- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 35/043 - Refractories from grain sized mixtures
Patent holdings for IPC class C04B 35/043
Total number of patents in this class: 139
10-year publication summary
|
10
|
9
|
10
|
6
|
12
|
6
|
6
|
4
|
8
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Refractory Intellectual Property GmbH & Co. KG | 542 |
38 |
| Refratechnik Holding GmbH | 146 |
20 |
| Krosakiharima Corporation | 286 |
19 |
| JFE Steel Corporation | 6935 |
6 |
| Nippon Steel Corporation | 6344 |
3 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
3 |
| Shinagawa Refractories Co., Ltd. | 53 |
3 |
| Wuhan University of Science and Technology | 66 |
3 |
| Rozai Kogyo Kaisha, Ltd. | 7 |
3 |
| NGK Insulators, Ltd. | 5046 |
2 |
| Calix Ltd | 93 |
2 |
| Polar Sapphire Ltd. | 11 |
2 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 493 |
2 |
| Evonik Degussa GmbH | 1492 |
1 |
| TDK Corporation | 6839 |
1 |
| Kyocera Corporation | 13930 |
1 |
| Calderys France | 53 |
1 |
| Eth Zurich | 1283 |
1 |
| Harbisonwalker International, Inc. | 206 |
1 |
| Kerneos | 32 |
1 |
| Other owners | 26 |