- 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 19/34 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising cellulose or derivatives thereof
Patent holdings for IPC class D21H 19/34
Total number of patents in this class: 292
10-year publication summary
|
18
|
16
|
22
|
25
|
33
|
36
|
33
|
34
|
22
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stora Enso Oyj | 1662 |
50 |
| Kemira Oyj | 1265 |
16 |
| Fiberlean Technologies Limited | 98 |
12 |
| Nippon Paper Industries Co., Ltd. | 854 |
11 |
| Daio Paper Corporation | 1425 |
6 |
| KT & G Corporation | 3173 |
6 |
| University of Maine System Board of Trustees | 289 |
6 |
| Société des Produits Nestlé S.A. | 10057 |
5 |
| BASF SE | 21318 |
5 |
| Domtar Paper Company, LLC | 122 |
5 |
| Toppan Printing Co., Ltd. | 2078 |
5 |
| GranBio Intellectual Property Holdings, LLC | 125 |
5 |
| PAPACKS SALES GmbH | 62 |
4 |
| SWM Holdings US, LLC | 76 |
4 |
| Purdue Research Foundation | 3977 |
3 |
| Kuraray Co., Ltd. | 3616 |
3 |
| Metsa Fibre Oy | 46 |
3 |
| Neenah Gessner GmbH | 97 |
3 |
| Tannpapier GmbH | 59 |
3 |
| Tetra Laval Holdings & Finance S.A. | 2267 |
3 |
| Other owners | 134 |