- All sections
- D - Textilespaper
- D21F - Paper-making machinesmethods of producing paper thereon
- D21F 11/14 - Making cellulose wadding, filter- or blotting paper
Patent holdings for IPC class D21F 11/14
Total number of patents in this class: 354
10-year publication summary
|
34
|
22
|
48
|
46
|
40
|
47
|
18
|
21
|
7
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GPCP IP Holdings LLC | 1639 |
59 |
| Kimberly-clark Worldwide, Inc. | 5504 |
56 |
| Voith Patent GmbH | 2756 |
45 |
| The Procter & Gamble Company | 22037 |
39 |
| Valmet AB | 503 |
22 |
| Andritz AG | 232 |
16 |
| First Quality Tissue, LLC | 156 |
16 |
| Albany International Corp. | 255 |
9 |
| Mercer International Inc. | 30 |
7 |
| Structured I, LLC | 58 |
6 |
| The Clorox Company | 948 |
5 |
| International Paper Company | 791 |
5 |
| Giesecke+Devrient Currency Technology GmbH | 886 |
5 |
| A. Celli Paper S.p.A. | 34 |
3 |
| Buckman Laboratories International, Inc. | 235 |
3 |
| Teknologian Tutkimuskeskus VTT Oy | 530 |
3 |
| Toscotec S.p.A. | 36 |
3 |
| UPM-Kymmene Corporation | 937 |
3 |
| Centre Technique du Papier | 18 |
2 |
| Eldorado Brasil Celulose S.A. | 5 |
2 |
| Other owners | 45 |