- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 211/58 - NaphthylaminesN-substituted derivatives thereof
Patent holdings for IPC class C07C 211/58
Total number of patents in this class: 246
10-year publication summary
|
31
|
23
|
14
|
18
|
17
|
25
|
9
|
12
|
14
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Display Co., Ltd. | 39012 |
28 |
| Hodogaya Chemical Co., Ltd. | 431 |
23 |
| Idemitsu Kosan Co., Ltd. | 4269 |
18 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 325 |
17 |
| Merck Patent GmbH | 5742 |
14 |
| LG Chem, Ltd. | 17967 |
11 |
| Duk San Neolux Co., Ltd. | 703 |
10 |
| SFC Co., Ltd. | 337 |
8 |
| Beijing Eternal Material Technology Co., Ltd | 27 |
5 |
| Semiconductor Energy Laboratory Co., Ltd. | 11890 |
4 |
| Lanxess Corporation | 290 |
4 |
| The Research Foundation for The State University of New York | 1764 |
4 |
| Universal Display Corporation | 2101 |
4 |
| Suzhou Abogen Biosciences Co., Ltd. | 79 |
4 |
| BASF SE | 21328 |
3 |
| Konica Minolta, Inc. | 9165 |
3 |
| Guangdong Aglaia Optoelectronic Materials Co., Ltd. | 179 |
3 |
| Nichem Fine Technology Co., Ltd. | 12 |
3 |
| FUJIFILM Corporation | 30653 |
2 |
| Albemarle Corporation | 475 |
2 |
| Other owners | 76 |