- All sections
- D - Textilespaper
- D21F - Paper-making machinesmethods of producing paper thereon
- D21F 7/00 - Other details of machines for making continuous webs of paper
Patent holdings for IPC class D21F 7/00
Total number of patents in this class: 295
10-year publication summary
|
19
|
12
|
11
|
17
|
28
|
25
|
24
|
11
|
21
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2775 |
54 |
| Seiko Epson Corporation | 19671 |
32 |
| Metso Paper, Inc. | 415 |
25 |
| MainTech Co., Ltd. | 66 |
15 |
| GPCP IP Holdings LLC | 1634 |
11 |
| Paprima Industries Inc. | 22 |
10 |
| Honeywell Limited | 114 |
8 |
| Valmet AB | 518 |
8 |
| Valmet Automation Oy | 113 |
8 |
| Honeywell ASCa Inc. | 107 |
7 |
| Andritz Technology and Asset Management GmbH | 89 |
6 |
| Valmet Technologies, Inc. | 144 |
6 |
| Kimberly-clark Worldwide, Inc. | 5430 |
5 |
| Andritz AG | 235 |
4 |
| IBS of America | 26 |
4 |
| Runtech Systems Oy | 23 |
4 |
| Valmet Technologies Oy | 287 |
4 |
| Intpro, LLC | 22 |
4 |
| Georgia-Pacific LLC | 116 |
3 |
| Honeywell Limited / Honeywell limitée | 21 |
3 |
| Other owners | 74 |