- 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 21/36 - Biocidal agents, e.g. fungicidal, bactericidal or insecticidal agents
Patent holdings for IPC class D21H 21/36
Total number of patents in this class: 258
10-year publication summary
|
23
|
20
|
12
|
20
|
12
|
26
|
18
|
18
|
10
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kemira Oyj | 1219 |
44 |
| Ecolab USA Inc. | 5544 |
6 |
| Stora Enso Oyj | 1660 |
6 |
| Solenis Technologies, L.P. | 336 |
5 |
| GPCP IP Holdings LLC | 1634 |
5 |
| Kimberly-clark Worldwide, Inc. | 5430 |
4 |
| Buckman Laboratories International, Inc. | 240 |
4 |
| Nippon Paper Industries Co., Ltd. | 835 |
4 |
| Omya International AG | 770 |
4 |
| Giesecke+Devrient Currency Technology GmbH | 905 |
4 |
| Cascades Canada ULC | 603 |
3 |
| Chemgreen Innovation Inc. | 12 |
3 |
| Neozyme International, Inc. | 32 |
3 |
| Oberthur Fiduciaire SAS | 136 |
3 |
| The Procter & Gamble Company | 21996 |
2 |
| Dow Global Technologies LLC | 10459 |
2 |
| Ashland Licensing and Intellectual Property LLC | 97 |
2 |
| Bradley University | 12 |
2 |
| Citrox Biosciences Limited | 25 |
2 |
| Fedrigoni S.p.A. | 266 |
2 |
| Other owners | 148 |