- All sections
- C - Chemistry; metallurgy
- C08B - Polysaccharides; derivatives thereof
- C08B 3/22 - Post-esterification treatments, including purification
Patent holdings for IPC class C08B 3/22
Total number of patents in this class: 39
10-year publication summary
|
4
|
1
|
5
|
3
|
2
|
0
|
2
|
6
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2256 |
5 |
| Daicel Corporation | 2242 |
4 |
| National University Corporation Kanazawa University | 250 |
4 |
| NEC Corporation | 34371 |
3 |
| Konica Minolta Opto, Inc. | 1133 |
2 |
| Celanese International Corporation | 911 |
2 |
| Virginia Tech Intellectual Properties, Inc. | 820 |
2 |
| Infinited Fiber Company Oy | 38 |
2 |
| Finecell Sweden AB | 4 |
2 |
| Centre National de La Recherche Scientifique | 10091 |
1 |
| FUJIFILM Corporation | 28555 |
1 |
| Procter & Gamble International Operations SA | 157 |
1 |
| The Court of Edinburgh Napier University | 21 |
1 |
| Electronics for Imaging, Inc. | 310 |
1 |
| Medskin Solutions Dr. Suwelack AG | 56 |
1 |
| Teknologian Tutkimuskeskus VTT | 247 |
1 |
| Universite de Nantes | 344 |
1 |
| The University of Queensland | 657 |
1 |
| UPM-Kymmene Oyj | 53 |
1 |
| Valtion Teknillinen Tutkimuskeskus | 162 |
1 |
| Other owners | 2 |