- All sections
- B - Performing operationstransporting
- B27K - Processes, apparatus or selection of substances for impregnating, staining, dyeing or bleaching of wood, or for treating of wood with permeant liquids, not otherwise provided forchemical or physical treatment of cork, cane, reed, straw or similar materials
- B27K 3/52 - Impregnating agents containing mixtures of inorganic and organic compounds
Patent holdings for IPC class B27K 3/52
Total number of patents in this class: 187
10-year publication summary
|
5
|
11
|
9
|
22
|
15
|
9
|
20
|
10
|
6
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koppers Performance Chemicals Inc. | 123 |
15 |
| Kop-Coat, Inc. | 68 |
6 |
| Arxada AG | 165 |
6 |
| Janssen Pharmaceutica N.V. | 3369 |
5 |
| Arch Wood Protection Pty Ltd | 10 |
5 |
| E. I. du Pont de Nemours and Company | 4012 |
4 |
| Ecochem International, naamloze vennootschap | 27 |
4 |
| Kyoto Prefectural Public University Corporation | 237 |
4 |
| Arxada, LLC | 216 |
4 |
| American Chemet Corporation | 8 |
3 |
| FP Wood Oy | 3 |
3 |
| Lanxess Deutschland GmbH | 1111 |
3 |
| SmartFume Co. | 5 |
3 |
| Beijing Forestry University | 18 |
3 |
| BASF SE | 20979 |
2 |
| National Institute of Advanced Industrial Science and Technology | 3798 |
2 |
| Albemarle Corporation | 483 |
2 |
| Arch Timber Protection Limited | 52 |
2 |
| Archroma IP GmbH | 461 |
2 |
| Board of Supervisors of Louisiana State University and Agricultural and Mechanical College | 824 |
2 |
| Other owners | 107 |