- 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: 797
10-year publication summary
|
68
|
73
|
61
|
58
|
47
|
34
|
37
|
42
|
40
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 15593 |
36 |
| Toyo Tanso Co., Ltd. | 220 |
27 |
| Diamond Innovations, Inc. | 234 |
22 |
| SGL Carbon SE | 390 |
22 |
| Baker Hughes Holdings LLC | 3001 |
20 |
| Element Six Abrasives S.A. | 147 |
17 |
| Sumitomo Electric Hardmetal Corp. | 1033 |
13 |
| Kaneka Corporation | 4566 |
13 |
| Safran Ceramics | 411 |
13 |
| Element Six Limited | 120 |
12 |
| Baker Hughes Incorporated | 5251 |
11 |
| Goodrich Corporation | 2141 |
11 |
| US Synthetic Corporation | 617 |
9 |
| PI Advanced Materials Co., Ltd. | 204 |
9 |
| Centre National de La Recherche Scientifique | 10516 |
8 |
| The United States of America as represented by the Secretary of the Navy | 2776 |
8 |
| Velo3D, Inc. | 149 |
8 |
| Smith International, Inc. | 719 |
7 |
| Ibiden Co., Ltd. | 1716 |
6 |
| Heraeus Quarzglas GmbH & Co. KG | 408 |
6 |
| Other owners | 519 |