- 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 4/00 - Monocomponent artificial filaments or the like of proteinsManufacture thereof
Patent holdings for IPC class D01F 4/00
Total number of patents in this class: 300
10-year publication summary
|
25
|
24
|
25
|
25
|
22
|
9
|
19
|
17
|
24
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bolt Threads, Inc. | 147 |
17 |
| Modern Meadow, Inc. | 90 |
16 |
| Spiber Inc. | 237 |
16 |
| Kaneka Corporation | 4775 |
15 |
| Kao Corporation | 5100 |
10 |
| Embody Inc. | 64 |
10 |
| The Procter & Gamble Company | 21862 |
7 |
| Seevix Material Sciences Ltd. | 25 |
6 |
| MiMedx Group, Inc. | 211 |
5 |
| Kojima Industries Corporation | 110 |
4 |
| Spinnova Oy | 22 |
4 |
| IP Ventures GmbH | 5 |
4 |
| Nitto Denko Corporation | 8589 |
3 |
| Case Western Reserve University | 1907 |
3 |
| Drexel University | 998 |
3 |
| National Agriculture and Food Research Organization | 344 |
3 |
| NUtech Ventures | 368 |
3 |
| Osaka University | 3257 |
3 |
| Trustees of Tufts College | 994 |
3 |
| Wake Forest University Health Sciences | 730 |
3 |
| Other owners | 162 |