- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 35/52 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite
Patent holdings for IPC class C04B 35/52
Total number of patents in this class: 818
10-year publication summary
|
77
|
65
|
60
|
49
|
35
|
38
|
46
|
43
|
32
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 16448 |
36 |
| Toyo Tanso Co., Ltd. | 217 |
25 |
| Diamond Innovations, Inc. | 235 |
23 |
| SGL Carbon SE | 404 |
22 |
| Baker Hughes Holdings LLC | 3020 |
20 |
| Element Six Abrasives S.A. | 145 |
17 |
| Sumitomo Electric Hardmetal Corp. | 1102 |
13 |
| Kaneka Corporation | 4732 |
13 |
| Element Six Limited | 118 |
12 |
| Safran Ceramics | 448 |
12 |
| Baker Hughes Incorporated | 4905 |
11 |
| Goodrich Corporation | 2178 |
11 |
| US Synthetic Corporation | 617 |
9 |
| PI Advanced Materials Co., Ltd. | 234 |
9 |
| Centre National de La Recherche Scientifique | 11059 |
8 |
| The United States of America as represented by the Secretary of the Navy | 2866 |
8 |
| Velo3D, Inc. | 152 |
8 |
| Rain Carbon Germany GmbH | 66 |
8 |
| Smith International, Inc. | 691 |
7 |
| Ibiden Co., Ltd. | 1678 |
6 |
| Other owners | 540 |