- All sections
- C - Chemistrymetallurgy
- C08B - Polysaccharidesderivatives thereof
- C08B 3/22 - Post-esterification treatments, including purification
Patent holdings for IPC class C08B 3/22
Total number of patents in this class: 42
10-year publication summary
|
4
|
1
|
5
|
3
|
2
|
0
|
2
|
7
|
2
|
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 |
5 |
| Daicel Corporation | 2337 |
4 |
| National University Corporation Kanazawa University | 245 |
4 |
| NEC Corporation | 35567 |
3 |
| Centre National de La Recherche Scientifique | 10418 |
2 |
| Konica Minolta Opto, Inc. | 1087 |
2 |
| Celanese International Corporation | 906 |
2 |
| The Court of Edinburgh Napier University | 23 |
2 |
| Virginia Tech Intellectual Properties, Inc. | 863 |
2 |
| Infinited Fiber Company Oy | 41 |
2 |
| The Regents of the University of California | 19887 |
1 |
| FUJIFILM Corporation | 29329 |
1 |
| Procter & Gamble International Operations SA | 147 |
1 |
| Electronics for Imaging, Inc. | 316 |
1 |
| Institut Polytechnique de Grenoble | 396 |
1 |
| Medskin Solutions Dr. Suwelack AG | 58 |
1 |
| Teknologian Tutkimuskeskus VTT | 248 |
1 |
| Universite de Nantes | 335 |
1 |
| The University of Queensland | 659 |
1 |
| UPM-Kymmene Oyj | 52 |
1 |
| Other owners | 4 |