Patent holdings for IPC class C07C 251/68

Total number of patents in this class: 21

10-year publication summary

4
1
0
2
1
2
0
1
0
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Samyang Corporation
409
3
Zeon Corporation
4115
3
Korea Research Institute of Chemical Technology
1406
2
Jiangsu Hecheng Advanced Materials Co., Ltd.
9
2
Codagen Biosciences, Inc.
4
2
FUJIFILM Corporation
29752
1
JSR Corporation
2535
1
Ligand Pharmaceuticals Incorporated
170
1
NAF Co Ltd
2
1
Shenyang Research Institute of Chemical Industry Co., Ltd.
39
1
Sinochem Corporation
110
1
SK Petrochemical Co Ltd
2
1
Toyo Ink Mfg. Co., Ltd.
62
1
Shenyang Sinochem Agrochemicals R&D Co., Ltd.
102
1
Other owners 0