Patent holdings for IPC class C07C 33/03

Total number of patents in this class: 87

10-year publication summary

1
5
4
11
4
5
4
1
1
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
DSM IP Assets B.V.
5672
12
Lyondell Chemical Technology, L.P.
268
7
BASF SE
20728
6
Zhejiang University
3074
5
LG Chem, Ltd.
17538
3
Centre National de La Recherche Scientifique
10284
3
Johnson Matthey Public Limited Company
1857
3
Versalis S.P.A.
532
3
Zhejiang Nhu Company Limited
170
3
Shandong Nhu Pharmaceutical Co., Ltd.
25
3
Syngenta Participations AG
1927
2
Ecole Centrale de Lille
51
2
Zhejiang Huangma Technology Co., Ltd
31
2
HEXO Operations Inc.
204
2
Shandong Nhu Vitamin Co., Ltd.
15
2
Shell Internationale Research Maatschappij B.V.
3544
1
The Regents of the University of California
19784
1
Shell Oil Company
2142
1
Kao Corporation
4939
1
Dow Global Technologies LLC
10328
1
Other owners 24