- All sections
- C - Chemistry; metallurgy
- C08B - Polysaccharides; derivatives 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: 115
10-year publication summary
|
7
|
12
|
7
|
7
|
4
|
3
|
8
|
5
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2239 |
14 |
| FUJIFILM Corporation | 27102 |
8 |
| NEC Corporation | 32703 |
4 |
| Celanese Acetate LLC | 81 |
4 |
| Daicel Chemical Industries, Ltd. | 288 |
4 |
| Seiko Epson Corporation | 18724 |
3 |
| FPInnovations | 259 |
3 |
| Stora Enso Oyj | 1504 |
3 |
| Olympus Corporation | 13667 |
2 |
| Konica Minolta Opto, Inc. | 1179 |
2 |
| The Administrators of the Tulane Educational Fund | 368 |
2 |
| Fiberlean Technologies Limited | 116 |
2 |
| Gelesis LLC | 32 |
2 |
| GP Cellulose GmbH | 98 |
2 |
| National University Corporation Kanazawa University | 243 |
2 |
| Oji Holdings Corporation | 660 |
2 |
| UT-Battelle, LLC | 1333 |
2 |
| Virginia Tech Intellectual Properties, Inc. | 772 |
2 |
| Acetate International LLC | 63 |
2 |
| Betulium Oy | 17 |
2 |
| Other owners | 48 |