- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 21/068 - Binary compounds of nitrogen with metals, with silicon, or with boron with silicon
Patent holdings for IPC class C01B 21/068
Total number of patents in this class: 217
10-year publication summary
|
13
|
11
|
21
|
16
|
12
|
27
|
16
|
25
|
16
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denka Company Limited | 2563 |
18 |
| Ube Industries, Ltd. | 852 |
15 |
| Tokuyama Corporation | 1383 |
14 |
| SiNtx Technologies, Inc. | 64 |
9 |
| Combustion Synthesis Co.,Ltd. | 10 |
8 |
| Sumitomo Chemical Company, Limited | 9040 |
7 |
| Gelest, Inc. | 145 |
7 |
| Toshiba Corporation | 12320 |
4 |
| FUJIFILM Corporation | 29305 |
4 |
| Dnf Co.,Ltd. | 75 |
4 |
| Schmid Silicon Technology GmbH | 27 |
4 |
| Toshiba Materials Co., Ltd. | 662 |
4 |
| Micron Technology, Inc. | 26231 |
3 |
| Tokyo Electron Limited | 12645 |
3 |
| Alzchem Trostberg GmbH | 262 |
3 |
| American Air Liquide, Inc. | 249 |
3 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1294 |
3 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3967 |
3 |
| Dow Silicones Corporation | 1917 |
3 |
| Qingdao Cup New Materials Co., Ltd. | 4 |
3 |
| Other owners | 95 |