- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 211/57 - 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 carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton
Patent holdings for IPC class C07C 211/57
Total number of patents in this class: 79
10-year publication summary
3
|
3
|
5
|
3
|
4
|
7
|
12
|
9
|
6
|
3
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
LG Chem, Ltd. | 17636 |
15 |
Idemitsu Kosan Co., Ltd. | 4228 |
9 |
Duk San Neolux Co., Ltd. | 655 |
7 |
Merck Patent GmbH | 5814 |
6 |
Samsung Display Co., Ltd. | 35017 |
3 |
SFC Co., Ltd. | 321 |
3 |
Canon Inc. | 40216 |
2 |
Sumitomo Chemical Company, Limited | 9044 |
2 |
Cambridge Display Technology Limited | 493 |
2 |
Celgene Corporation | 1396 |
2 |
Hodogaya Chemical Co., Ltd. | 434 |
2 |
JW Pharmaceutical Corporation | 75 |
2 |
Lanxess Solutions US, Inc. | 107 |
2 |
LT Materials Co., Ltd. | 408 |
2 |
P&H Tech Co., Ltd | 46 |
2 |
Samsung Electronics Co., Ltd. | 147131 |
1 |
E. I. du Pont de Nemours and Company | 4026 |
1 |
Bayer Cropscience AG | 2037 |
1 |
FUJIFILM Corporation | 29489 |
1 |
Semiconductor Energy Laboratory Co., Ltd. | 11456 |
1 |
Other owners | 13 |