Patent holdings for IPC class C07C 43/225

Total number of patents in this class: 442

10-year publication summary

52
35
21
27
20
11
22
17
14
8
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
JNC Corporation
1561
31
JNC Petrochemical Corporation
399
27
DIC Corporation
3801
13
Chisso Petrochemical Corporation
61
12
LG Chem, Ltd.
17635
11
Daikin Industries, Ltd.
10027
11
Chisso Corporation
64
8
FUJIFILM Corporation
29437
7
Sumitomo Chemical Company, Limited
9043
7
Samsung Display Co., Ltd.
34907
6
AGC Seimi Chemical Co., Ltd.
61
6
Kyoto University
2801
6
Peloton Therapeutics, Inc.
37
6
Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd.
199
6
Merck Patent GmbH
5815
5
Ajinomoto Co., Inc.
2295
5
British Columbia Cancer Agency Branch
192
5
Osaka University
3379
5
Zhejiang Ausun Pharmaceutical Co., Ltd.
36
5
Industrial Technology Research Institute
5081
4
Other owners 256