- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 35/443 - Magnesium aluminate spinel
Patent holdings for IPC class C04B 35/443
Total number of patents in this class: 218
10-year publication summary
|
22
|
21
|
21
|
17
|
11
|
9
|
11
|
11
|
12
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Refractory Intellectual Property GmbH & Co. KG | 568 |
18 |
| Corning Incorporated | 10514 |
17 |
| Sumitomo Electric Industries, Ltd. | 16396 |
15 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 495 |
12 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1454 |
7 |
| Murata Manufacturing Co., Ltd. | 25776 |
6 |
| NGK Insulators, Ltd. | 5241 |
6 |
| Refratechnik Holding GmbH | 144 |
6 |
| Kyocera Corporation | 14404 |
5 |
| Saint-Gobain Ceramics & Plastics, Inc. | 803 |
5 |
| CoorsTek GK | 55 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 6113 |
3 |
| CeramTec-ETEC GmbH | 20 |
3 |
| Denka Company Limited | 2735 |
3 |
| DIC Corporation | 3965 |
3 |
| Rutgers, The State University of New Jersey | 1975 |
3 |
| Sasol (USA) Corporation | 68 |
3 |
| Shanghai Institute of Ceramics, Chinese Academy of Sciences | 162 |
3 |
| Tateho Chemical Industries Co., Ltd. | 60 |
3 |
| 6K Inc | 132 |
3 |
| Other owners | 90 |