- All sections
- C - Chemistry; metallurgy
- C04B - Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
- C04B 35/50 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing 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: 693
10-year publication summary
|
43
|
49
|
50
|
53
|
63
|
40
|
35
|
52
|
42
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Chemical Co., Ltd. | 5132 |
48 |
| Murata Manufacturing Co., Ltd. | 22355 |
26 |
| Applied Materials, Inc. | 16587 |
18 |
| NGK Insulators, Ltd. | 4589 |
13 |
| NGK Spark Plug Co., Ltd. | 935 |
13 |
| General Electric Company | 18133 |
12 |
| Konoshima Chemical Co., Ltd. | 54 |
11 |
| Mitsui Mining & Smelting Co., Ltd. | 1373 |
11 |
| Nippon Yttrium Co., Ltd. | 31 |
11 |
| Tokyo Institute of Technology | 1367 |
10 |
| Seiko Epson Corporation | 18724 |
9 |
| Niterra Co., Ltd. | 1122 |
9 |
| TDK Corporation | 6306 |
8 |
| Kyocera Corporation | 12735 |
8 |
| Sumitomo Osaka Cement Co., Ltd. | 783 |
8 |
| Canon Inc. | 36841 |
7 |
| Sumitomo Electric Industries, Ltd. | 14131 |
7 |
| Corning Incorporated | 9932 |
7 |
| Daiichi Kigenso Kagaku Kogyo Co., Ltd. | 164 |
7 |
| Massachusetts Institute of Technology | 9795 |
6 |
| Other owners | 444 |