- 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 3/50 - Mixtures of different organic impregnating agents
Patent holdings for IPC class B27K 3/50
Total number of patents in this class: 174
10-year publication summary
|
13
|
11
|
18
|
13
|
15
|
5
|
15
|
7
|
7
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koppers Performance Chemicals Inc. | 123 |
12 |
| Stella-Jones Inc., | 31 |
5 |
| Troy Corporation | 40 |
5 |
| Nutrition & Biosciences USA 2, LLC | 67 |
5 |
| Janssen Pharmaceutica N.V. | 3171 |
3 |
| Arch Timber Protection Limited | 51 |
3 |
| Arch Wood Protection Pty Ltd | 10 |
3 |
| Daihachi Chemical Industry Co., Ltd. | 60 |
3 |
| Institut Mines-telecom | 290 |
3 |
| Kop-Coat, Inc. | 69 |
3 |
| Nippon Soda Co., Ltd. | 885 |
3 |
| Osmose Utilities Services, Inc. | 142 |
3 |
| Universite de Lorraine | 400 |
3 |
| Universite Libanaise | 20 |
3 |
| Dow Global Technologies LLC | 10930 |
2 |
| Fritz Egger GmbH & Co. og | 252 |
2 |
| Georg-august-universitat Gottingen Stiftung Offentlichen Rechts | 75 |
2 |
| Kebony ASA | 17 |
2 |
| Kemira Oyj | 1258 |
2 |
| Kyoto Prefectural Public University Corporation | 255 |
2 |
| Other owners | 105 |