- All sections
- D - Textilespaper
- D21F - Paper-making machinesmethods of producing paper thereon
- D21F 5/00 - Dryer section of machines for making continuous webs of paper
Patent holdings for IPC class D21F 5/00
Total number of patents in this class: 159
10-year publication summary
|
8
|
15
|
16
|
7
|
11
|
10
|
3
|
11
|
2
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2749 |
22 |
| Stora Enso Oyj | 1653 |
15 |
| MainTech Co., Ltd. | 66 |
10 |
| Metso Paper, Inc. | 338 |
10 |
| Berndorf Band GmbH | 117 |
4 |
| Billerudkorsnas AB | 88 |
4 |
| delfortgroup AG | 156 |
4 |
| Valmet AB | 554 |
4 |
| Paper Excellence Canada Holdings Corporation | 13 |
4 |
| Kimberly-clark Worldwide, Inc. | 5308 |
3 |
| Andritz AG | 244 |
3 |
| Andritz Technology and Asset Management GmbH | 78 |
3 |
| Meri Environmental Solutions GmbH | 44 |
3 |
| Nalco Company | 536 |
3 |
| Oji Holdings Corporation | 797 |
3 |
| Structured I, LLC | 62 |
3 |
| GPCP IP Holdings LLC | 1529 |
3 |
| Seiko Epson Corporation | 20256 |
2 |
| Albany International Corp. | 232 |
2 |
| Durr Systems, Inc. | 105 |
2 |
| Other owners | 52 |