• 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