- 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: 485
10-year publication summary
31
|
34
|
44
|
48
|
33
|
48
|
46
|
43
|
51
|
12
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Saint-Gobain Isover | 629 |
87 |
Rockwool A/S | 778 |
56 |
ROCKWOOL International A/S | 307 |
31 |
3m Innovative Properties Company | 17842 |
29 |
Knauf Insulation SPRL | 173 |
21 |
Ibiden Co., Ltd. | 1736 |
20 |
Nichias Corporation | 390 |
18 |
Owens Corning Intellectual Capital, LLC | 1597 |
12 |
MAFTEC Co., Ltd. | 31 |
12 |
Knauf Insulation, Inc. | 188 |
10 |
Denka Company Limited | 2531 |
7 |
Johns Manville | 954 |
7 |
Mitsubishi Chemical Corporation | 4480 |
6 |
Ursa Insulation, S.A. | 30 |
6 |
The Procter & Gamble Company | 22020 |
5 |
Nissin Chemical Industry Co., Ltd. | 105 |
5 |
Zephyros, Inc. | 653 |
5 |
Thermal Ceramics UK Limited | 17 |
5 |
Toray Industries, Inc. | 6886 |
4 |
Cabot Corporation | 549 |
4 |
Other owners | 135 |