- All sections
- C - Chemistrymetallurgy
- C08B - Polysaccharidesderivatives thereof
- C08B 15/08 - Fractionation of cellulose, e.g. separation of cellulose crystallites
Patent holdings for IPC class C08B 15/08
Total number of patents in this class: 258
10-year publication summary
|
34
|
29
|
23
|
14
|
37
|
23
|
17
|
16
|
13
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stora Enso Oyj | 1605 |
22 |
| GranBio Intellectual Property Holdings, LLC | 111 |
17 |
| Nippon Paper Industries Co., Ltd. | 812 |
14 |
| API Intellectual Property Holdings, LLC | 78 |
12 |
| UPM-Kymmene Corporation | 912 |
7 |
| Yissum Research Development Company of The Hebrew University of Jerusalem Ltd. | 1359 |
6 |
| Renmatix, Inc. | 131 |
5 |
| Kaneka Corporation | 4495 |
4 |
| Purdue Research Foundation | 3483 |
4 |
| Case Western Reserve University | 1774 |
4 |
| Daicel Corporation | 2247 |
4 |
| Comet BioRefining Inc. | 25 |
4 |
| Kao Corporation | 4919 |
3 |
| Asahi Kasei Kabushiki Kaisha | 2563 |
3 |
| The Court of Edinburgh Napier University | 21 |
3 |
| Daio Paper Corporation | 1390 |
3 |
| Kemira Oyj | 1211 |
3 |
| Kyoto University | 2779 |
3 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1753 |
3 |
| Melodea Ltd. | 24 |
3 |
| Other owners | 131 |