- 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 1/645 - Impregnation followed by a solidification process
Patent holdings for IPC class D04H 1/645
Total number of patents in this class: 72
10-year publication summary
|
8
|
4
|
1
|
6
|
4
|
2
|
6
|
6
|
12
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saint-Gobain Isover | 628 |
17 |
| 3m Innovative Properties Company | 17957 |
8 |
| Carl Freudenberg KG | 1354 |
3 |
| Nonwovenn Ltd | 11 |
3 |
| BASF SE | 20432 |
2 |
| Johns Manville | 964 |
2 |
| Johns Manville Europe GmbH | 14 |
2 |
| Knauf Insulation SPRL | 174 |
2 |
| Saint-Gobain Adfors | 113 |
2 |
| Natural Fiber Welding, Inc. | 99 |
2 |
| ROCKWOOL International A/S | 310 |
2 |
| Rockwool A/S | 784 |
2 |
| The Procter & Gamble Company | 22146 |
1 |
| E. I. du Pont de Nemours and Company | 4249 |
1 |
| Seiko Epson Corporation | 18989 |
1 |
| Rohm and Haas Company | 2852 |
1 |
| Ibiden Co., Ltd. | 1736 |
1 |
| Toyota Industries Corporation | 1057 |
1 |
| Arkema Inc. | 1072 |
1 |
| Board of Trustees of Western Michigan University, The | 84 |
1 |
| Other owners | 17 |