- All sections
- C - Chemistry; metallurgy
- C08B - Polysaccharides; derivatives thereof
- C08B 3/16 - Preparation of mixed organic cellulose esters
Patent holdings for IPC class C08B 3/16
Total number of patents in this class: 173
10-year publication summary
|
13
|
9
|
15
|
13
|
17
|
13
|
11
|
7
|
16
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2239 |
70 |
| NEC Corporation | 32703 |
25 |
| Daicel Corporation | 2128 |
12 |
| FUJIFILM Corporation | 27102 |
10 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
7 |
| Konica Minolta Opto, Inc. | 1179 |
3 |
| Virginia Tech Intellectual Properties, Inc. | 772 |
3 |
| Konica Minolta, Inc. | 8349 |
2 |
| Celanese Acetate LLC | 81 |
2 |
| Celanese International Corporation | 879 |
2 |
| Futamura Kagaku Kabushiki Kaisha | 71 |
2 |
| The Japan Steel Works, Ltd. | 597 |
2 |
| Kyoto University | 2732 |
2 |
| Finecell Sweden AB | 4 |
2 |
| Compagnie Generale des Etablissements Michelin | 4450 |
2 |
| FUJIFILM Business Innovation Corp. | 7395 |
2 |
| Eastman Kodak Company | 3444 |
1 |
| Dow Global Technologies LLC | 10147 |
1 |
| Battelle Memorial Institute | 2356 |
1 |
| Adeka Corporation | 1333 |
1 |
| Other owners | 21 |