- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 35/50 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds
Patent holdings for IPC class C04B 35/50
Total number of patents in this class: 706
10-year publication summary
|
50
|
53
|
64
|
40
|
36
|
53
|
44
|
28
|
22
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Chemical Co., Ltd. | 6173 |
51 |
| Murata Manufacturing Co., Ltd. | 26029 |
22 |
| Applied Materials, Inc. | 20654 |
19 |
| NGK Insulators, Ltd. | 5169 |
12 |
| NGK Spark Plug Co., Ltd. | 869 |
12 |
| Niterra Co., Ltd. | 1446 |
12 |
| General Electric Company | 14021 |
10 |
| Seiko Epson Corporation | 20554 |
9 |
| Tokyo Institute of Technology | 1301 |
9 |
| Sumitomo Electric Industries, Ltd. | 16419 |
8 |
| TDK Corporation | 7027 |
8 |
| Daiichi Kigenso Kagaku Kogyo Co., Ltd. | 181 |
8 |
| Konoshima Chemical Co., Ltd. | 69 |
8 |
| Mitsui Mining & Smelting Co., Ltd. | 1061 |
8 |
| Sumitomo Osaka Cement Co., Ltd. | 919 |
8 |
| Mitsui Kinzoku Company, Limited | 527 |
8 |
| Canon Inc. | 44585 |
7 |
| Kyocera Corporation | 14521 |
7 |
| Corning Incorporated | 10560 |
7 |
| Canon Optron Inc. | 48 |
7 |
| Other owners | 466 |