- 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: 233
10-year publication summary
|
17
|
31
|
23
|
14
|
18
|
18
|
24
|
9
|
12
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Display Co., Ltd. | 33019 |
26 |
| Idemitsu Kosan Co., Ltd. | 4122 |
23 |
| Hodogaya Chemical Co., Ltd. | 427 |
22 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 228 |
14 |
| Merck Patent GmbH | 5864 |
13 |
| LG Chem, Ltd. | 17662 |
10 |
| Duk San Neolux Co., Ltd. | 595 |
10 |
| SFC Co., Ltd. | 299 |
8 |
| Semiconductor Energy Laboratory Co., Ltd. | 11119 |
4 |
| Lanxess Corporation | 262 |
4 |
| The Research Foundation for The State University of New York | 1558 |
4 |
| Beijing Eternal Material Technology Co., Ltd | 21 |
4 |
| Suzhou Abogen Biosciences Co., Ltd. | 67 |
4 |
| Konica Minolta, Inc. | 8561 |
3 |
| Guangdong Aglaia Optoelectronic Materials Co., Ltd. | 163 |
3 |
| Nichem Fine Technology Co., Ltd. | 12 |
3 |
| Universal Display Corporation | 1823 |
3 |
| BASF SE | 20501 |
2 |
| FUJIFILM Corporation | 28857 |
2 |
| Albemarle Corporation | 509 |
2 |
| Other owners | 69 |