- All sections
- D - Textilespaper
- D04H - Making textile fabrics, e.g. from fibres or filamentary materialfabrics made by such processes or apparatus, e.g. felts, non-woven fabricscotton-woolwadding
- D04H 1/4209 - Inorganic fibres
Patent holdings for IPC class D04H 1/4209
Total number of patents in this class: 523
10-year publication summary
|
28
|
35
|
39
|
30
|
39
|
38
|
39
|
49
|
34
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saint-Gobain Isover | 665 |
89 |
| Rockwool A/S | 814 |
59 |
| ROCKWOOL International A/S | 294 |
30 |
| 3m Innovative Properties Company | 17589 |
29 |
| Ibiden Co., Ltd. | 1686 |
23 |
| Knauf Insulation SPRL | 175 |
21 |
| LG Chem, Ltd. | 17778 |
18 |
| Nichias Corporation | 398 |
18 |
| Owens Corning Intellectual Capital, LLC | 1637 |
14 |
| MAFTEC Co., Ltd. | 33 |
12 |
| Knauf Insulation, Inc. | 188 |
10 |
| Denka Company Limited | 2682 |
7 |
| Johns Manville | 934 |
7 |
| Mitsubishi Chemical Corporation | 4684 |
6 |
| Cabot Corporation | 552 |
6 |
| Ursa Insulation, S.A. | 31 |
6 |
| The Procter & Gamble Company | 21987 |
5 |
| Nissin Chemical Industry Co., Ltd. | 110 |
5 |
| Saint-Gobain Adfors | 123 |
5 |
| Unifrax I LLC | 241 |
5 |
| Other owners | 148 |