- All sections
- C - Chemistrymetallurgy
- C01G - Compounds containing metals not covered by subclasses or
- C01G 25/02 - Oxides
Patent holdings for IPC class C01G 25/02
Total number of patents in this class: 683
10-year publication summary
|
43
|
49
|
56
|
34
|
39
|
52
|
55
|
41
|
37
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daiichi Kigenso Kagaku Kogyo Co., Ltd. | 178 |
34 |
| Tosoh Corporation | 1432 |
22 |
| 3m Innovative Properties Company | 17455 |
20 |
| Kuraray Noritake Dental Inc. | 469 |
20 |
| Rhodia Operations | 1485 |
19 |
| Sumitomo Osaka Cement Co., Ltd. | 906 |
15 |
| HHeLi, LLC | 77 |
13 |
| Sakai Chemical Industry Co., Ltd. | 286 |
11 |
| NGK Insulators, Ltd. | 5174 |
10 |
| Magnesium Elektron Limited | 80 |
10 |
| Corning Incorporated | 10538 |
9 |
| Essilor International (compagnie Generale D'optique) | 3001 |
8 |
| Nippon Shokubai Co., Ltd. | 1533 |
8 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 496 |
8 |
| Shandong Sinocera Functional Material Co., Ltd. | 51 |
7 |
| Fujimi Incorporated | 818 |
6 |
| Ivoclar Vivadent AG | 1034 |
6 |
| Saint-Gobain Ceramics & Plastics, Inc. | 801 |
6 |
| Tohoku University | 3034 |
6 |
| Nippon Denko Co., Ltd. | 23 |
5 |
| Other owners | 440 |