- 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 1/07 - Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
Patent holdings for IPC class D01F 1/07
Total number of patents in this class: 205
10-year publication summary
|
11
|
18
|
14
|
18
|
19
|
19
|
18
|
22
|
10
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kaneka Corporation | 4607 |
16 |
| Lenzing Aktiengesellschaft | 517 |
11 |
| QED Labs Inc. | 20 |
10 |
| Toray Advanced Materials Korea Inc. | 270 |
6 |
| Brookwood Companies Incorporated | 47 |
6 |
| Jiangsu Hengli; Chemical Fibre Co., Ltd. | 115 |
6 |
| Polytex Sportbeläge Produktions-GmbH | 110 |
6 |
| E. I. du Pont de Nemours and Company | 3913 |
4 |
| 3m Innovative Properties Company | 17739 |
3 |
| BASF SE | 21083 |
3 |
| Denka Company Limited | 2649 |
3 |
| FRX Polymers, Inc. | 45 |
3 |
| North Carolina State University | 1582 |
3 |
| Universal Fibers, Inc. | 50 |
3 |
| Zhejiang Hailide New Material Co., Ltd. | 15 |
3 |
| Nantong Qiangsheng New Material Technology Co., Ltd. | 10 |
3 |
| Ricoh Company, Ltd. | 13364 |
2 |
| Toray Industries, Inc. | 7006 |
2 |
| Albemarle Corporation | 484 |
2 |
| BFS Europe NV | 15 |
2 |
| Other owners | 108 |