- All sections
- C - Chemistrymetallurgy
- C08B - Polysaccharidesderivatives thereof
- C08B 3/26 - Isolation of the cellulose ester
Patent holdings for IPC class C08B 3/26
Total number of patents in this class: 10
10-year publication summary
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0
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0
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0
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1
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1
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0
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2
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0
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2
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Chemical Co., Ltd. | 6143 |
2 |
| Celanese Acetate LLC | 67 |
2 |
| Celanese International Corporation | 912 |
2 |
| NEC Corporation | 37395 |
1 |
| Calera Corporation | 105 |
1 |
| Daicel Corporation | 2562 |
1 |
| Eastman Chemical Company | 2114 |
1 |
| Other owners | 0 |