- All sections
- B - Performing operations; transporting
- 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 for; chemical 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: 292
10-year publication summary
27
|
35
|
34
|
16
|
27
|
24
|
18
|
11
|
13
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Tricoya Technologies Ltd | 41 |
26 |
Koppers Performance Chemicals Inc. | 129 |
11 |
Metsäliitto Osuuskunta | 40 |
9 |
Janssen Pharmaceutica N.V. | 3839 |
7 |
Arch Wood Protection Pty Ltd | 10 |
7 |
Nutrition & Biosciences USA 2, LLC | 131 |
7 |
Rohm and Haas Company | 2805 |
6 |
Titan Wood Limited | 60 |
6 |
Universite de Lorraine | 341 |
6 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
5 |
Lanxess Deutschland GmbH | 1104 |
5 |
Tikkurila Oyj | 114 |
5 |
Fritz Egger GmbH & Co. og | 237 |
4 |
Lufthansa Technik AG | 468 |
4 |
Prolam, Societe en Commandite | 9 |
4 |
Solvay Acetow GmbH | 29 |
4 |
Stora Enso Oyj | 1504 |
4 |
Centre National de La Recherche Scientifique | 9632 |
3 |
BASF AG | 1258 |
3 |
American Chemet Corporation | 8 |
3 |
Other owners | 163 |