- All sections
- C - Chemistry; metallurgy
- C09B - Organic dyes or closely-related compounds for producing dyes; mordants; lakes
- C09B 67/50 - Crystalline modifications of pigments or dyestuff of phthalocyanines
Patent holdings for IPC class C09B 67/50
Total number of patents in this class: 59
10-year publication summary
|
2
|
5
|
6
|
3
|
1
|
3
|
1
|
0
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Chemical Corporation | 4313 |
6 |
| Sun Chemical Corporation | 865 |
6 |
| DIC Corporation | 3597 |
5 |
| M. Technique Co., Ltd. | 237 |
5 |
| Canon Inc. | 36841 |
4 |
| Solvay SA | 1181 |
4 |
| Eastman Kodak Company | 3444 |
3 |
| Mitsubishi Rayon Co., Ltd. | 1003 |
3 |
| Global OLED Technology LLC | 590 |
3 |
| FUJIFILM Corporation | 27102 |
2 |
| Samsung SDI Co., Ltd. | 6671 |
2 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 354 |
2 |
| Peking University | 1111 |
2 |
| Toyo Ink Mfg. Co., Ltd. | 92 |
2 |
| Advanced Ceramics Manufacturing, LLC | 8 |
1 |
| Chi MEI Corporation | 85 |
1 |
| Ciba Holding Inc. | 177 |
1 |
| Clariant Finance (BVI) Limited | 427 |
1 |
| Cleanvolt Energy, Inc. | 6 |
1 |
| Nippon Steel Chemical Co., Ltd. | 179 |
1 |
| Other owners | 4 |