- 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 1/04 - Pigments
Patent holdings for IPC class D01F 1/04
Total number of patents in this class: 229
10-year publication summary
|
8
|
17
|
25
|
17
|
23
|
17
|
18
|
20
|
19
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2218 |
14 |
| Aladdin Manufacturing Corporation | 224 |
7 |
| Polytex Sportbeläge Produktions-GmbH | 110 |
7 |
| DSM IP Assets B.V. | 5589 |
5 |
| Kaneka Corporation | 4549 |
5 |
| Amogreentech Co., Ltd. | 616 |
5 |
| Lenzing Aktiengesellschaft | 520 |
5 |
| Lanxess Deutschland GmbH | 1114 |
4 |
| The Procter & Gamble Company | 22031 |
3 |
| BASF SE | 20967 |
3 |
| E. I. du Pont de Nemours and Company | 4026 |
3 |
| Kimberly-clark Worldwide, Inc. | 5449 |
3 |
| Nitto Denko Corporation | 8271 |
3 |
| Toray Advanced Materials Korea Inc. | 261 |
3 |
| Bundesdruckerei GmbH | 1004 |
3 |
| Foss, Stephen W. | 5 |
3 |
| North Carolina State University | 1566 |
3 |
| Rhodia Acetow GmbH | 32 |
3 |
| Southern Mills, Inc. | 140 |
3 |
| TheUnseen Limited | 20 |
3 |
| Other owners | 141 |