• All sections
  • C - Chemistrymetallurgy
  • 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: 894

10-year publication summary

58
67
66
71
73
61
88
84
71
38
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Merck Patent GmbH
5830
102
LG Chem, Ltd.
17620
99
Idemitsu Kosan Co., Ltd.
4220
99
Samsung Display Co., Ltd.
34641
79
Shaanxi Lighte Optoelectronics Material Co., Ltd.
257
59
Duk San Neolux Co., Ltd.
649
35
Hodogaya Chemical Co., Ltd.
434
34
Semiconductor Energy Laboratory Co., Ltd.
11398
26
SFC Co., Ltd.
321
19
Canon Inc.
39818
18
LT Materials Co., Ltd.
405
16
Rohm and Haas Electronic Materials Korea Ltd.
330
14
Sumitomo Chemical Company, Limited
9047
13
Canon Kabushiki Kaisha
7055
13
LG Display Co., Ltd.
13438
12
UDC Ireland Limited
480
12
Crius Technology Group, Inc.
22
11
Beijing Eternal Material Technology Co., Ltd
23
8
DuPont Specialty Materials Korea Ltd.
286
8
Tosoh Corporation
1285
7
Other owners 210