- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 67/20 - Preparations of organic pigments
Patent holdings for IPC class C09B 67/20
Total number of patents in this class: 1235
10-year publication summary
|
63
|
46
|
59
|
59
|
80
|
77
|
98
|
104
|
71
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29367 |
366 |
| DIC Corporation | 3794 |
117 |
| Nippon Kayaku Kabushiki Kaisha | 1432 |
53 |
| Sumitomo Chemical Company, Limited | 9046 |
47 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 371 |
35 |
| Toyo Ink SC Holdings Co., Ltd. | 464 |
31 |
| Canon Kabushiki Kaisha | 7056 |
27 |
| Mitsubishi Chemical Corporation | 4507 |
26 |
| Kao Corporation | 4964 |
25 |
| DNP Fine Chemicals Co., Ltd. | 178 |
24 |
| Toyocolor Co., Ltd. | 217 |
23 |
| Dai Nippon Printing Co., Ltd. | 4082 |
20 |
| M. Technique Co., Ltd. | 248 |
16 |
| Adeka Corporation | 1362 |
12 |
| Toray Industries, Inc. | 6936 |
10 |
| Sun Chemical Corporation | 836 |
9 |
| Xerox Corporation | 7013 |
8 |
| JSR Corporation | 2517 |
8 |
| Toyo Ink Mfg. Co., Ltd. | 73 |
8 |
| Agc, Inc. | 4839 |
8 |
| Other owners | 362 |