- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 1/503 - Amino-hydroxy anthraquinonesEthers or esters thereof unsubstituted amino-hydroxy anthraquinone
Patent holdings for IPC class C09B 1/503
Total number of patents in this class: 12
10-year publication summary
|
0
|
0
|
0
|
5
|
1
|
3
|
1
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Kayaku Kabushiki Kaisha | 1468 |
4 |
| LG Chem, Ltd. | 17879 |
1 |
| Canon Inc. | 42581 |
1 |
| FUJIFILM Corporation | 30313 |
1 |
| Dai Nippon Printing Co., Ltd. | 4218 |
1 |
| University of Rochester | 1324 |
1 |
| Yangzhou Rixing Bio-Tech Co., Ltd. | 5 |
1 |
| Pili | 21 |
1 |
| CooperVision International Limited | 603 |
1 |
| Other owners | 0 |