- 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 1/4218 - Glass fibres
Patent holdings for IPC class D04H 1/4218
Total number of patents in this class: 475
10-year publication summary
|
36
|
33
|
35
|
54
|
51
|
49
|
31
|
44
|
32
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saint-Gobain Isover | 603 |
76 |
| Owens Corning Intellectual Capital, LLC | 1456 |
52 |
| Rockwool A/S | 753 |
41 |
| Johns Manville | 980 |
39 |
| ROCKWOOL International A/S | 323 |
21 |
| The Procter & Gamble Company | 22178 |
15 |
| 3m Innovative Properties Company | 18406 |
15 |
| OCV Intellectual Capital, LLC | 265 |
13 |
| Knauf Insulation SPRL | 167 |
10 |
| Saint-Gobain Adfors | 111 |
10 |
| Knauf Insulation, Inc. | 185 |
9 |
| Teijin Limited | 1216 |
8 |
| Rohm and Haas Company | 2805 |
5 |
| Asahi Fiber Glass Company, Limited | 52 |
5 |
| Kuraray Co., Ltd. | 3392 |
5 |
| Nippon Electric Glass Co., Ltd. | 2299 |
5 |
| Saint-Gobain Adfors Canada, Ltd. | 68 |
5 |
| Ibiden Co., Ltd. | 1724 |
4 |
| Hollingsworth & Vose Company | 274 |
4 |
| Nitto Boseki Co., Ltd. | 261 |
4 |
| Other owners | 129 |