- All sections
- D - Textilespaper
- D21H - Pulp compositionspreparation thereof not covered by subclasses , impregnating or coating of papertreatment of finished paper not covered by class or subclass paper not otherwise provided for
- D21H 27/16 - Pure paper, i.e. paper lacking or having low content of contaminants
Patent holdings for IPC class D21H 27/16
Total number of patents in this class: 6
10-year publication summary
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0
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1
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0
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1
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0
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0
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1
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0
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2
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Georgia-Pacific Bleached Board LLC | 2 |
1 |
| Munksjo Oyj | 9 |
1 |
| Stora Enso Oyj | 1660 |
1 |
| Ahlstrom Oyj | 109 |
1 |
| Suzano S.A. | 205 |
1 |
| Amcor Flexibles North America, Inc. | 293 |
1 |
| Other owners | 0 |