- All sections
- D - Textilespaper
- D21H - Pulp compositionspreparation thereof not covered by subclasses , impregnating or coating of papertreatment of finished paper not covered by class or subclass paper not otherwise provided for
- D21H 13/46 - Non-siliceous fibres, e.g. from metal oxides
Patent holdings for IPC class D21H 13/46
Total number of patents in this class: 14
10-year publication summary
|
0
|
1
|
0
|
0
|
0
|
0
|
0
|
3
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Envioneer Co., Ltd. | 19 |
2 |
| Siemens AG | 24568 |
1 |
| The Boeing Company | 19994 |
1 |
| Northwestern University | 3357 |
1 |
| Condalign AS | 26 |
1 |
| Mitsubishi Paper Mills Limited | 233 |
1 |
| National Institute for Materials Science | 1109 |
1 |
| Shanghai Institute of Ceramics, Chinese Academy of Sciences | 157 |
1 |
| Teijin Aramid GmbH | 48 |
1 |
| Teijin Limited | 1234 |
1 |
| The Royal Institution for The Advancement of Learning / McGill University | 678 |
1 |
| Sik - Institutet För Livsmedel Och Bioteknik AB | 2 |
1 |
| MAFTEC Co., Ltd. | 31 |
1 |
| Other owners | 0 |