- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 47/00 - PorphinesAzaporphines
Patent holdings for IPC class C09B 47/00
Total number of patents in this class: 159
10-year publication summary
|
13
|
11
|
7
|
9
|
9
|
6
|
6
|
4
|
11
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Kayaku Kabushiki Kaisha | 1435 |
13 |
| FUJIFILM Corporation | 29437 |
9 |
| Sony Semiconductor Solutions Corporation | 10507 |
7 |
| North Carolina State University | 1562 |
5 |
| Dai Nippon Printing Co., Ltd. | 4091 |
4 |
| Mitsui Chemicals, Inc. | 3222 |
4 |
| Yamamoto Chemicals, Inc. | 50 |
4 |
| University of Southern California | 2110 |
4 |
| Nanoquantum Sciences, Inc. | 6 |
4 |
| Rmw CHO Group Limited | 18 |
4 |
| Venner Shipley LLP | 16 |
4 |
| Centre National de La Recherche Scientifique | 10464 |
3 |
| Sumitomo Chemical Company, Limited | 9043 |
3 |
| Adeka Corporation | 1365 |
3 |
| National Institute for Materials Science | 1104 |
3 |
| Samsung Electronics Co., Ltd. | 146811 |
2 |
| LG Chem, Ltd. | 17635 |
2 |
| Ricoh Company, Ltd. | 13283 |
2 |
| Kyocera Corporation | 13857 |
2 |
| The Regents of the University of Michigan | 4711 |
2 |
| Other owners | 75 |