Patent holdings for IPC class C07C 33/22

Total number of patents in this class: 96

10-year publication summary

4
4
8
5
6
3
5
3
1
3
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Takasago International Corporation
403
18
Sumitomo Chemical Company, Limited
9105
3
Kaneka Corporation
4608
3
National University Corporation Nagoya University
834
3
Wanhua Chemical Group Co., Ltd.
359
3
DSM IP Assets B.V.
5533
2
Dalian University of Technology
1544
2
Kuraray Co., Ltd.
3543
2
Sun Yat-sen University
693
2
The Procter & Gamble Company
22025
1
BASF SE
21137
1
Shell Internationale Research Maatschappij B.V.
3538
1
AstraZeneca AB
2857
1
Syngenta Participations AG
1723
1
Syngenta Limited
448
1
Showa Denko K.K.
2168
1
BIAL - Portela & CA, S.A.
221
1
Central Glass Company, Limited
1272
1
Changchun Institute of Applied Chemistry Chinese Academy of Sciences
110
1
Council of Scientific & Industrial Research
1427
1
Other owners 47