- 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: 176
10-year publication summary
|
7
|
13
|
11
|
18
|
13
|
15
|
5
|
15
|
4
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koppers Performance Chemicals Inc. | 126 |
12 |
| Stella-Jones Inc., | 27 |
5 |
| Troy Corporation | 47 |
5 |
| Nutrition & Biosciences USA 2, LLC | 92 |
5 |
| Daihachi Chemical Industry Co., Ltd. | 62 |
4 |
| Lanxess Deutschland GmbH | 1124 |
4 |
| Janssen Pharmaceutica N.V. | 3413 |
3 |
| Arch Timber Protection Limited | 52 |
3 |
| Arch Wood Protection Pty Ltd | 10 |
3 |
| Georg-august-universitat Gottingen Stiftung Offentlichen Rechts | 74 |
3 |
| Institut Mines-telecom | 266 |
3 |
| Kop-Coat, Inc. | 71 |
3 |
| Nippon Soda Co., Ltd. | 891 |
3 |
| Osmose Utilities Services, Inc. | 141 |
3 |
| Sasol Wax GmbH | 28 |
3 |
| Universite de Lorraine | 380 |
3 |
| Universite Libanaise | 20 |
3 |
| Dow Global Technologies LLC | 10384 |
2 |
| Fritz Egger GmbH & Co. og | 242 |
2 |
| Kemira Oyj | 1197 |
2 |
| Other owners | 102 |