Patent holdings for IPC class C01G 23/04

Total number of patents in this class: 506

10-year publication summary

27
43
38
21
36
31
19
23
18
10
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
The University of Tokyo
4372
14
National Institute of Advanced Industrial Science and Technology
3793
12
Ishihara Sangyo Kaisha, Ltd.
658
12
Denka Company Limited
2735
10
Sakai Chemical Industry Co., Ltd.
284
10
The Regents of the University of California
20790
9
Panasonic Intellectual Property Management Co., Ltd.
34080
9
Sumitomo Chemical Company, Limited
8968
9
HHeLi, LLC
76
9
Shin-Etsu Chemical Co., Ltd.
6113
6
Commissariat à l'énergie atomique et aux energies alternatives
11126
6
M. Technique Co., Ltd.
252
6
Rohm and Haas Company
2943
5
Drexel University
996
5
Kubota Corporation
4403
5
Sumitomo Osaka Cement Co., Ltd.
898
5
NGK Insulators, Ltd.
5241
4
Kao Corporation
5078
4
Asahi Glass Company, Limited
2614
4
Kateeva, Inc.
394
4
Other owners 358