- 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: 155
10-year publication summary
|
11
|
7
|
9
|
9
|
6
|
6
|
4
|
12
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Kayaku Kabushiki Kaisha | 1468 |
11 |
| FUJIFILM Corporation | 30277 |
7 |
| Sony Semiconductor Solutions Corporation | 11253 |
7 |
| Rmw CHO Group Limited | 18 |
5 |
| Dai Nippon Printing Co., Ltd. | 4216 |
4 |
| Mitsui Chemicals, Inc. | 3219 |
4 |
| Yamamoto Chemicals, Inc. | 47 |
4 |
| University of Southern California | 2123 |
4 |
| Nanoquantum Sciences, Inc. | 6 |
4 |
| North Carolina State University | 1589 |
4 |
| Venner Shipley LLP | 15 |
4 |
| Centre National de La Recherche Scientifique | 10881 |
3 |
| Sumitomo Chemical Company, Limited | 9055 |
3 |
| Adeka Corporation | 1369 |
3 |
| National Institute for Materials Science | 1089 |
3 |
| Samsung Electronics Co., Ltd. | 154120 |
2 |
| LG Chem, Ltd. | 17840 |
2 |
| Ricoh Company, Ltd. | 13299 |
2 |
| Kyocera Corporation | 14259 |
2 |
| The Regents of the University of Michigan | 4911 |
2 |
| Other owners | 75 |