• 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: 937

10-year publication summary

67
66
71
73
61
88
86
71
61
38
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Merck Patent GmbH
5755
106
LG Chem, Ltd.
17978
99
Idemitsu Kosan Co., Ltd.
4285
97
Samsung Display Co., Ltd.
39154
85
Shaanxi Lighte Optoelectronics Material Co., Ltd.
327
71
Duk San Neolux Co., Ltd.
703
40
Hodogaya Chemical Co., Ltd.
435
34
Semiconductor Energy Laboratory Co., Ltd.
11877
26
SFC Co., Ltd.
338
19
Canon Inc.
44414
18
LT Materials Co., Ltd.
441
17
Rohm and Haas Electronic Materials Korea Ltd.
332
14
Sumitomo Chemical Company, Limited
8989
13
LG Display Co., Ltd.
15100
12
UDC Ireland Limited
507
12
Canon Kabushiki Kaisha
7406
11
Crius Technology Group, Inc.
22
11
Tosoh Corporation
1438
10
Beijing Eternal Material Technology Co., Ltd
27
10
DuPont Specialty Materials Korea Ltd.
309
9
Other owners 223