- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 31/18 - Trisazo dyes from a coupling component "D" containing a directive amino group
Patent holdings for IPC class C09B 31/18
Total number of patents in this class: 22
10-year publication summary
|
3
|
1
|
0
|
1
|
0
|
0
|
2
|
1
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29458 |
6 |
| BASF SE | 20945 |
2 |
| Mitsubishi Chemical Corporation | 4526 |
2 |
| Kemira Oyj | 1207 |
2 |
| Nippon Kayaku Kabushiki Kaisha | 1438 |
2 |
| LG Chem, Ltd. | 17641 |
1 |
| Merck Patent GmbH | 5812 |
1 |
| Seiko Epson Corporation | 19425 |
1 |
| Amazon Technologies, Inc. | 26796 |
1 |
| Archroma IP GmbH | 461 |
1 |
| Clariant International Ltd. | 932 |
1 |
| Polatechno Co., Ltd. | 110 |
1 |
| Chromascape, LLC | 51 |
1 |
| Other owners | 0 |