- 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 3/34 - Organic impregnating agents
Patent holdings for IPC class B27K 3/34
Total number of patents in this class: 286
10-year publication summary
|
35
|
34
|
16
|
27
|
24
|
18
|
11
|
13
|
16
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tricoya Technologies Ltd | 40 |
27 |
| Koppers Performance Chemicals Inc. | 125 |
10 |
| Metsäliitto Osuuskunta | 46 |
9 |
| Titan Wood Limited | 61 |
8 |
| Arch Wood Protection Pty Ltd | 10 |
7 |
| Nutrition & Biosciences USA 2, LLC | 92 |
7 |
| Rohm and Haas Company | 2895 |
6 |
| Universite de Lorraine | 379 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 30769 |
5 |
| Lufthansa Technik AG | 478 |
5 |
| Tikkurila Oyj | 126 |
5 |
| Janssen Pharmaceutica N.V. | 3437 |
4 |
| Fritz Egger GmbH & Co. og | 242 |
4 |
| Lanxess Deutschland GmbH | 1124 |
4 |
| Prolam, Societe en Commandite | 9 |
4 |
| Solvay Acetow GmbH | 27 |
4 |
| Stora Enso Oyj | 1597 |
4 |
| Centre National de La Recherche Scientifique | 10266 |
3 |
| American Chemet Corporation | 8 |
3 |
| Institut Mines-telecom | 263 |
3 |
| Other owners | 158 |