- All sections
- D - Textilespaper
- D21F - Paper-making machinesmethods of producing paper thereon
- D21F 1/06 - Regulating pulp flow
Patent holdings for IPC class D21F 1/06
Total number of patents in this class: 39
10-year publication summary
|
2
|
0
|
1
|
1
|
1
|
1
|
4
|
3
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2749 |
10 |
| Kimberly-clark Worldwide, Inc. | 5308 |
4 |
| Seiko Epson Corporation | 20256 |
4 |
| AstenJohnson, Inc. | 121 |
2 |
| International Paper Company | 600 |
2 |
| Sulzer Management AG | 712 |
2 |
| Valmet AB | 554 |
2 |
| Yokogawa Electric Corporation | 1893 |
2 |
| Andritz Inc. | 322 |
1 |
| Honeywell ASCa Inc. | 99 |
1 |
| Metso Paper, Inc. | 338 |
1 |
| Nippon Paper Industries Co., Ltd. | 849 |
1 |
| Owens Corning Intellectual Capital, LLC | 1725 |
1 |
| Runtech Systems Oy | 23 |
1 |
| S.A. Giuseppe Cristini S.p.A. | 26 |
1 |
| Stfi, Skogsindustrins Tekniska Forskningsinstitut AB | 1 |
1 |
| Structured I, LLC | 62 |
1 |
| Wetend Technologies Oy | 26 |
1 |
| Tasowheel Systems Oy | 1 |
1 |
| Other owners | 0 |