Patent holdings for IPC class C08G 63/87

Total number of patents in this class: 171

10-year publication summary

10
13
10
11
11
15
16
14
16
4
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Nanjing University
646
11
Eastman Chemical Company
2239
9
Toyobo Co., Ltd.
2286
8
Covestro Deutschland AG
2429
4
Nanjing Tech University
218
4
Teijin Limited
1216
4
Covestro Intellectual Property GmbH & Co. KG
501
4
LG Chem, Ltd.
17205
3
Toray Industries, Inc.
6652
3
Nippon Shokubai Co., Ltd.
1487
3
Sakai Chemical Industry Co., Ltd.
266
3
E.I. DuPont de Nemours and Company
468
3
BASF SE
19740
2
Centre National de La Recherche Scientifique
9632
2
Bayer MaterialScience AG
874
2
PPG Industries Ohio, Inc.
3430
2
Mitsubishi Chemical Corporation
4313
2
Henkel AG & Co. KGaA
10129
2
Council of Scientific & Industrial Research
1397
2
Kureha Corporation
1026
2
Other owners 96