- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 211/61 - 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 with at least one of the condensed ring systems formed by three or more rings
Patent holdings for IPC class C07C 211/61
Total number of patents in this class: 825
10-year publication summary
41
|
58
|
67
|
66
|
71
|
73
|
61
|
87
|
84
|
24
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Idemitsu Kosan Co., Ltd. | 3995 |
104 |
Merck Patent GmbH | 5909 |
100 |
LG Chem, Ltd. | 17205 |
88 |
Samsung Display Co., Ltd. | 30585 |
71 |
Shaanxi Lighte Optoelectronics Material Co., Ltd. | 190 |
42 |
Hodogaya Chemical Co., Ltd. | 417 |
34 |
Duk San Neolux Co., Ltd. | 512 |
25 |
Semiconductor Energy Laboratory Co., Ltd. | 10902 |
22 |
SFC Co., Ltd. | 277 |
19 |
Canon Inc. | 36841 |
18 |
Rohm and Haas Electronic Materials Korea Ltd. | 546 |
18 |
Sumitomo Chemical Company, Limited | 8808 |
14 |
Canon Kabushiki Kaisha | 6884 |
13 |
LT Materials Co., Ltd. | 312 |
13 |
UDC Ireland Limited | 496 |
12 |
LG Display Co., Ltd. | 11907 |
11 |
Crius Technology Group, Inc. | 19 |
11 |
Beijing Eternal Material Technology Co., Ltd | 20 |
8 |
Tosoh Corporation | 1127 |
7 |
Guangzhou ChinaRay Optoelectronic Materials Ltd. | 139 |
7 |
Other owners | 188 |