- All sections
- D - Textiles; paper
- D21F - Paper-making machines; methods 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: 290
10-year publication summary
|
19
|
24
|
15
|
12
|
19
|
29
|
32
|
23
|
12
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2727 |
54 |
| Metso Paper, Inc. | 528 |
31 |
| Seiko Epson Corporation | 18724 |
26 |
| MainTech Co., Ltd. | 58 |
15 |
| GPCP IP Holdings LLC | 1733 |
11 |
| Paprima Industries Inc. | 22 |
10 |
| Honeywell Limited | 106 |
8 |
| Honeywell ASCa Inc. | 107 |
7 |
| Valmet AB | 463 |
7 |
| Valmet Automation Oy | 107 |
7 |
| Andritz Technology and Asset Management GmbH | 89 |
6 |
| Runtech Systems Oy | 25 |
6 |
| Valmet Technologies, Inc. | 174 |
6 |
| Kimberly-clark Worldwide, Inc. | 5854 |
5 |
| IBS of America | 25 |
4 |
| Valmet Technologies Oy | 284 |
4 |
| Intpro, LLC | 21 |
4 |
| Georgia-Pacific LLC | 116 |
3 |
| Andritz AG | 218 |
3 |
| Andritz Inc. | 344 |
3 |
| Other owners | 70 |