- All sections
- C - Chemistry; metallurgy
- C09B - Organic dyes or closely-related compounds for producing dyes; mordants; lakes
- C09B 19/02 - Bisoxazines prepared from amino quinones
Patent holdings for IPC class C09B 19/02
Total number of patents in this class: 30
10-year publication summary
|
1
|
4
|
0
|
4
|
3
|
3
|
3
|
1
|
2
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DIC Corporation | 3597 |
5 |
| FUJIFILM Corporation | 27102 |
4 |
| Toyo Ink SC Holdings Co., Ltd. | 505 |
4 |
| WisTa Laboratories Ltd. | 128 |
4 |
| Toyocolor Co., Ltd. | 156 |
3 |
| Sumitomo Chemical Company, Limited | 8808 |
1 |
| Toray Industries, Inc. | 6652 |
1 |
| JSR Corporation | 2476 |
1 |
| Clariant Finance (BVI) Limited | 427 |
1 |
| DNP Fine Chemicals Co., Ltd. | 162 |
1 |
| DyStar Textilfarben GmbH & Co. Deutschland KG | 60 |
1 |
| Heidelberger Druckmaschinen AG | 473 |
1 |
| Huntsman Advanced Materials (Switzerland) GmbH | 131 |
1 |
| Toyo Ink Co., Ltd. | 89 |
1 |
| Heubach Holding Switzerland AG (Ltd) | 1 |
1 |
| Other owners | 0 |