- All sections
- D - Textilespaper
- D01F - Chemical features in the manufacture of man-made filaments, threads, fibres, bristles or ribbonsapparatus specially adapted for the manufacture of carbon filaments
- D01F 2/30 - Monocomponent artificial filaments or the like of cellulose or cellulose derivativesManufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate by the dry spinning process
Patent holdings for IPC class D01F 2/30
Total number of patents in this class: 19
10-year publication summary
|
4
|
1
|
2
|
3
|
1
|
4
|
1
|
1
|
0
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daicel Corporation | 2338 |
7 |
| Eastman Chemical Company | 2216 |
5 |
| FUJIFILM Corporation | 29350 |
1 |
| Georgia Tech Research Corporation | 2729 |
1 |
| Dreamwell, Ltd. | 397 |
1 |
| Lenzing Aktiengesellschaft | 522 |
1 |
| Nippon Filcon Co., Ltd. | 120 |
1 |
| Spinnova Oy | 26 |
1 |
| Acetate International LLC | 63 |
1 |
| Other owners | 0 |