- All sections
- D - Textilespaper
- D21F - Paper-making machinesmethods of producing paper thereon
- D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
Patent holdings for IPC class D21F 11/00
Total number of patents in this class: 817
10-year publication summary
|
49
|
35
|
65
|
62
|
62
|
62
|
44
|
51
|
38
|
27
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 22031 |
143 |
| Kimberly-clark Worldwide, Inc. | 5449 |
97 |
| GPCP IP Holdings LLC | 1637 |
92 |
| Voith Patent GmbH | 2765 |
67 |
| Stora Enso Oyj | 1650 |
31 |
| Albany International Corp. | 256 |
28 |
| Structured I, LLC | 58 |
18 |
| Essity Hygiene and Health Aktiebolag | 2046 |
11 |
| Valmet AB | 511 |
10 |
| Giesecke+Devrient Currency Technology GmbH | 896 |
9 |
| Seiko Epson Corporation | 19458 |
8 |
| Ecolab USA Inc. | 5507 |
7 |
| Andritz AG | 233 |
6 |
| Georgia-Pacific Consumer Products LP | 110 |
6 |
| International Paper Company | 785 |
6 |
| Honeywell International Inc. | 13547 |
5 |
| Honeywell Limited | 114 |
5 |
| Billerudkorsnas AB | 87 |
5 |
| The Clorox Company | 948 |
5 |
| delfortgroup AG | 151 |
5 |
| Other owners | 253 |