- 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 35/581 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on aluminium nitride
Patent holdings for IPC class C04B 35/581
Total number of patents in this class: 351
10-year publication summary
|
26
|
24
|
24
|
27
|
34
|
26
|
22
|
24
|
27
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4589 |
45 |
| Denka Company Limited | 2189 |
14 |
| Tokuyama Corporation | 1248 |
14 |
| Applied Materials, Inc. | 16587 |
12 |
| Sumitomo Electric Industries, Ltd. | 14131 |
10 |
| Kyocera Corporation | 12735 |
8 |
| Toshiba Materials Co., Ltd. | 600 |
8 |
| BASF SE | 19740 |
7 |
| Mitsubishi Materials Corporation | 2378 |
7 |
| Watlow Electric Manufacturing Company | 569 |
6 |
| 3m Innovative Properties Company | 18406 |
5 |
| OSRAM OLED GmbH | 1841 |
5 |
| MICO Ceramics Ltd. | 42 |
5 |
| Creeled, Inc. | 748 |
5 |
| Appotronics Corporation Limited | 1111 |
4 |
| CeramTec GmbH | 319 |
4 |
| HRL Laboratories, LLC | 1588 |
4 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
3 |
| Other owners | 178 |