- 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 3/52 - Impregnating agents containing mixtures of inorganic and organic compounds
Patent holdings for IPC class B27K 3/52
Total number of patents in this class: 190
10-year publication summary
11
|
5
|
12
|
10
|
23
|
15
|
10
|
23
|
10
|
3
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Koppers Performance Chemicals Inc. | 129 |
18 |
Janssen Pharmaceutica N.V. | 3839 |
6 |
Arch Wood Protection Pty Ltd | 10 |
5 |
Kop-Coat, Inc. | 71 |
5 |
E. I. du Pont de Nemours and Company | 4345 |
4 |
Ecochem International, naamloze vennootschap | 21 |
4 |
Lanxess Deutschland GmbH | 1104 |
4 |
American Chemet Corporation | 8 |
3 |
FP Wood Oy | 3 |
3 |
Kyoto Prefectural Public University Corporation | 209 |
3 |
Phibro-Tech, Inc. | 10 |
3 |
SmartFume Co. | 5 |
3 |
Beijing Forestry University | 13 |
3 |
Arxada AG | 141 |
3 |
BASF SE | 19740 |
2 |
Albemarle Corporation | 514 |
2 |
Arch Timber Protection Limited | 53 |
2 |
Archroma IP GmbH | 460 |
2 |
Board of Supervisors of Louisiana State University and Agricultural and Mechanical College | 786 |
2 |
Bond Distributing, Ltd. | 4 |
2 |
Other owners | 111 |