• 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: 864

10-year publication summary

58
67
66
71
73
62
88
84
71
2
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Merck Patent GmbH
5847
103
Idemitsu Kosan Co., Ltd.
4106
100
LG Chem, Ltd.
17632
97
Samsung Display Co., Ltd.
32700
76
Shaanxi Lighte Optoelectronics Material Co., Ltd.
222
54
Hodogaya Chemical Co., Ltd.
424
34
Duk San Neolux Co., Ltd.
587
27
Semiconductor Energy Laboratory Co., Ltd.
11071
23
SFC Co., Ltd.
293
19
Canon Inc.
38071
18
LT Materials Co., Ltd.
364
16
Rohm and Haas Electronic Materials Korea Ltd.
330
14
Sumitomo Chemical Company, Limited
8976
13
Canon Kabushiki Kaisha
6939
13
UDC Ireland Limited
490
12
LG Display Co., Ltd.
12875
11
Crius Technology Group, Inc.
20
11
Beijing Eternal Material Technology Co., Ltd
21
8
Tosoh Corporation
1212
7
Guangzhou ChinaRay Optoelectronic Materials Ltd.
147
7
Other owners 201