- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 21/072 - Binary compounds of nitrogen with metals, with silicon, or with boron with aluminium
Patent holdings for IPC class C01B 21/072
Total number of patents in this class: 227
10-year publication summary
|
5
|
17
|
17
|
29
|
19
|
24
|
14
|
16
|
11
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokuyama Corporation | 1380 |
45 |
| FUJIFILM Corporation | 29273 |
12 |
| NGK Insulators, Ltd. | 4943 |
10 |
| Crystal IS, Inc. | 124 |
8 |
| Denka Company Limited | 2545 |
6 |
| Showa Denko K.K. | 2266 |
5 |
| Toyo Aluminium Kabushiki Kaisha | 352 |
5 |
| Odysseus Technologies, Inc. | 5 |
4 |
| Resonac Corporation | 2729 |
4 |
| Industry-academic Cooperation Foundation, Yeungnam University | 67 |
3 |
| National Chung Shan Institute of Science and Technology | 350 |
3 |
| National University Corporation Nagoya University | 862 |
3 |
| 3m Innovative Properties Company | 17853 |
2 |
| Siemens AG | 24552 |
2 |
| LG Chem, Ltd. | 17581 |
2 |
| The Regents of the University of California | 19859 |
2 |
| Hitachi Chemical Company, Ltd. | 2357 |
2 |
| Denso Corporation | 24190 |
2 |
| Nichia Corporation | 3691 |
2 |
| The Government of the United States of America, as represented by the Secretary of the Navy | 1289 |
2 |
| Other owners | 103 |