- All sections
- C - Chemistry; metallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/23 - Azo-compounds
Patent holdings for IPC class C08K 5/23
Total number of patents in this class: 345
10-year publication summary
|
44
|
25
|
21
|
36
|
40
|
30
|
32
|
30
|
25
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17205 |
11 |
| FUJIFILM Corporation | 27102 |
11 |
| Dow Global Technologies LLC | 10147 |
9 |
| Bridgestone Corporation | 7067 |
7 |
| Canon Inc. | 36841 |
6 |
| Henkel AG & Co. KGaA | 10129 |
6 |
| Seiko Epson Corporation | 18724 |
5 |
| Toray Industries, Inc. | 6652 |
5 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 354 |
5 |
| Nissan Chemical Industries, Ltd. | 1822 |
5 |
| Sekisui Chemical Co., Ltd. | 3159 |
5 |
| Ivoclar Vivadent AG | 1060 |
4 |
| Samsung Electronics Co., Ltd. | 131630 |
3 |
| Xerox Corporation | 7503 |
3 |
| Industrial Technology Research Institute | 4898 |
3 |
| DSM IP Assets B.V. | 5856 |
3 |
| Arkema France | 3790 |
3 |
| Ciba Holding Inc. | 177 |
3 |
| Ciba Specialty Chemicals Holding Inc. | 211 |
3 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
3 |
| Other owners | 242 |