- All sections
- C - Chemistry; metallurgy
- C01G - Compounds containing metals not covered by subclasses or
- C01G 23/04 - Oxides; Hydroxides
Patent holdings for IPC class C01G 23/04
Total number of patents in this class: 495
10-year publication summary
23
|
29
|
27
|
41
|
38
|
21
|
36
|
31
|
16
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Ishihara Sangyo Kaisha, Ltd. | 663 |
17 |
The University of Tokyo | 3903 |
13 |
National Institute of Advanced Industrial Science and Technology | 3677 |
11 |
Sumitomo Chemical Company, Limited | 8808 |
9 |
Sakai Chemical Industry Co., Ltd. | 266 |
9 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
8 |
HHeLi, LLC | 62 |
8 |
The Regents of the University of California | 18943 |
7 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
6 |
M. Technique Co., Ltd. | 237 |
6 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
5 |
Rohm and Haas Company | 2805 |
5 |
Asahi Glass Company, Limited | 2985 |
5 |
Kubota Corporation | 3054 |
5 |
Otsuka Chemical Co., Ltd. | 286 |
5 |
Sumitomo Osaka Cement Co., Ltd. | 783 |
5 |
NGK Insulators, Ltd. | 4589 |
4 |
Kao Corporation | 4843 |
4 |
Denka Company Limited | 2189 |
4 |
Nissan Chemical Industries, Ltd. | 1822 |
4 |
Other owners | 355 |