- 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: 157
10-year publication summary
|
11
|
7
|
9
|
9
|
6
|
6
|
4
|
12
|
2
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Kayaku Kabushiki Kaisha | 1454 |
11 |
| FUJIFILM Corporation | 30512 |
7 |
| Sony Semiconductor Solutions Corporation | 11551 |
7 |
| Rmw CHO Group Limited | 20 |
5 |
| Dai Nippon Printing Co., Ltd. | 4237 |
4 |
| Mitsui Chemicals, Inc. | 3242 |
4 |
| Yamamoto Chemicals, Inc. | 48 |
4 |
| University of Southern California | 2128 |
4 |
| Nanoquantum Sciences, Inc. | 6 |
4 |
| North Carolina State University | 1591 |
4 |
| Venner Shipley LLP | 15 |
4 |
| Centre National de La Recherche Scientifique | 11016 |
3 |
| Sumitomo Chemical Company, Limited | 8996 |
3 |
| Adeka Corporation | 1376 |
3 |
| National Institute for Materials Science | 1087 |
3 |
| Samsung Electronics Co., Ltd. | 157557 |
2 |
| LG Chem, Ltd. | 17921 |
2 |
| Ricoh Company, Ltd. | 13346 |
2 |
| Kyocera Corporation | 14335 |
2 |
| The Regents of the University of Michigan | 4979 |
2 |
| Other owners | 77 |