- 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 1/4209 - Inorganic fibres
Patent holdings for IPC class D04H 1/4209
Total number of patents in this class: 425
10-year publication summary
|
18
|
31
|
34
|
44
|
47
|
31
|
49
|
45
|
38
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saint-Gobain Isover | 603 |
79 |
| Rockwool A/S | 753 |
48 |
| ROCKWOOL International A/S | 323 |
32 |
| 3m Innovative Properties Company | 18406 |
28 |
| Nichias Corporation | 386 |
18 |
| Knauf Insulation SPRL | 167 |
17 |
| MAFTEC Co., Ltd. | 28 |
12 |
| Ibiden Co., Ltd. | 1724 |
11 |
| Owens Corning Intellectual Capital, LLC | 1456 |
9 |
| Knauf Insulation, Inc. | 185 |
8 |
| Mitsubishi Chemical Corporation | 4313 |
6 |
| Denka Company Limited | 2189 |
6 |
| Ursa Insulation, S.A. | 28 |
6 |
| Johns Manville | 980 |
5 |
| Zephyros, Inc. | 613 |
5 |
| Thermal Ceramics UK Limited | 15 |
5 |
| The Procter & Gamble Company | 22178 |
4 |
| Nissin Chemical Industry Co., Ltd. | 94 |
4 |
| Toray Industries, Inc. | 6652 |
4 |
| Imae Industry Co., Ltd | 9 |
4 |
| Other owners | 114 |