- 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: 263
10-year publication summary
|
34
|
29
|
23
|
14
|
37
|
23
|
17
|
18
|
14
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stora Enso Oyj | 1632 |
21 |
| GranBio Intellectual Property Holdings, LLC | 119 |
19 |
| Nippon Paper Industries Co., Ltd. | 827 |
13 |
| API Intellectual Property Holdings, LLC | 77 |
11 |
| UPM-Kymmene Corporation | 937 |
7 |
| Renmatix, Inc. | 131 |
6 |
| Yissum Research Development Company of The Hebrew University of Jerusalem Ltd. | 1349 |
6 |
| Purdue Research Foundation | 3576 |
5 |
| SixRing Inc. | 159 |
5 |
| Kaneka Corporation | 4496 |
4 |
| Case Western Reserve University | 1806 |
4 |
| Daicel Corporation | 2335 |
4 |
| Comet BioRefining Inc. | 25 |
4 |
| Kao Corporation | 4952 |
3 |
| Asahi Kasei Kabushiki Kaisha | 2644 |
3 |
| The Court of Edinburgh Napier University | 23 |
3 |
| Kemira Oyj | 1204 |
3 |
| Kyoto University | 2799 |
3 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1774 |
3 |
| Melodea Ltd. | 23 |
3 |
| Other owners | 133 |