- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 211/54 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
Patent holdings for IPC class C07C 211/54
Total number of patents in this class: 837
10-year publication summary
|
49
|
100
|
60
|
55
|
49
|
52
|
76
|
88
|
44
|
39
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17704 |
96 |
| Samsung Display Co., Ltd. | 36582 |
68 |
| Merck Patent GmbH | 5733 |
62 |
| Hodogaya Chemical Co., Ltd. | 435 |
61 |
| Idemitsu Kosan Co., Ltd. | 4221 |
58 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 299 |
48 |
| Duk San Neolux Co., Ltd. | 670 |
47 |
| SFC Co., Ltd. | 325 |
25 |
| Semiconductor Energy Laboratory Co., Ltd. | 11555 |
23 |
| Nissan Chemical Industries, Ltd. | 1696 |
17 |
| E. I. du Pont de Nemours and Company | 3829 |
16 |
| Kyocera Document Solutions Inc. | 5855 |
15 |
| LT Materials Co., Ltd. | 414 |
10 |
| Material Science Co., Ltd. | 42 |
7 |
| Sumitomo Chemical Company, Limited | 9098 |
6 |
| Mitsubishi Chemical Corporation | 4610 |
6 |
| Samsung Electronics Co., Ltd. | 149582 |
5 |
| Konica Minolta, Inc. | 8922 |
5 |
| Mitsubishi Rayon Co., Ltd. | 891 |
5 |
| Eastman Chemical Company | 2103 |
5 |
| Other owners | 252 |