- All sections
- D - Textiles; paper
- D04H - Making textile fabrics, e.g. from fibres or filamentary material; fabrics made by such processes or apparatus, e.g. felts, non-woven fabrics; cotton-wool; wadding
- D04H 1/728 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
Patent holdings for IPC class D04H 1/728
Total number of patents in this class: 878
10-year publication summary
|
55
|
86
|
78
|
79
|
70
|
85
|
87
|
75
|
73
|
23
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amogreentech Co., Ltd. | 566 |
34 |
| Kao Corporation | 4843 |
33 |
| FUJIFILM Corporation | 27102 |
27 |
| Washington University | 1473 |
22 |
| Panasonic Corporation | 20786 |
16 |
| Cornell University | 3036 |
13 |
| Toray Industries, Inc. | 6652 |
11 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
11 |
| Finetex Ene, Inc. | 26 |
9 |
| Teijin Limited | 1216 |
9 |
| Bakel S.r.l. | 37 |
8 |
| Amolifescience Co., Ltd. | 90 |
8 |
| The Procter & Gamble Company | 22178 |
7 |
| Donaldson Company, Inc. | 1513 |
7 |
| Altria Client Services LLC | 1866 |
6 |
| Japan Vilene Company, Ltd. | 63 |
6 |
| JNC Corporation | 1527 |
6 |
| JNC Fibers Corporation | 46 |
6 |
| National Institute for Materials Science | 1108 |
6 |
| Poly-Med, Inc. | 187 |
6 |
| Other owners | 627 |