- All sections
- C - Chemistrymetallurgy
- C08B - Polysaccharidesderivatives thereof
- C08B 3/08 - Preparation of cellulose esters of organic acids of monobasic organic acids with three or more carbon atoms
Patent holdings for IPC class C08B 3/08
Total number of patents in this class: 84
10-year publication summary
|
7
|
8
|
3
|
12
|
8
|
4
|
10
|
11
|
1
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2109 |
21 |
| UPM-Kymmene Corporation | 1004 |
6 |
| Daicel Corporation | 2603 |
4 |
| Compagnie Generale des Etablissements Michelin | 4992 |
4 |
| Compagnie générale des établissements Michelin SCA | 2755 |
3 |
| Carlsberg A/S | 123 |
3 |
| NEC Corporation | 37563 |
2 |
| Seiko Epson Corporation | 20554 |
2 |
| FUJIFILM Corporation | 30849 |
2 |
| Konica Minolta, Inc. | 9208 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 6173 |
2 |
| Kaneka Corporation | 4841 |
2 |
| Stora Enso Oyj | 1660 |
2 |
| Agc, Inc. | 5686 |
2 |
| Procter & Gamble International Operations SA | 135 |
1 |
| Eastman Kodak Company | 2562 |
1 |
| Konica Minolta Advanced Layers, Inc. | 217 |
1 |
| Konica Minolta Opto, Inc. | 882 |
1 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 386 |
1 |
| Fiberlean Technologies Limited | 98 |
1 |
| Other owners | 21 |