | 397 |
4 |
| William Marsh Rice University | 1056 |
4 |
| Fujitsu Limited | 17364 |
3 |
| Korea Advanced Institute of Science and Technology | 4505 |
3 |
| Arcactive Limited | 28 |
3 |
| Biogenic Reagents LLC | 11 |
3 |
| Autres propriétaires | 306 |