- 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 5/04 - Combined bleaching or impregnating and drying of wood
Patent holdings for IPC class B27K 5/04
Total number of patents in this class: 41
10-year publication summary
|
5
|
0
|
5
|
4
|
3
|
4
|
2
|
1
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kebony ASA | 16 |
4 |
| T2earth Holdings LLC | 12 |
3 |
| Cellutech AB | 23 |
2 |
| Industrial Cooperation Foundation Chonbuk National University | 459 |
2 |
| Wells Fargo Bank, National Association | 3622 |
2 |
| DTE Materials Incorporated | 8 |
2 |
| Beijing Forestry University | 17 |
2 |
| Danish Wood Technology Holding ApS | 1 |
1 |
| Eastman Chemical Company | 2262 |
1 |
| Firmenich SA | 1670 |
1 |
| Georgia-Pacific Wood Products LLC | 46 |
1 |
| Marvin Lumber and Cedar Company | 39 |
1 |
| Merichem Chemicals & Refinery Services LLC | 2 |
1 |
| Northeast Forestry University | 23 |
1 |
| PT. Karuna Sumber Jaya | 1 |
1 |
| University of Houston System | 1044 |
1 |
| Woodholdings Environmental, Inc. | 4 |
1 |
| Wqi Limited | 1 |
1 |
| Wuxi Boda Bamboo and Wood Industrial Co., Ltd. | 2 |
1 |
| Gaia Wood Patent A/S | 2 |
1 |
| Other owners | 11 |