- 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: 116
10-year publication summary
|
12
|
7
|
7
|
4
|
3
|
8
|
6
|
1
|
5
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2216 |
13 |
| FUJIFILM Corporation | 29305 |
8 |
| NEC Corporation | 35521 |
5 |
| Seiko Epson Corporation | 19319 |
4 |
| Celanese Acetate LLC | 69 |
3 |
| National University Corporation Kanazawa University | 245 |
3 |
| Stora Enso Oyj | 1634 |
3 |
| Olympus Corporation | 13182 |
2 |
| The Administrators of the Tulane Educational Fund | 392 |
2 |
| Daicel Chemical Industries, Ltd. | 229 |
2 |
| Daicel Corporation | 2335 |
2 |
| Fiberlean Technologies Limited | 114 |
2 |
| FPInnovations | 245 |
2 |
| Gelesis LLC | 29 |
2 |
| GP Cellulose GmbH | 88 |
2 |
| Oji Holdings Corporation | 717 |
2 |
| UT-Battelle, LLC | 1448 |
2 |
| Virginia Tech Intellectual Properties, Inc. | 862 |
2 |
| Acetate International LLC | 63 |
2 |
| Betulium Oy | 17 |
2 |
| Other owners | 51 |