- 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: 156
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 | 1457 |
11 |
| FUJIFILM Corporation | 30458 |
7 |
| Sony Semiconductor Solutions Corporation | 11518 |
7 |
| Rmw CHO Group Limited | 20 |
5 |
| Dai Nippon Printing Co., Ltd. | 4230 |
4 |
| Mitsui Chemicals, Inc. | 3242 |
4 |
| Yamamoto Chemicals, Inc. | 48 |
4 |
| University of Southern California | 2132 |
4 |
| Nanoquantum Sciences, Inc. | 6 |
4 |
| North Carolina State University | 1590 |
4 |
| Venner Shipley LLP | 15 |
4 |
| Centre National de La Recherche Scientifique | 10993 |
3 |
| Sumitomo Chemical Company, Limited | 9016 |
3 |
| Adeka Corporation | 1375 |
3 |
| National Institute for Materials Science | 1086 |
3 |
| Samsung Electronics Co., Ltd. | 157039 |
2 |
| LG Chem, Ltd. | 17929 |
2 |
| Ricoh Company, Ltd. | 13342 |
2 |
| Kyocera Corporation | 14318 |
2 |
| The Regents of the University of Michigan | 4964 |
2 |
| Other owners | 76 |