- All sections
- C - Chemistrymetallurgy
- C08B - Polysaccharidesderivatives thereof
- C08B 3/00 - Preparation of cellulose esters of organic acids
Patent holdings for IPC class C08B 3/00
Total number of patents in this class: 112
10-year publication summary
|
7
|
7
|
4
|
3
|
8
|
7
|
1
|
6
|
4
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2107 |
13 |
| NEC Corporation | 37589 |
5 |
| Seiko Epson Corporation | 20575 |
4 |
| FUJIFILM Corporation | 30866 |
4 |
| National University Corporation Kanazawa University | 264 |
3 |
| Stora Enso Oyj | 1664 |
3 |
| Société des Produits Nestlé S.A. | 10060 |
2 |
| Olympus Corporation | 12891 |
2 |
| Celanese Acetate LLC | 67 |
2 |
| Daicel Corporation | 2606 |
2 |
| FPInnovations | 224 |
2 |
| Gelesis LLC | 27 |
2 |
| GP Cellulose GmbH | 85 |
2 |
| Oji Holdings Corporation | 813 |
2 |
| Virginia Tech Intellectual Properties, Inc. | 985 |
2 |
| Acetate International LLC | 64 |
2 |
| Finecell Sweden AB | 3 |
2 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6109 |
2 |
| Finecellox AB | 3 |
2 |
| International Business Machines Corporation | 62897 |
1 |
| Other owners | 53 |