- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 3/78 - Other dyes in which the anthracene nucleus is condensed with one or more carbocyclic rings
Patent holdings for IPC class C09B 3/78
Total number of patents in this class: 19
10-year publication summary
|
2
|
0
|
3
|
3
|
1
|
1
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4224 |
6 |
| Merck Patent GmbH | 5815 |
3 |
| UDC Ireland Limited | 476 |
3 |
| The Procter & Gamble Company | 22043 |
1 |
| Samsung Display Co., Ltd. | 34907 |
1 |
| Canon Inc. | 40095 |
1 |
| Hewlett-Packard Development Company, L.P. | 25864 |
1 |
| FUJIFILM Corporation | 29437 |
1 |
| Quest PharmaTech Inc. | 11 |
1 |
| JDI Design and Development G.K. | 38 |
1 |
| Other owners | 0 |