- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 69/02 - Dyestuff salts, e.g. salts of acid dyes with basic dyes
Patent holdings for IPC class C09B 69/02
Total number of patents in this class: 39
10-year publication summary
|
0
|
2
|
4
|
2
|
2
|
0
|
2
|
0
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 4145 |
6 |
| FUJIFILM Corporation | 29839 |
5 |
| Adeka Corporation | 1367 |
3 |
| Yamamoto Chemicals, Inc. | 47 |
2 |
| Wako Pure Chemical Industries, Ltd. | 130 |
2 |
| Ciba Holding Inc. | 156 |
2 |
| Indiana University Research and Technology Corporation | 798 |
2 |
| Nippon Kayaku Kabushiki Kaisha | 1451 |
2 |
| L' Oréal | 5614 |
2 |
| Sumitomo Chemical Company, Limited | 9109 |
1 |
| Mitsubishi Chemical Corporation | 4612 |
1 |
| Clariant Finance (BVI) Limited | 382 |
1 |
| Day-Glo Color Corp. | 36 |
1 |
| DONGWOO FINE-CHEM Co., Ltd. | 1385 |
1 |
| Milliken & Company | 1183 |
1 |
| Mitsubishi Pencil Company, Limited | 768 |
1 |
| Osaka Prefecture University Public Corporation | 238 |
1 |
| Siemens Healthcare Diagnostics Inc. | 2103 |
1 |
| Sumika Technology Co., Ltd. | 4 |
1 |
| University of Copenhagen | 421 |
1 |
| Other owners | 2 |