- All sections
- C - Chemistrymetallurgy
- C08B - Polysaccharidesderivatives thereof
- C08B 5/00 - Preparation of cellulose esters of inorganic acids
Patent holdings for IPC class C08B 5/00
Total number of patents in this class: 120
10-year publication summary
|
4
|
5
|
14
|
15
|
14
|
14
|
4
|
2
|
1
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Oji Holdings Corporation | 733 |
50 |
| Daio Paper Corporation | 1389 |
6 |
| Nippon Paper Industries Co., Ltd. | 835 |
6 |
| Toyo Seikan Group Holdings, Ltd. | 847 |
4 |
| Stora Enso Oyj | 1660 |
3 |
| Torcitura Padana S.p.A. | 5 |
3 |
| Zanolo S.p.A. | 9 |
3 |
| ARC Medical Devices, Inc. | 15 |
2 |
| Katayama Chemical, Inc. | 35 |
2 |
| Lion Corporation | 740 |
2 |
| The University of Tokyo | 4229 |
2 |
| Zhejiang Sci-Tech University | 92 |
2 |
| Betulium Oy | 16 |
2 |
| DKS Co. Ltd. | 202 |
2 |
| Nouryon Chemicals International B.V. | 610 |
2 |
| Dow Global Technologies Inc. | 799 |
1 |
| Mitsubishi Rayon Co., Ltd. | 902 |
1 |
| Mitsubishi Chemical Corporation | 4585 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5022 |
1 |
| Agency for Science, Technology and Research | 3659 |
1 |
| Other owners | 24 |